{"paper_id":"0e9179b0-fd59-4fc2-98e2-09c3aa6c8698","body_text":"Heat stress and workplace hazards exacerbate the socioeconomic burden of occupational hand trauma presenting to a tertiary care center in India | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Heat stress and workplace hazards exacerbate the socioeconomic burden of occupational hand trauma presenting to a tertiary care center in India Andrew Lourdunathan, Ravichandran Subramaniam This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9218067/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 16 You are reading this latest preprint version Abstract Background: In India’s rapidly expanding industrial sector, complex occupational hand trauma represents a silent epidemic among manual laborers. Compounded by climate-driven heat stress, these injuries are critical sentinel events exposing systemic occupational safety failures. This study evaluates the socioeconomic burden, occupational drivers, and prolonged disability resulting from such trauma. Methods: A secondary socio-epidemiological analysis was conducted on a prospectively collected cohort of 80 patients presenting with traumatic hand injuries to a tertiary care center in Tamil Nadu between 2020 and 2023. Variables analyzed included occupational distribution, mechanisms of injury, Return to Work (RTW) timelines, and residual functional impairment (QuickDASH-9 scores). Results: The cohort was predominantly composed of young, prime working-age males (Mean age 31.2 ± 10.0), with construction and informal manual labor constituting the largest occupational groups. Road traffic accidents (36.25%) and direct worksite hazards (sharp lacerations and heavy crush injuries, 51.25%) drove the majority of trauma. Over 42% of the cohort faced prolonged economic inactivity, requiring more than one month to return to work. Extended absence (>2 months) correlated with severe residual functional disability (mean QuickDASH score 48.9), compared to rapid workforce reentry (mean score 10.8). Conclusion: Complex occupational extremity trauma acts as a catalyst for severe socioeconomic distress among vulnerable laborers. Mitigating this burden requires a shift from reactive surgical management to proactive, socially accountable public health policies, including mandatory machine guarding, occupational health surveillance, and climate-adaptive worksite protocols to combat heat-induced cognitive fatigue. Occupational trauma Socioeconomic burden Heat stress Hand injuries Return to work Industrial hazards Climate adaptation Informal labor Introduction India is currently navigating a period of unprecedented industrial and infrastructural growth, driven by a rapidly expanding working-age population. While macroeconomic indicators reflect this progress, the human cost of this rapid industrialization frequently bypasses policy audits and materializes in the emergency departments of tertiary healthcare centers. Occupational extremity trauma, particularly complex hand injuries, represents a silent epidemic among India’s manual laborers, mechanics, and construction workers. Historically, occupational health in developing nations has struggled with the legacy of implementing and auditing industrial safety standards [1]. Despite established frameworks in the organized sector, a vast proportion of the workforce operates in environments where basic ergonomic safeguards, machine guarding, and occupational health surveillance are grossly inadequate [2]. This pre-existing vulnerability is now being drastically compounded by an emerging threat multiplier: climate-driven extreme heat [3]. Rising ambient temperatures across the Indian subcontinent are no longer just an environmental concern; they are an acute occupational hazard. Prolonged exposure to unmitigated heat stress in industrial and outdoor worksites bypasses conventional safety protocols by inducing profound cognitive and motor-neuron fatigue [4]. This physiological decline compromises judgment and reflex times, directly correlating with a surge in fatigue-induced mechanical errors. Consequently, workers operating heavy machinery or navigating hazardous industrial environments are at a critically elevated risk for severe, life-altering trauma [5]. In surgical literature, these injuries are routinely quantified by the complexity of tissue loss and the reconstructive microsurgery required to salvage the limb. However, viewing these injuries solely through a clinical lens obscures their broader public health implications. Every crushed or amputated hand presenting to a hospital is a \"sentinel event\"—a glaring indicator of a systemic failure in workplace safety regulations and climate adaptation strategies. Furthermore, the true burden of occupational trauma extends far beyond the operating room. For a daily-wage laborer or a skilled mechanic, a complex hand injury initiates a cascade of socioeconomic catastrophe. Prolonged rehabilitation, residual functional impairment, and delayed return to work can plunge vulnerable families into deep financial insecurity, transforming a surgical challenge into a socio-economic crisis. Therefore, this study aims to recontextualize occupational extremity trauma from a public health perspective. By analyzing the demographic patterns, injury mechanisms, and functional rehabilitation timelines of industrial workers presenting to a tertiary care center in Tamil Nadu, this paper seeks to highlight the urgent socioeconomic burden of workplace hazards. Ultimately, we argue that mitigating the escalating burden on healthcare infrastructure requires a paradigm shift: moving away from reactive surgical management toward proactive, socially accountable public health interventions, strict occupational safety enforcement, and mandatory climate-adaptive worksite protocols. Methods Study Design and Setting This study represents a secondary socio-epidemiological analysis of a prospectively collected trauma cohort. Data was gathered from patients presenting with acute hand trauma to the Department of General Surgery at Shri Sathya Sai Medical College and Research Institute, situated on the Thiruporur-Guduvanchery Highway in the Chengalpattu District of Tamil Nadu, India, between the years 2020 and 2023. While the acute surgical management, reconstructive techniques, and immediate clinical outcomes of this patient cohort are described separately in concurrent surgical literature, the present analysis uniquely evaluates the epidemiological drivers, occupational hazards, and longitudinal socioeconomic impact of the sustained injuries. The institution is strategically located on the Thiruporur-Guduvanchery Highway, serving as a critical tertiary trauma center for a rapidly expanding, high-density industrial corridor. The hospital’s catchment area bridges the Old Mahabalipuram Road (OMR) infrastructure belt and the Grand Southern Trunk (GST) Road manufacturing hub—often referred to as the 'Detroit of Asia.' Consequently, the patient demographic is heavily drawn from the surrounding Tier-1 and Tier-2 automotive engineering plants, pharmaceutical manufacturing units, large-scale warehousing hubs, and the State Industries Promotion Corporation of Tamil Nadu (SIPCOT) industrial estates. This unique geographical positioning provides a highly representative sample of the occupational hazards prevalent in India’s booming semi-organized and industrial sectors. Data Collection and Variables A total of 80 patients were included in the cohort. For this socio-epidemiological analysis, data extraction focused on demographic and occupational variables rather than anatomical zones of injury. Key variables included patient age, sex, primary occupation, and the specific mechanism/mode of injury (e.g., road traffic accidents, sharp instrument lacerations, blunt-force crush injuries). To quantify the socioeconomic burden and prolonged disability resulting from the trauma, two primary outcome measures were analyzed: the patient’s timeline for \"Return to Work\" (RTW), serving as a proxy for economic inactivity and wage loss, and the QuickDASH-9 (Disabilities of the Arm, Shoulder, and Hand) score at the time of discharge, utilized to measure residual functional impairment upon reentry into society [7]. Results Demographic Profile and Vulnerable Occupations A total of 80 