Williams C

No ORCID on file · 46 papers in corpus · active 2003-2026

Study types

  • article 28
  • other 13
  • review 1

Condition tags

  • endometriosis 39
  • chronic_pelvic_pain 29
  • dyspareunia 15
  • dysmenorrhea 9
  • infertility 7
  • endometrioma 6
  • irritable_bowel_syndrome 4
  • die_deep_infiltrating 3
  • adenomyosis 1
other 2026
Pain ·doi:10.1097/j.pain.0000000000003915

Predictive tools are lacking for pain-related outcomes after endometriosis surgery. The objective of this study was to develop and validate a machine learning-based clinical model to predict poor pain-related quality of life after endometri…

other 2026
Journal of women's health (2002) ·doi:10.1177/15409996261443813

OBJECTIVE: To characterize differences between individuals with and without mid-cycle pain in a registry cohort with endometriosis. DESIGN: Prospective analysis of data from the Endometriosis Pelvic Pain Interdisciplinary Cohort Data Regis…

article 2025
Journal of minimally invasive gynecology ·doi:10.1016/j.jmig.2025.02.009

OBJECTIVE: Endometriosis is a chronic and inflammatory condition that affects approximately 10% of the reproductive-age population. During the COVID-19 pandemic, there was a shift towards virtual care for endometriosis. Our aim was to evalu…

other 2025
Reproductive sciences (Thousand Oaks, Calif.) ·doi:10.1007/s43032-025-01947-y

Endometriosis contributes to 5-21% of hospital admissions for pelvic pain. While hormonal therapies are pivotal in managing endometriosis-related pain, no single hormonal treatment suits all patients. We aimed to assess the effectiveness an…

article 2025
The journal of pain ·doi:10.1016/j.jpain.2025.105357

There is increasing recognition that nociplastic pain and central sensitization may play a role in endometriosis-associated pain. The Pain Sensitivity Questionnaire Minor (PSQ-M) evaluates subjective widespread pain sensitivity, and is link…

other 2024
Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC ·doi:10.1016/j.jogc.2024.102443
other 2024
The journal of pain ·doi:10.1016/j.jpain.2024.01.346

To correlate pain-related phenotyping for central nervous system sensitization in endometriosis-associated pain with mental health outcomes during the COVID-19 pandemic, the prospective Endometriosis and Pelvic Pain Interdisciplinary Cohort…

other 2024
Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC ·doi:10.1016/j.jogc.2023.102246

OBJECTIVES: To prospectively evaluate pain-related quality-of-life (Endometriosis Health Profile-30 [EHP-30] pain subscale) after surgery at an interdisciplinary centre of expertise for endometriosis and pelvic pain. METHODS: A prospective…

article 2024
Human Reproduction ·doi:10.1093/humrep/deae269

STUDY QUESTION: Is there an association between the somatic loss of PTEN (phosphatase and tensin homolog) and ARID1A (AT-rich interaction domain 1A) and endometriosis disease severity and worse clinical outcomes? SUMMARY ANSWER: Somatic PT…

article 2023
JAMA network open ·doi:10.1001/jamanetworkopen.2023.0780

IMPORTANCE: A subset of people who undergo surgery for endometriosis have persistent pain, suggesting that other factors besides the endometriosis, such as central sensitization, may play a role in this pain. The Central Sensitization Inven…

article 2023
The journal of pathology. Clinical research ·doi:10.1002/cjp2.317

The clinical phenotype of somatic mutations in endometriosis is unknown. The objective was to determine whether somatic KRAS mutations were associated with greater disease burden in endometriosis (i.e. more severe subtypes and higher stage)…

article 2023
American journal of obstetrics and gynecology ·doi:10.1016/j.ajog.2023.04.040

BACKGROUND: After endometriosis surgery, pain can persist or recur in a subset of patients. A possible reason for persistent pain after surgery is central nervous system sensitization and associated pelvic pain comorbidities. Surgery addres…

