Compliance with Oral Nutritional Supplements and Its Influencing Factors in Postoperative Patients with Digestive Tract Tumors: A Cross-Sectional Study

Background: Oral nutritional supplementation is one of the preferred methods of nutritional support for postoperative patients. This study aims to investigate the current status of oral nutritional supplement compliance in postoperative patients with diges tive tract tumors and its influencing factors. Methods Convenience sampling was employed to select 242 patients who underwent surgery for digestive tract tumors at a tertiary hospital in Shanghai from October 2022 to July 2023 as the study subjects. Data following a normal distribution were analyzed using independent sample t-tests, ANOVA single-factor analysis, Pearson correlation analysis, and multiple linear regression analysis to determine the factors influencing compliance with oral nutritional supplements. Results A total of 252 questionnaires were distributed, with 10 invalid questionnaires excluded, resulting in an effective questionnaire rate of 96.03%. The compliance score for oral nutritional supplements in postoperative patients with digestive tract tumors was (2.40 ± 1.45), General Self-efficacy Scale (GSES) score was (24.72 ± 4.86), Multidimensional Scale of Perceived Social Support Scale (MSPSS) score was (58.67 ± 11.09), and Belief about Medicines Questionnaire Scale (BMQ) score was (0.17 ± 2.78). Multiple linear regression analysis revealed that age, adverse reactions, educational level, nutrition knowledge, self-efficacy, medication beliefs, and social support were factors influencing compliance with oral nutritional supplements in postoperative patients with digestive tract tumors (p < 0.05). Conclusion Our study revealed that the compliance to oral nutritional supplements among postoperative patients with gastrointestinal tumors was at a moderate level and was closely associated with age, educational level, adverse reactions to oral nutritional supplementation, medication beliefs, social support, and self-efficacy. Nursing staff should conduct nursing assessments based on the specific circumstances of patients and their families, provide personalized health education management plans based on the patients' educational level, enhance patients' nutrition knowledge, improve patient self-efficacy, and enhance social support for patients, while further improving patient nutrition management.