Table 1 Descriptive characteristics of the studies included
From: Long COVID and endometriosis: a systematic review and meta-analysis
Study | Study site | Period | Follow-up time | Population | Study design | Sample size | RR/HR, 95% CI | Reference |
|---|---|---|---|---|---|---|---|---|
Wang, 2023 | US | April to May 2020 | August 202 to November 2021 and for NHS3 participants: July 2021 to August 2022 with addendum about COVID-19 | Nurses | Cross-sectional | 3,551 | Long COVID > 4 weeks, adjusted RR = 1.22 (1.05–1.42) Long COVID > 8 weeks, adjusted RR = 1.28 (1.09–1.50), Ongoing symptoms, adjusted RR = 1.32 (1.1–1.58) | [18] |
Subramanian, 2022 | UK | February to April 2021 | Total follow-up was 0.29 years (IQR: 0.24–0.42) for the cohort of COVID-19 patients and 0.29 (IQR 0.24–0.41) for patients without COVID-19 infection. | Non-hospitalized individuals | Cross-sectional | 212,544 | unadjusted HR = 1.86 (1.81–1.90) adjusted HR = 1.52 (1.48–1.56) | [9] |