patients presenting with traumatic hand injuries were analyzed in this study. The cohort was predominantly male (62.5%, n=50), with a mean age of 31.2 years (SD ± 10.0). This demographic clustering underscores a critical public health observation: occupational extremity trauma disproportionately affects the prime working-age population, thereby maximizing the potential loss of economic productivity for affected households. Analysis of occupational distribution revealed that a significant proportion of the injuries occurred among workers engaged in manual or physically intensive labor. Construction workers constituted the single largest occupational group in the cohort (22.5%, n=18), followed by individuals engaged in household and informal labor (21.2%, n=17), as well as mechanics, drivers, and sanitation workers. This distribution highlights the disproportionate vulnerability of the unorganized and semi-organized sectors, where occupational health surveillance and ergonomic safety standards are often inadequate or entirely absent (Table 1). Table 1: Demographic Profile and Occupational Distribution (n = 80) Variable Frequency (n) Percentage (%) Age (years) Mean ± SD 31.2 ± 10.0 - Sex Male 50 62.5% Female 30 37.5% Occupational Sector Construction Laborer 18 22.5% Housewife / Informal Household Labor 17 21.2% Engineer (Various fields) 8 10.0% Healthcare (Doctor/Nurse) 11 13.7% Student 6 7.5% Service / Transport (Chef, Kitchen, Driver) 7 8.8% Mechanic 3 3.8% IT / Software Engineer 3 3.8% Teacher 3 3.8% Sanitation Worker 2 2.5% Retired 2 2.5% Patterns of Trauma and Worksite Hazards Instead of evaluating injuries solely by anatomical zones, mechanisms of injury were assessed to identify specific environmental and occupational hazards. Road Traffic Accidents (RTAs) were the most prevalent cause of injury (36.25%, n=29), affecting a wide cross-section of workers, including construction laborers, mechanics, and drivers. This reflects not only occupational transit hazards but also the potential role of fatigue and heat stress in commuting accidents among wage laborers. Our analysis of injury mechanisms further substantiates the lack of environmental safeguards in these sectors. The high prevalence of sharp lacerations and heavy blunt-force crush injuries among manual laborers points directly to an absence of functional machine guarding, a finding highly consistent with the dense concentration of automotive component manufacturing and heavy engineering units within the hospital's immediate geographical catchment. Direct occupational and environmental hazards accounted for the majority of the remaining trauma. Sharp object lacerations (knives and glass) constituted 37.5% (n=30) of the total injuries, frequently sustained by construction workers, software engineers, and informal laborers. Furthermore, blunt-force crush injuries (categorized primarily under heavy door/structural impacts) accounted for 13.75% (n=11) of presentations. Notably, among the highly vulnerable construction cohort, crush injuries and sharp lacerations were the most common mechanisms of trauma, pointing to a severe lack of personal protective equipment (PPE) and worksite structural safety (Table 2). Table 2: Mechanism of Worksite and Environmental Hazards (n = 80) Mode of Injury Frequency (n) Percentage (%) Primary Affected Occupations Road Traffic Accident (RTA) 29 36.3% Housewife (6), Construction (4), Engineer (4), Nurse (4) Sharp Instrument (Knife) 18 22.5% Construction (4), Housewife (3), Healthcare (3) Sharp Laceration (Glass) 12 15.0% Housewife (5), Construction (3), Student (3) Blunt-Force Crush (Heavy Door/Structure) 11 13.8% Construction (4), Housewife (3) Blast / Firecracker 6 7.5% Construction (2) Assault 4 5.0% Chef (2) The Socioeconomic and Functional Burden: Prolonged Disability To quantify the socioeconomic impact of these injuries, the timeline for \"Return to Work\" (RTW) was utilized as a proxy for economic inactivity. The data revealed a substantial burden of prolonged wage loss among the cohort. More than forty percent of the patients faced severe economic disruption: 26.25% (n=21) were economically inactive for 1 to 2 months, and 16.25% (n=13) were unable to return to work for more than 2 months. Only a quarter of the patients (25.0%, n=20) were able to resume work within 1 to 2 weeks of their injury (Table 3). Table 3: Socioeconomic Impact: Return to Work and Residual Disability. Return to Work (RTW) Timeline Frequency (n) Percentage (%) Mean QuickDASH-9 Score on Discharge* 1 to 2 Weeks 20 25.0% 10.8 3 to 4 Weeks 26 32.5% 29.3 1 to 2 Months 21 26.3% 44.9 More than 2 Months 13 16.3% 48.9 *Higher QuickDASH-9 scores indicate greater residual functional disability and physical impairment. This extended absence from the workforce correlated directly with severe residual functional impairment, measured by the QuickDASH-9 scoring system at the time of discharge. Patients who were able to return to work rapidly (1 to 2 weeks) demonstrated minimal residual disability, with a mean QuickDASH score of 10.8. In stark contrast, patients requiring 1 to 2 months of rehabilitation exhibited a mean QuickDASH score of 44.8, while those incapacitated for more than 2 months recorded a severe mean functional impairment score of 48.9. This direct correlation demonstrates that complex occupational hand trauma does not merely require acute surgical intervention; it results in a prolonged, debilitating phase of functional limitation that severely compromises the worker's earning capacity and traps vulnerable families in cycles of medical-related financial distress. Discussion The findings of this study underscore a critical, yet frequently overlooked, reality in India’s rapid industrial expansion: complex occupational hand trauma is not merely a surgical challenge, but a profound public health crisis. The demographic and occupational distribution of our cohort—predominantly young males engaged in manual labor, construction, and informal industrial sectors—highlights a severe structural vulnerability within the workforce. When a young construction worker or mechanic presents to a tertiary care emergency department with a severe crush injury or mechanical amputation, it must be viewed as a \"sentinel event.\" Such injuries are rarely isolated accidents; rather, they are the terminal, visible endpoints of cascading failures in occupational safety regulations, worksite ergonomics, and labor protections. Our analysis of injury mechanisms further substantiates the lack of environmental safeguards in these sectors. The high prevalence of sharp lacerations and heavy blunt-force crush injuries among manual laborers points directly to an absence of functional machine guarding and mandatory PPE. Furthermore, the substantial proportion of injuries resulting from RTAs among this demographic suggests that occupational hazards extend beyond the immediate worksite. For the daily wage earner, the grueling combination of physically exhausting labor and inadequate transit safety creates a continuous continuum of risk. Viewing these injury patterns through an epidemiological lens reveals that the current tertiary healthcare infrastructure is disproportionately bearing the burden of primary preventative failures in the industrial and unorganized sectors. While the structural deficits in India’s occupational safety framework are well-documented, the acute surge in complex extremity trauma must also be contextualized within the escalating climate crisis [3]. Recent socio-epidemiological paradigms have increasingly identified rising ambient temperatures as a severe occupational hazard, particularly for outdoor laborers and industrial workers in poorly ventilated environments. However, the discourse frequently limits \"heat-related illness\" to direct physiological thermal conditions, such as heatstroke or severe dehydration. The injury patterns observed in our cohort necessitate a broader diagnostic lens: unmitigated heat stress acts as a profound catalyst for traumatic injury through the induction of cognitive and motor-neuron fatigue [4]. Prolonged exposure to extreme heat, coupled with the rigorous physical demands of manual labor and construction, accelerates cognitive decline. This physiological fatigue significantly compromises hazard perception, delays reflex