2022
Human reproduction (Oxford, England) ·doi:10.1093/humrep/deac196

Study questionIs there an association between fertility status, method of conception and the risks of birth defects and childhood cancer?Summary answerThe risk of childhood cancer had two independent components: (i) method of conception and…

article 2021
Pain ·doi:10.1097/j.pain.0000000000002351

ABSTRACT: A key clinical problem is identifying the patient with endometriosis whose pain is complicated by central nervous system sensitization, where conventional gynecologic treatment (eg, hormonal therapy or surgery) may not completely …

other 2021
Journal of minimally invasive gynecology ·doi:10.1016/j.jmig.2020.05.003

STUDY OBJECTIVE: Endometriosis fertility index (EFI) is a robust tool to predict the pregnancy rate in patients with endometriosis who are attempting non-in vitro fertilization conception. However, EFI calculation requires laparoscopy. Newl…

other 2020
Journal of women's health (2002) ·doi:10.1089/jwh.2019.8008

Background: Endometriosis is a complex condition that can negatively affect a woman's quality of life, including her sleep. This study aims to assess the multifactorial variables associated with poorer quality of sleep in women with endomet…

article 2020
Human reproduction open ·doi:10.1093/hropen/hoz040

STUDY QUESTION: What are the use patterns and factors associated with combined hormonal contraception (CHC) ineffectiveness or discontinuation due to side-effects in patients with endometriosis and pelvic pain? SUMMARY ANSWER: Worse chronic…

article 2020
Sexual medicine ·doi:10.1016/j.esxm.2020.01.002

INTRODUCTION: Deep dyspareunia is a cardinal symptom of endometriosis, and as many as 40% of people with this condition experience comorbid superficial dyspareunia. AIM: To evaluate the relationship between sexual pain and infertility conce…

other 2020
Frontiers in digital health ·doi:10.3389/fdgth.2020.600604

Chronic pelvic pain affects one in seven women worldwide, and there is an urgent need to reduce its associated significant costs and to improve women's health. There are many correlated factors associated with chronic pelvic pain (CPP), and…

article 2020
The journal of sexual medicine ·doi:10.1016/j.jsxm.2019.12.019

INTRODUCTION: Deep dyspareunia, a common symptom in endometriosis, has previously been associated with bladder and/or pelvic floor tenderness (BPFT), which suggests a role for central nervous system sensitization. The Central Sensitization …

article 2019
Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC ·doi:10.1016/j.jogc.2019.08.034

ObjectiveThis study sought to identify factors independently associated with a negative impression of the medical profession in patients with endometriosis who were presenting to a tertiary referral centre.MethodsA cross-sectional analysis …

other 2019
Sexual medicine ·doi:10.1016/j.esxm.2019.03.002

INTRODUCTION: Pelvic pain and vulvar pain are common conditions in women. In this study, we sought to characterize the clinical picture of patients with concurrent pelvic pain and provoked vestibulodynia (PVD). AIM: To analyze the associat…

article 2018
Sexual medicine ·doi:10.1016/j.esxm.2018.04.006

INTRODUCTION: Deep dyspareunia occurs in half of women with endometriosis, a condition present in 10% of reproductive-age women and associated with negative effects on sexual quality of life (SQoL). However, women with endometriosis can hav…

article 2018
The journal of sexual medicine ·doi:10.1016/j.jsxm.2018.06.007

INTRODUCTION: The etiology of endometriosis-associated deep dyspareunia may include direct endometriosis-specific factors (eg, stage or invasiveness of disease) and/or indirect contributors such as bladder/pelvic floor dysfunction (eg, rela…

article 2018
Journal of minimally invasive gynecology ·doi:10.1016/j.jmig.2018.06.009

Study objectiveTo investigate ethnic differences for moderate-to-severe endometriosis.DesignAnalysis of a prospective registry (Canadian Task Force classification II-2).SettingTertiary referral center.PatientsA total of 1594 women with pelv…