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Meta-Analysis
. 2023 Apr;30(4):997-1005.
doi: 10.1007/s43032-022-01045-3. Epub 2022 Aug 1.

Endometriosis and Systemic Lupus Erythematosus: Systematic Review and Meta-analysis

João Pedro Ferrari-Souza  1   2   3 , Mirela Tschiedel Pedrotti  4 , Enrico Emerim Moretto  4 , Laura Penso Farenzena  4 , Luís Guilherme Crippa  4 , João Sabino Cunha-Filho  5
Affiliations
Meta-Analysis

Endometriosis and Systemic Lupus Erythematosus: Systematic Review and Meta-analysis

João Pedro Ferrari-Souza et al. Reprod Sci. 2023 Apr.

Abstract

Endometriosis is a chronic gynaecological condition characterized by inflammatory and immune abnormalities. Likewise, these dysfunctions are important hallmarks of systemic lupus erythematosus (SLE), a condition that also has a high prevalence among women in reproductive age. Therefore, we conducted a systematic review and meta-analysis to investigate the association between endometriosis and SLE. We searched Medline and Web of Science for articles published from database inception to March 1, 2021. Random-effects meta-analysis was performed to provide a pooled risk ratio (RR). Individual study quality was evaluated following the National Heart, Lung, and Blood Institute Quality Assessment Tools (NHLBI QAT). From the 225 articles identified through our search, five studies-assessing 152,355 women-were included. Included studies presented an overall poor or fair quality rating. We observed a significant association between endometriosis and SLE (RR = 2.47, 95% confidence interval: 1.33-4.59, P < 0.004, I2 = 54%). Sensitivity analyses stratifying articles by study design demonstrated that the association was significant in cross-sectional and case-control studies (RR = 5.07, 95% confidence interval: 1.42-18.11, P < 0.012), as well as in cohort studies (RR = 2.07, 95% confidence interval: 1.02-4.20, P < 0.044). In spite of the limited quality of included studies, our results suggest the existence of an association between endometriosis and SLE. These findings can aid medical assessment of patients with endometriosis, as well as provide further insights to better understand this gynaecological disorder.

Keywords: Endometriosis; Meta-analysis; Review; Systematic review; Systemic lupus erythematosus.

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