times, and impairs critical decision-making abilities. Consequently, a worker operating heavy industrial machinery or navigating a high-risk construction site under severe thermal stress is highly susceptible to fatigue-induced mechanical errors [5]. The high incidence of severe crush injuries and sharp-force trauma observed in this study is likely exacerbated by this phenomenon. The cognitive inability to safely operate equipment or adhere to complex safety protocols—even when such protocols nominally exist—transforms a predictable environmental stressor into a devastating surgical emergency. Therefore, occupational extremity trauma must be recognized not solely as an accident of mechanics, but as a critical, indirect consequence of climate vulnerability among the labor force. Finally, the true magnitude of this crisis is captured not in the operating theater, but in the prolonged socioeconomic disruption that follows the initial trauma. For the demographic represented in this cohort—primarily daily-wage earners and informal sector workers—the RTW timeline serves as a critical indicator of economic survival. With over forty percent of the patients experiencing a workforce absence exceeding one month, and a significant subset facing incapacitation for over two months, the financial implications for these households are catastrophic. This prolonged economic inactivity is inextricably linked to severe residual functional impairment, as evidenced by the high QuickDASH-9 scores [7] recorded at discharge for these individuals. Consequently, a complex occupational injury initiates a vicious cycle of medical-related debt and loss of livelihood, effectively transforming a preventable workplace hazard into a catalyst for deep socioeconomic distress. Addressing this escalating burden necessitates a definitive paradigm shift from reactive surgical management to proactive, upstream public health policy. Tertiary healthcare infrastructure cannot continue to function as the sole safety net for industrial negligence and climate vulnerability. Primary prevention strategies must be aggressively enforced across both semi-organized and unorganized sectors. This requires the mandatory implementation of functional machine guarding, the provision of targeted PPE, and the establishment of robust, accessible occupational health surveillance. Crucially, as ambient temperatures continue to rise, traditional occupational safety frameworks must evolve to integrate mandatory climate-adaptive protocols [6]. Mitigating the risk of fatigue-induced mechanical errors requires the implementation of strict heat-action plans, including enforced rest-hydration cycles and strategically timed work shifts, specifically tailored for high-risk industrial, mechanical, and construction sites. Furthermore, comprehensive social safety nets and expedited worker’s compensation mechanisms are imperative to support vulnerable families during the critical, prolonged rehabilitation phase. Conclusion: The escalating incidence of complex occupational extremity trauma in India’s industrial and unorganized sectors can no longer be treated merely as a burden on surgical infrastructure. As this study demonstrates, these injuries are critical sentinel events that expose severe, systemic deficits in both workplace safety and climate adaptation. For vulnerable manual laborers, the trauma extends far beyond the acute physical injury, precipitating a devastating cascade of prolonged functional disability and severe economic disruption. Furthermore, traditional frameworks of occupational health must urgently expand to recognize unmitigated heat stress not just as an environmental discomfort, but as a primary catalyst for cognitive fatigue and subsequent mechanical trauma. As ambient temperatures rise, the intersection of climate vulnerability and hazardous manual labor creates a compounding threat to workforce survival. To protect the prime working-age population, public health authorities and policymakers must fundamentally transition from reactive medical management to proactive, socially accountable interventions [8]. This necessitates the strict enforcement of functional machinery guards, the provision of targeted personal protective equipment, and the implementation of mandatory, climate-adaptive labor practices—such as enforced hydration and rest-cycle protocols in high-risk environments [6]. Ultimately, mitigating this profound socioeconomic burden requires ensuring that the rapid pace of industrial progress is no longer subsidized by the physical and financial ruin of its most vulnerable laborers. Abbreviations GST Grand Southern Trunk IT Information Technology OMR Old Mahabalipuram Road PPE Personal Protective Equipment QuickDASH-9 Quick Disabilities of the Arm, Shoulder, and Hand (9-item shortened version) RTA Road Traffic Accident RTW Return to Work SD Standard Deviation SIPCOT State Industries Promotion Corporation of Tamil Nadu Declarations Clinical trial number: not applicable. Ethical Approval and accordance: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Ethical approval for this study was obtained from the Institutional Ethics Committee (IEC No.: 2021/645, IEC Meeting No.: 39) of Shri Sathya Sai Medical College and Research Institute. Consent to participate: Informed consent was obtained from all individual participants included in the study. Consent for publication: Not applicable. (No identifying individual participant data, images, or videos are included in this manuscript). Availability of data and materials: The datasets generated and/or analyzed during the current study are not publicly available to protect patient confidentiality but are available from the corresponding author on reasonable request. Competing interests: The authors declare that they have no competing interests. Disclosure of Secondary Analysis: The authors transparently declare that this manuscript represents a secondary socio-epidemiological analysis of a prospectively collected trauma cohort. The acute surgical management and immediate clinical outcomes of this cohort are the subject of a separate clinical evaluation. The current manuscript uniquely addresses the public health, socioeconomic, and occupational drivers of these injuries. Funding: The authors declare that no funds, grants, or other support were received during the preparation of this manuscript. Authors' contributions: A.L. conceptualized the secondary public health analysis, extracted the socioeconomic data, interpreted the findings regarding occupational hazards and functional disability, and drafted the primary manuscript. R.K.S. provided critical institutional supervision, contributed to the interpretation of the clinical and epidemiological data, and critically reviewed the manuscript for important intellectual content. Both authors read and approved the final manuscript. Acknowledgements: Not applicable. References Ahasan R. Legacy of implementing industrial health and safety in developing countries. J Physiol Anthropol Appl Hum Sci. 2001;20(6):311–9. https://doi.org/10.2114/jpa.20.311 . Loewenson R. Globalization and occupational health: a perspective from southern Africa. Bull World Health Organ. 2001;79(9):863–8. Marinaccio A, Gariazzo C, Taiano L, Bonafede M, Martini D, D'Amario S, de'Donato F, Morabito M, Worklimate working group. Climate change and occupational health and safety. Risk of injuries, productivity loss and the co-benefits perspective. Environ Res. 2025;269:120844. https://doi.org/10.1016/j.envres.2025.120844 . Shannon B, Abasilim C, Friedman LS. Emergent occupational injuries presenting to hospital during increasing and extreme heat days in Illinois (USA). Int J Biometeorol. 2025;69:975–87. https://doi.org/10.1007/s00484-025-02871-1 . Brooks K, Landeg O, Kovats S, Sewell M, O'Connell E. Heatwaves, hospitals and health system resilience in England: a qualitative assessment of frontline perspectives from the hot summer of 2019. BMJ Open. 2023;13(3):e068298. https://doi.org/10.1136/bmjopen-2022-068298 . World Health Organization. Operational framework for building climate resilient and low carbon health systems. Geneva: World Health Organization; 2023. Franchignoni F, Vercelli S, Giordano A, Sartorio F, Bravini E, Ferriero G. Minimal clinically important difference of the disabilities of the arm, shoulder and hand outcome measure (DASH) and its shortened version (QuickDASH). J Orthop Sports Phys Ther. 2014;44(1):30–9. https://doi.org/10.2519/jospt.2014.4893 . Boelen C, Woollard R. Social accountability: the extra leap to excellence for educational institutions. Med Teach. 2011;33(8):614–9. https://doi.org/10.3109/0142159X.2011.590248 . Additional Declarations No competing interests reported. Supplementary Files V3TablesWorkplaceHazardHandInjuires.docx Cite Share Download PDF Status: Under Review Version 1 posted Reviews received at journal 19 May, 2026 Reviewers agreed at journal 18 May, 2026 Reviews received at journal 16 May, 2026 Reviewers agreed at journal 16 May, 2026 Reviewers agreed at journal 16 May, 2026 Reviews received at journal 14 May, 2026 Reviews received at journal 14 May, 2026 Reviewers agreed at journal 14 May, 2026 Reviewers agreed at journal 14 May, 2026 Reviewers agreed at journal 13 May, 2026 Reviewers agreed at journal 13 May, 2026 Reviewers invited by journal 14 Apr, 2026 Editor invited by journal 14 Apr, 2026 Editor assigned by journal 08 Apr, 2026 Submission checks completed at journal 03 Apr, 2026 First submitted to journal 03 Apr, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {\"props\":{\"pageProps\":{\"initialData\":{\"identity\":\"rs-9218067\",\"acceptedTermsAndConditions\":true,\"allowDirectSubmit\":false,\"archivedVersions\":[],\"articleType\":\"Research Article\",\"associatedPublications\":[],\"authors\":[{\"id\":623223582,\"identity\":\"ddb35e1c-8d79-4456-8273-3816b7a8c56c\",\"order_by\":0,\"name\":\"Andrew Lourdunathan\",\"email\":\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA4UlEQVRIiWNgGAWjYHACAyC2ADEMH4P5zMwNxGiRADGMjcEcZkbitZhJQzgEtPDPbt724WObhJzB7cPbqgsq/kTztwO1/KjYhlOLxJ1jxTNntkkYG5xLK7s944xB7ozDjA2MPWdu47bmRo4xM+82icQNZ3jMbvO2GeQ2ALUwM7bh1iIP0vIXqqUYpGU+IS0GIC2MUC3MIC0bCGkxvJFWzNj7T8JY8gxbsTTPGePcjUAtB/H5Re5G8maGH2ds5PjOMG/8zFMhlzvv/OGDD35U4PE+VnCARPWjYBSMglEwCtAAAJapVgPRKNkyAAAAAElFTkSuQmCC\",\"orcid\":\"\",\"institution\":\"Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth (Deemed to be University, Shri Sathya Sai Nagar\",\"correspondingAuthor\":true,\"prefix\":\"\",\"firstName\":\"Andrew\",\"middleName\":\"\",\"lastName\":\"Lourdunathan\",\"suffix\":\"\"},{\"id\":623223583,\"identity\":\"e5b251c1-90b8-448e-8e8c-b217e6e492aa\",\"order_by\":1,\"name\":\"Ravichandran Subramaniam\",\"email\":\"\",\"orcid\":\"\",\"institution\":\"Shri Sathya Sai Medical College and Research Institute, Sri Balaji Vidyapeeth (Deemed to be University, Shri Sathya Sai Nagar\",\"correspondingAuthor\":false,\"prefix\":\"\",\"firstName\":\"Ravichandran\",\"middleName\":\"\",\"lastName\":\"Subramaniam\",\"suffix\":\"\"}],\"badges\":[],\"createdAt\":\"2026-03-25 04:39:25\",\"currentVersionCode\":1,\"declarations\":\"\",\"doi\":\"10.21203/rs.3.rs-9218067/v1\",\"doiUrl\":\"https://doi.org/10.21203/rs.3.rs-9218067/v1\",\"draftVersion\":[],\"editorialEvents\":[],\"editorialNote\":\"\",\"failedWorkflow\":false,\"files\":[{\"id\":107706062,\"identity\":\"9231b99e-3f62-4c03-9c85-d7d119733765\",\"added_by\":\"auto\",\"created_at\":\"2026-04-24 09:17:17\",\"extension\":\"pdf\",\"order_by\":0,\"title\":\"\",\"display\":\"\",\"copyAsset\":false,\"role\":\"manuscript-pdf\",\"size\":204453,\"visible\":true,\"origin\":\"\",\"legend\":\"\",\"description\":\"\",\"filename\":\"manuscript.pdf\",\"url\":\"https://assets-eu.researchsquare.com/files/rs-9218067/v1/d2ce798e-9c8e-448b-83f8-de0f26237f0a.pdf\"},{\"id\":107530254,\"identity\":\"75dd1cd4-666c-401a-9a77-16c807b69a2e\",\"added_by\":\"auto\",\"created_at\":\"2026-04-22 10:20:46\",\"extension\":\"docx\",\"order_by\":0,\"title\":\"\",\"display\":\"\",\"copyAsset\":false,\"role\":\"supplement\",\"size\":25964,\"visible\":true,\"origin\":\"\",\"legend\":\"\",\"description\":\"\",\"filename\":\"V3TablesWorkplaceHazardHandInjuires.docx\",\"url\":\"https://assets-eu.researchsquare.com/files/rs-9218067/v1/67e3553e06b8986165ebae91.docx\"}],\"financialInterests\":\"No competing interests reported.\",\"formattedTitle\":\"Heat stress and workplace hazards exacerbate the socioeconomic burden of occupational hand trauma presenting to a tertiary care center in India\",\"fulltext\":[{\"header\":\"Introduction\",\"content\":\"\\u003cp\\u003eIndia is currently navigating a period of unprecedented industrial and infrastructural growth, driven by a rapidly expanding working-age population. While macroeconomic indicators reflect this progress, the human cost of this rapid industrialization frequently bypasses policy audits and materializes in the emergency departments of tertiary healthcare centers. Occupational extremity trauma, particularly complex hand injuries, represents a silent epidemic among India’s manual laborers, mechanics, and construction workers.\\u003c/p\\u003e\\n\\u003cp\\u003eHistorically, occupational health in developing nations has struggled with the legacy of implementing and auditing industrial safety standards [1]. Despite established frameworks in the organized sector, a vast proportion of the workforce operates in environments where basic ergonomic safeguards, machine guarding, and occupational health surveillance are grossly inadequate [2]. This pre-existing vulnerability is now being drastically compounded by an emerging threat multiplier: climate-driven extreme heat [3].\\u003c/p\\u003e\\n\\u003cp\\u003eRising ambient temperatures across the Indian subcontinent are no longer just an environmental concern; they are an acute occupational hazard. Prolonged exposure to unmitigated heat stress in industrial and outdoor worksites bypasses conventional safety protocols by inducing profound cognitive and motor-neuron fatigue [4]. This physiological decline compromises judgment and reflex times, directly correlating with a surge in fatigue-induced mechanical errors. Consequently, workers operating heavy machinery or navigating hazardous industrial environments are at a critically elevated risk for severe, life-altering trauma [5].\\u003c/p\\u003e\\n\\u003cp\\u003eIn surgical literature, these injuries are routinely quantified by the complexity of tissue loss and the reconstructive microsurgery required to salvage the limb. However, viewing these injuries solely through a clinical lens obscures their broader public health implications. Every crushed or amputated hand presenting to a hospital is a \\\"sentinel event\\\"—a glaring indicator of a systemic failure in workplace safety regulations and climate adaptation strategies.\\u003c/p\\u003e\\n\\u003cp\\u003eFurthermore, the true burden of occupational trauma extends far beyond the operating room. For a daily-wage laborer or a skilled mechanic, a complex hand injury initiates a cascade of socioeconomic catastrophe. Prolonged rehabilitation, residual functional impairment, and delayed return to work can plunge vulnerable families into deep financial insecurity, transforming a surgical challenge into a socio-economic crisis.\\u003c/p\\u003e\\n\\u003cp\\u003eTherefore, this study aims to recontextualize occupational extremity trauma from a public health perspective. By analyzing the demographic patterns, injury mechanisms, and functional rehabilitation timelines of industrial workers presenting to a tertiary care center in Tamil Nadu, this paper seeks to highlight the urgent socioeconomic burden of workplace hazards. Ultimately, we argue that mitigating the escalating burden on healthcare infrastructure requires a paradigm shift: moving away from reactive surgical management toward proactive, socially accountable public health interventions, strict occupational safety enforcement, and mandatory climate-adaptive worksite protocols.\\u003c/p\\u003e\"},{\"header\":\"Methods\",\"content\":\"\\u003cp\\u003e\\u003cstrong\\u003eStudy Design and Setting\\u003c/strong\\u003e\\u003c/p\\u003e\\n\\u003cp\\u003eThis study represents a secondary socio-epidemiological analysis of a prospectively collected trauma cohort. Data was gathered from patients presenting with acute hand trauma to the Department of General Surgery at Shri Sathya Sai Medical College and Research Institute, situated on the Thiruporur-Guduvanchery Highway in the Chengalpattu District of Tamil Nadu, India, between the years 2020 and 2023. While the acute surgical management, reconstructive techniques, and immediate clinical outcomes of this patient cohort are described separately in concurrent surgical literature, the present analysis uniquely evaluates the epidemiological drivers, occupational hazards, and longitudinal socioeconomic impact of the sustained injuries.\\u003c/p\\u003e\\n\\u003cp\\u003eThe institution is strategically located on the Thiruporur-Guduvanchery Highway, serving as a critical tertiary trauma center for a rapidly expanding, high-density industrial corridor. The hospital’s catchment area bridges the Old Mahabalipuram Road (OMR) infrastructure belt and the Grand Southern Trunk (GST) Road manufacturing hub—often referred to as the 'Detroit of Asia.' Consequently, the patient demographic is heavily drawn from the surrounding Tier-1 and Tier-2 automotive engineering plants, pharmaceutical manufacturing units, large-scale warehousing hubs, and the State Industries Promotion Corporation of Tamil Nadu (SIPCOT) industrial estates. This unique geographical positioning provides a highly representative sample of the occupational hazards prevalent in India’s booming semi-organized and industrial sectors.\\u003c/p\\u003e\\n\\u003cp\\u003e\\u003cstrong\\u003eData Collection and Variables\\u003c/strong\\u003e\\u003c/p\\u003e\\n\\u003cp\\u003eA total of 80 patients were included in the cohort. For this socio-epidemiological analysis, data extraction focused on demographic and occupational variables rather than anatomical zones of injury. Key variables included patient age, sex, primary occupation, and the specific mechanism/mode of injury (e.g., road traffic accidents, sharp instrument lacerations, blunt-force crush injuries).\\u003c/p\\u003e\\n\\u003cp\\u003eTo quantify the socioeconomic burden and prolonged disability resulting from the trauma, two primary outcome measures were analyzed: the patient’s timeline for \\\"Return to Work\\\" (RTW), serving as a proxy for economic inactivity and wage loss, and the QuickDASH-9 (Disabilities of the Arm, Shoulder, and Hand) score at the time of discharge, utilized to measure residual functional impairment upon reentry into society [7].\\u003c/p\\u003e\"},{\"header\":\"Results\",\"content\":\"\\u003cp\\u003e\\u003cstrong\\u003eDemographic Profile and Vulnerable Occupations\\u003c/strong\\u003e\\u003c/p\\u003e\\n\\u003cp\\u003eA total of 80 patients presenting with traumatic hand injuries were analyzed in this study. The cohort was predominantly male (62.5%, n=50), with a mean age of 31.2 years (SD ± 10.0). This demographic clustering underscores a critical public health observation: occupational extremity trauma disproportionately affects the prime working-age population, thereby maximizing the potential loss of economic productivity for affected households.\\u003c/p\\u003e\\n\\u003cp\\u003eAnalysis of occupational distribution revealed that a significant proportion of the injuries occurred among workers engaged in manual or physically intensive labor. Construction workers constituted the single largest occupational group in the cohort (22.5%, n=18), followed by individuals engaged in household and informal labor (21.2%, n=17), as well as mechanics, drivers, and sanitation workers. This distribution highlights the disproportionate vulnerability of the unorganized and semi-organized sectors, where occupational health surveillance and ergonomic safety standards are often inadequate or entirely absent (Table 1).\\u003c/p\\u003e\\n\\u003cp\\u003eTable 1: Demographic Profile and Occupational Distribution (n = 80)\\u003c/p\\u003e\\n\\u003ctable border=\\\"1\\\" cellspacing=\\\"0\\\" cellpadding=\\\"0\\\" width=\\\"602\\\"\\u003e\\n \\u003ctbody\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eVariable\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eFrequency (n)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003ePercentage (%)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eAge (years)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eMean ± SD\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e31.2 ± 10.0\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e-\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eSex\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eMale\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e50\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e62.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eFemale\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e30\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e37.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eOccupational Sector\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eConstruction Laborer\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e18\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e22.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eHousewife / Informal Household Labor\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e17\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e21.2%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eEngineer (Various fields)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e8\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e10.0%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eHealthcare (Doctor/Nurse)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e11\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e13.7%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eStudent\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e6\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e7.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eService / Transport (Chef, Kitchen, Driver)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e7\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e8.8%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eMechanic\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3.8%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eIT / Software Engineer\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3.8%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eTeacher\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3.8%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eSanitation Worker\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e2\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e2.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eRetired\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e2\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e2.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003c/tbody\\u003e\\n\\u003c/table\\u003e\\n\\u003cp\\u003e\\u003cstrong\\u003ePatterns of Trauma and Worksite Hazards\\u003c/strong\\u003e\\u003c/p\\u003e\\n\\u003cp\\u003eInstead of evaluating injuries solely by anatomical zones, mechanisms of injury were assessed to identify specific environmental and occupational hazards. Road Traffic Accidents (RTAs) were the most prevalent cause of injury (36.25%, n=29), affecting a wide cross-section of workers, including construction laborers, mechanics, and drivers. This reflects not only occupational transit hazards but also the potential role of fatigue and heat stress in commuting accidents among wage laborers.\\u003c/p\\u003e\\n\\u003cp\\u003eOur analysis of injury mechanisms further substantiates the lack of environmental safeguards in these sectors. The high prevalence of sharp lacerations and heavy blunt-force crush injuries among manual laborers points directly to an absence of functional machine guarding, a finding highly consistent with the dense concentration of automotive component manufacturing and heavy engineering units within the hospital's immediate geographical catchment. Direct occupational and environmental hazards accounted for the majority of the remaining trauma. Sharp object lacerations (knives and glass) constituted 37.5% (n=30) of the total injuries, frequently sustained by construction workers, software engineers, and informal laborers. Furthermore, blunt-force crush injuries (categorized primarily under heavy door/structural impacts) accounted for 13.75% (n=11) of presentations. Notably, among the highly vulnerable construction cohort, crush injuries and sharp lacerations were the most common mechanisms of trauma, pointing to a severe lack of personal protective equipment (PPE) and worksite structural safety (Table 2).\\u003c/p\\u003e\\n\\u003cp\\u003eTable 2: Mechanism of Worksite and Environmental Hazards (n = 80)\\u003c/p\\u003e\\n\\u003ctable border=\\\"1\\\" cellspacing=\\\"0\\\" cellpadding=\\\"0\\\" width=\\\"602\\\"\\u003e\\n \\u003ctbody\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eMode of Injury\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eFrequency (n)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003ePercentage (%)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003ePrimary Affected Occupations\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eRoad Traffic Accident (RTA)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e29\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e36.3%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eHousewife (6), Construction (4), Engineer (4), Nurse (4)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eSharp Instrument (Knife)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e18\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e22.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eConstruction (4), Housewife (3), Healthcare (3)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eSharp Laceration (Glass)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e12\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e15.0%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eHousewife (5), Construction (3), Student (3)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eBlunt-Force Crush (Heavy Door/Structure)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e11\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e13.8%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eConstruction (4), Housewife (3)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eBlast / Firecracker\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e6\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e7.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eConstruction (2)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eAssault\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e4\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e5.0%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eChef (2)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003c/tbody\\u003e\\n\\u003c/table\\u003e\\n\\u003cp\\u003e\\u003cstrong\\u003eThe Socioeconomic and Functional Burden:\\u003c/strong\\u003e \\u003cstrong\\u003eProlonged Disability\\u003c/strong\\u003e\\u003c/p\\u003e\\n\\u003cp\\u003eTo quantify the socioeconomic impact of these injuries, the timeline for \\\"Return to Work\\\" (RTW) was utilized as a proxy for economic inactivity. The data revealed a substantial burden of prolonged wage loss among the cohort. More than forty percent of the patients faced severe economic disruption: 26.25% (n=21) were economically inactive for 1 to 2 months, and 16.25% (n=13) were unable to return to work for more than 2 months. Only a quarter of the patients (25.0%, n=20) were able to resume work within 1 to 2 weeks of their injury (Table 3).\\u003c/p\\u003e\\n\\u003cp\\u003eTable 3: Socioeconomic Impact: Return to Work and Residual Disability.\\u003c/p\\u003e\\n\\u003ctable border=\\\"1\\\" cellspacing=\\\"0\\\" cellpadding=\\\"0\\\" width=\\\"602\\\"\\u003e\\n \\u003ctbody\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eReturn to Work (RTW) Timeline\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eFrequency (n)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003ePercentage (%)\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eMean QuickDASH-9 Score on Discharge*\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e1 to 2 Weeks\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e20\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e25.0%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e10.8\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e3 to 4 Weeks\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e26\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e32.5%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e29.3\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e1 to 2 Months\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e21\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e26.3%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e44.9\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003ctr\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003eMore than 2 Months\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e13\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e16.3%\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003ctd valign=\\\"top\\\"\\u003e\\n \\u003cp\\u003e48.9\\u003c/p\\u003e\\n \\u003c/td\\u003e\\n \\u003c/tr\\u003e\\n \\u003c/tbody\\u003e\\n\\u003c/table\\u003e\\n\\u003cp\\u003e*Higher QuickDASH-9 scores indicate greater residual functional disability and physical impairment.\\u003c/p\\u003e\\n\\u003cp\\u003eThis extended absence from the workforce correlated directly with severe residual functional impairment, measured by the QuickDASH-9 scoring system at the time of discharge. Patients who were able to return to work rapidly (1 to 2 weeks) demonstrated minimal residual disability, with a mean QuickDASH score of 10.8. In stark contrast, patients requiring 1 to 2 months of rehabilitation exhibited a mean QuickDASH score of 44.8, while those incapacitated for more than 2 months recorded a severe mean functional impairment score of 48.9. This direct correlation demonstrates that complex occupational hand trauma does not merely require acute surgical intervention; it results in a prolonged, debilitating phase of functional limitation that severely compromises the worker's earning capacity and traps vulnerable families in cycles of medical-related financial distress.\\u003c/p\\u003e\"},{\"header\":\"Discussion\",\"content\":\"\\u003cp\\u003eThe findings of this study underscore a critical, yet frequently overlooked, reality in India’s rapid industrial expansion: complex occupational hand trauma is not merely a surgical challenge, but a profound public health crisis. The demographic and occupational distribution of our cohort—predominantly young males engaged in manual labor, construction, and informal industrial sectors—highlights a severe structural vulnerability within the workforce. When a young construction worker or mechanic presents to a tertiary care emergency department with a severe crush injury or mechanical amputation, it must be viewed as a \\\"sentinel event.\\\" Such injuries are rarely isolated accidents; rather, they are the terminal, visible endpoints of cascading failures in occupational safety regulations, worksite ergonomics, and labor protections.\\u003c/p\\u003e\\n\\u003cp\\u003eOur analysis of injury mechanisms further substantiates the lack of environmental safeguards in these sectors. The high prevalence of sharp lacerations and heavy blunt-force crush injuries among manual laborers points directly to an absence of functional machine guarding and mandatory PPE. Furthermore, the substantial proportion of injuries resulting from RTAs among this demographic suggests that occupational hazards extend beyond the immediate worksite. For the daily wage earner, the grueling combination of physically exhausting labor and inadequate transit safety creates a continuous continuum of risk. Viewing these injury patterns through an epidemiological lens reveals that the current tertiary healthcare infrastructure is disproportionately bearing the burden of primary preventative failures in the industrial and unorganized sectors.\\u003c/p\\u003e\\n\\u003cp\\u003eWhile the structural deficits in India’s occupational safety framework are well-documented, the acute surge in complex extremity trauma must also be contextualized within the escalating climate crisis [3]. Recent socio-epidemiological paradigms have increasingly identified rising ambient temperatures as a severe occupational hazard, particularly for outdoor laborers and industrial workers in poorly ventilated environments. However, the discourse frequently limits \\\"heat-related illness\\\" to direct physiological thermal conditions, such as heatstroke or severe dehydration.\\u003c/p\\u003e\\n\\u003cp\\u003eThe injury patterns observed in our cohort necessitate a broader diagnostic lens: unmitigated heat stress acts as a profound catalyst for traumatic injury through the induction of cognitive and motor-neuron fatigue [4]. Prolonged exposure to extreme heat, coupled with the rigorous physical demands of manual labor and construction, accelerates cognitive decline. This physiological fatigue significantly compromises hazard perception, delays reflex times, and impairs critical decision-making abilities.\\u003c/p\\u003e\\n\\u003cp\\u003eConsequently, a worker operating heavy industrial machinery or navigating a high-risk construction site under severe thermal stress is highly susceptible to fatigue-induced mechanical errors [5]. The high incidence of severe crush injuries and sharp-force trauma observed in this study is likely exacerbated by this phenomenon. The cognitive inability to safely operate equipment or adhere to complex safety protocols—even when such protocols nominally exist—transforms a predictable environmental stressor into a devastating surgical emergency. Therefore, occupational extremity trauma must be recognized not solely as an accident of mechanics, but as a critical, indirect consequence of climate vulnerability among the labor force.\\u003c/p\\u003e\\n\\u003cp\\u003eFinally, the true magnitude of this crisis is captured not in the operating theater, but in the prolonged socioeconomic disruption that follows the initial trauma. For the demographic represented in this cohort—primarily daily-wage earners and informal sector workers—the RTW timeline serves as a critical indicator of economic survival. With over forty percent of the patients experiencing a workforce absence exceeding one month, and a significant subset facing incapacitation for over two months, the financial implications for these households are catastrophic. This prolonged economic inactivity is inextricably linked to severe residual functional impairment, as evidenced by the high QuickDASH-9 scores [7] recorded at discharge for these individuals. Consequently, a complex occupational injury initiates a vicious cycle of medical-related debt and loss of livelihood, effectively transforming a preventable workplace hazard into a catalyst for deep socioeconomic distress.\\u003c/p\\u003e\\n\\u003cp\\u003eAddressing this escalating burden necessitates a definitive paradigm shift from reactive surgical management to proactive, upstream public health policy. Tertiary healthcare infrastructure cannot continue to function as the sole safety net for industrial negligence and climate vulnerability. Primary prevention strategies must be aggressively enforced across both semi-organized and unorganized sectors. This requires the mandatory implementation of functional machine guarding, the provision of targeted PPE, and the establishment of robust, accessible occupational health surveillance.\\u003c/p\\u003e\\n\\u003cp\\u003eCrucially, as ambient temperatures continue to rise, traditional occupational safety frameworks must evolve to integrate mandatory climate-adaptive protocols [6]. Mitigating the risk of fatigue-induced mechanical errors requires the implementation of strict heat-action plans, including enforced rest-hydration cycles and strategically timed work shifts, specifically tailored for high-risk industrial, mechanical, and construction sites. Furthermore, comprehensive social safety nets and expedited worker’s compensation mechanisms are imperative to support vulnerable families during the critical, prolonged rehabilitation phase.\\u003c/p\\u003e\"},{\"header\":\"Conclusion:\",\"content\":\"\\u003cp\\u003eThe escalating incidence of complex occupational extremity trauma in India’s industrial and unorganized sectors can no longer be treated merely as a burden on surgical infrastructure. As this study demonstrates, these injuries are critical sentinel events that expose severe, systemic deficits in both workplace safety and climate adaptation. For vulnerable manual laborers, the trauma extends far beyond the acute physical injury, precipitating a devastating cascade of prolonged functional disability and severe economic disruption.\\u003c/p\\u003e\\n\\u003cp\\u003eFurthermore, traditional frameworks of occupational health must urgently expand to recognize unmitigated heat stress not just as an environmental discomfort, but as a primary catalyst for cognitive fatigue and subsequent mechanical trauma. As ambient temperatures rise, the intersection of climate vulnerability and hazardous manual labor creates a compounding threat to workforce survival.\\u003c/p\\u003e\\n\\u003cp\\u003eTo protect the prime working-age population, public health authorities and policymakers must fundamentally transition from reactive medical management to proactive, socially accountable interventions [8]. This necessitates the strict enforcement of functional machinery guards, the provision of targeted personal protective equipment, and the implementation of mandatory, climate-adaptive labor practices—such as enforced hydration and rest-cycle protocols in high-risk environments [6]. Ultimately, mitigating this profound socioeconomic burden requires ensuring that the rapid pace of industrial progress is no longer subsidized by the physical and financial ruin of its most vulnerable laborers.\\u003c/p\\u003e\"},{\"header\":\"Abbreviations\",\"content\":\"\\u003cdiv class=\\\"DefinitionList\\\"\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eGST\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eGrand Southern Trunk\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eIT\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eInformation Technology\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eOMR\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eOld Mahabalipuram Road\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003ePPE\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003ePersonal Protective Equipment\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eQuickDASH-9\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eQuick Disabilities of the Arm, Shoulder, and Hand (9-item shortened version)\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eRTA\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eRoad Traffic Accident\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eRTW\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eReturn to Work\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eSD\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eStandard Deviation\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003cdiv class=\\\"DefinitionListEntry\\\"\\u003e \\u003cdiv class=\\\"Term\\\"\\u003eSIPCOT\\u003c/div\\u003e \\u003cdiv class=\\\"Description\\\"\\u003e \\u003cp\\u003eState Industries Promotion Corporation of Tamil Nadu\\u003c/p\\u003e \\u003c/div\\u003e \\u003c/div\\u003e \\u003c/div\\u003e\"},{\"header\":\"Declarations\",\"content\":\"\\u003cp\\u003eClinical trial number: not applicable.\\u003c/p\\u003e\\n\\u003cp\\u003eEthical Approval and accordance: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Ethical approval for this study was obtained from the Institutional Ethics Committee (IEC No.: 2021/645, IEC Meeting No.: 39) of Shri Sathya Sai Medical College and Research Institute.\\u003c/p\\u003e\\n\\u003cp\\u003eConsent to participate: Informed consent was obtained from all individual participants included in the study.\\u003c/p\\u003e\\n\\u003cp\\u003eConsent for publication: Not applicable. (No identifying individual participant data, images, or videos are included in this manuscript).\\u003c/p\\u003e\\n\\u003cp\\u003eAvailability of data and materials: The datasets generated and/or analyzed during the current study are not publicly available to protect patient confidentiality but are available from the corresponding author on reasonable request.\\u003c/p\\u003e\\n\\u003cp\\u003eCompeting interests: The authors declare that they have no competing interests. Disclosure of Secondary Analysis: The authors transparently declare that this manuscript represents a secondary socio-epidemiological analysis of a prospectively collected trauma cohort. The acute surgical management and immediate clinical outcomes of this cohort are the subject of a separate clinical evaluation. The current manuscript uniquely addresses the public health, socioeconomic, and occupational drivers of these injuries.\\u003c/p\\u003e\\n\\u003cp\\u003eFunding: The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.\\u003c/p\\u003e\\n\\u003cp\\u003eAuthors' contributions: A.L. conceptualized the secondary public health analysis, extracted the socioeconomic data, interpreted the findings regarding occupational hazards and functional disability, and drafted the primary manuscript. R.K.S. provided critical institutional supervision, contributed to the interpretation of the clinical and epidemiological data, and critically reviewed the manuscript for important intellectual content. Both authors read and approved the final manuscript.\\u003c/p\\u003e\\n\\u003cp\\u003eAcknowledgements: Not applicable.\\u003c/p\\u003e\"},{\"header\":\"References\",\"content\":\"\\u003col\\u003e\\u003cli\\u003e\\u003cspan\\u003eAhasan R. Legacy of implementing industrial health and safety in developing countries. J Physiol Anthropol Appl Hum Sci. 2001;20(6):311\\u0026ndash;9. \\u003cspan class=\\\"ExternalRef\\\"\\u003e\\u003cspan class=\\\"RefSource\\\"\\u003ehttps://doi.org/10.2114/jpa.20.311\\u003c/span\\u003e\\u003cspan address=\\\"10.2114/jpa.20.311\\\" targettype=\\\"DOI\\\" class=\\\"RefTarget\\\"\\u003e\\u003c/span\\u003e\\u003c/span\\u003e.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eLoewenson R. Globalization and occupational health: a perspective from southern Africa. Bull World Health Organ. 2001;79(9):863\\u0026ndash;8.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eMarinaccio A, Gariazzo C, Taiano L, Bonafede M, Martini D, D'Amario S, de'Donato F, Morabito M, Worklimate working group. Climate change and occupational health and safety. Risk of injuries, productivity loss and the co-benefits perspective. Environ Res. 2025;269:120844. \\u003cspan class=\\\"ExternalRef\\\"\\u003e\\u003cspan class=\\\"RefSource\\\"\\u003ehttps://doi.org/10.1016/j.envres.2025.120844\\u003c/span\\u003e\\u003cspan address=\\\"10.1016/j.envres.2025.120844\\\" targettype=\\\"DOI\\\" class=\\\"RefTarget\\\"\\u003e\\u003c/span\\u003e\\u003c/span\\u003e.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eShannon B, Abasilim C, Friedman LS. Emergent occupational injuries presenting to hospital during increasing and extreme heat days in Illinois (USA). Int J Biometeorol. 2025;69:975\\u0026ndash;87. \\u003cspan class=\\\"ExternalRef\\\"\\u003e\\u003cspan class=\\\"RefSource\\\"\\u003ehttps://doi.org/10.1007/s00484-025-02871-1\\u003c/span\\u003e\\u003cspan address=\\\"10.1007/s00484-025-02871-1\\\" targettype=\\\"DOI\\\" class=\\\"RefTarget\\\"\\u003e\\u003c/span\\u003e\\u003c/span\\u003e.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eBrooks K, Landeg O, Kovats S, Sewell M, O'Connell E. Heatwaves, hospitals and health system resilience in England: a qualitative assessment of frontline perspectives from the hot summer of 2019. BMJ Open. 2023;13(3):e068298. \\u003cspan class=\\\"ExternalRef\\\"\\u003e\\u003cspan class=\\\"RefSource\\\"\\u003ehttps://doi.org/10.1136/bmjopen-2022-068298\\u003c/span\\u003e\\u003cspan address=\\\"10.1136/bmjopen-2022-068298\\\" targettype=\\\"DOI\\\" class=\\\"RefTarget\\\"\\u003e\\u003c/span\\u003e\\u003c/span\\u003e.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eWorld Health Organization. Operational framework for building climate resilient and low carbon health systems. Geneva: World Health Organization; 2023.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eFranchignoni F, Vercelli S, Giordano A, Sartorio F, Bravini E, Ferriero G. Minimal clinically important difference of the disabilities of the arm, shoulder and hand outcome measure (DASH) and its shortened version (QuickDASH). J Orthop Sports Phys Ther. 2014;44(1):30\\u0026ndash;9. \\u003cspan class=\\\"ExternalRef\\\"\\u003e\\u003cspan class=\\\"RefSource\\\"\\u003ehttps://doi.org/10.2519/jospt.2014.4893\\u003c/span\\u003e\\u003cspan address=\\\"10.2519/jospt.2014.4893\\\" targettype=\\\"DOI\\\" class=\\\"RefTarget\\\"\\u003e\\u003c/span\\u003e\\u003c/span\\u003e.\\u003c/span\\u003e\\u003c/li\\u003e \\u003cli\\u003e\\u003cspan\\u003eBoelen C, Woollard R. Social accountability: the extra leap to excellence for educational institutions. Med Teach. 2011;33(8):614\\u0026ndash;9. \\u003cspan class=\\\"ExternalRef\\\"\\u003e\\u003cspan class=\\\"RefSource\\\"\\u003ehttps://doi.org/10.3109/0142159X.2011.590248\\u003c/span\\u003e\\u003cspan address=\\\"10.3109/0142159X.2011.590248\\\" targettype=\\\"DOI\\\" class=\\\"RefTarget\\\"\\u003e\\u003c/span\\u003e\\u003c/span\\u003e.\\u003c/span\\u003e\\u003c/li\\u003e\\u003c/ol\\u003e\"}],\"fulltextSource\":\"\",\"fullText\":\"\",\"funders\":[],\"hasAdminPriorityOnWorkflow\":false,\"hasManuscriptDocX\":true,\"hasOptedInToPreprint\":true,\"hasPassedJournalQc\":\"\",\"hasAnyPriority\":false,\"hideJournal\":false,\"highlight\":\"\",\"institution\":\"\",\"isAcceptedByJournal\":false,\"isAuthorSuppliedPdf\":false,\"isDeskRejected\":\"\",\"isHiddenFromSearch\":false,\"isInQc\":false,\"isInWorkflow\":false,\"isPdf\":false,\"isPdfUpToDate\":true,\"isWithdrawnOrRetracted\":false,\"journal\":{\"display\":true,\"email\":\"info@researchsquare.com\",\"identity\":\"discover-public-health\",\"isNatureJournal\":false,\"hasQc\":true,\"allowDirectSubmit\":false,\"externalIdentity\":\"\",\"sideBox\":\"Learn more about [Discover Public Health](https://link.springer.com/journal/12982)\",\"snPcode\":\"12982\",\"submissionUrl\":\"https://submission.springernature.com/new-submission/12982/3\",\"title\":\"Discover Public Health\",\"twitterHandle\":\"\",\"acdcEnabled\":true,\"dfaEnabled\":true,\"editorialSystem\":\"stoa\",\"reportingPortfolio\":\"Discover Series\",\"inReviewEnabled\":true,\"inReviewRevisionsEnabled\":true},\"keywords\":\"Occupational trauma, Socioeconomic burden, Heat stress, Hand injuries, Return to work, Industrial hazards, Climate adaptation, Informal labor\",\"lastPublishedDoi\":\"10.21203/rs.3.rs-9218067/v1\",\"lastPublishedDoiUrl\":\"https://doi.org/10.21203/rs.3.rs-9218067/v1\",\"license\":{\"name\":\"CC BY 4.0\",\"url\":\"https://creativecommons.org/licenses/by/4.0/\"},\"manuscriptAbstract\":\"\\u003cp\\u003eBackground: In India’s rapidly expanding industrial sector, complex occupational hand trauma represents a silent epidemic among manual laborers. Compounded by climate-driven heat stress, these injuries are critical sentinel events exposing systemic occupational safety failures. This study evaluates the socioeconomic burden, occupational drivers, and prolonged disability resulting from such trauma.\\u003c/p\\u003e\\n\\u003cp\\u003eMethods: A secondary socio-epidemiological analysis was conducted on a prospectively collected cohort of 80 patients presenting with traumatic hand injuries to a tertiary care center in Tamil Nadu between 2020 and 2023. Variables analyzed included occupational distribution, mechanisms of injury, Return to Work (RTW) timelines, and residual functional impairment (QuickDASH-9 scores).\\u003c/p\\u003e\\n\\u003cp\\u003eResults: The cohort was predominantly composed of young, prime working-age males (Mean age 31.2 ± 10.0), with construction and informal manual labor constituting the largest occupational groups. Road traffic accidents (36.25%) and direct worksite hazards (sharp lacerations and heavy crush injuries, 51.25%) drove the majority of trauma. Over 42% of the cohort faced prolonged economic inactivity, requiring more than one month to return to work. Extended absence (\\u0026gt;2 months) correlated with severe residual functional disability (mean QuickDASH score 48.9), compared to rapid workforce reentry (mean score 10.8).\\u003c/p\\u003e\\n\\u003cp\\u003eConclusion: Complex occupational extremity trauma acts as a catalyst for severe socioeconomic distress among vulnerable laborers. Mitigating this burden requires a shift from reactive surgical management to proactive, socially accountable public health policies, including mandatory machine guarding, occupational health surveillance, and climate-adaptive worksite protocols to combat heat-induced cognitive fatigue.\\u003c/p\\u003e\",\"manuscriptTitle\":\"Heat stress and workplace hazards exacerbate the socioeconomic burden of occupational hand trauma presenting to a tertiary care center in India\",\"msid\":\"\",\"msnumber\":\"\",\"nonDraftVersions\":[{\"code\":1,\"date\":\"2026-04-22 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