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Health-related quality of life in women with endometriosis: a systematic review.

ABSTRACT: Endometriosis has critical implications for women's quality of life. However, an overview of the current knowledge of this issue is limited. The objective of this systematic review was to determine the extent of endometriosis and its treatment upon women's health-related quality of life (HRQoL). PubMed, Embase, PsycoINFO, CINAHL and the Cochrane Clinical Trials were searched up to May 2012, and only studies using standardized instruments to evaluate HRQoL in women with endometriosis were selected. Our electronic searches identified 591 citations, of which 39 studies satisfied the inclusion criteria including nine qualitative studies and 30 treatment-related studies. Findings showed that endometriosis impaired women's HRQoL. Pain was strongly related to a poor HRQoL, and medical or surgical treatment could partially restore this impairment. No conclusive evidence was available on whether endometriosis imposed an additional impairment in HRQoL per se, apart from the decrease caused by chronic pelvic pain, or on the superiority of various hormonal suppression agents. The impacts of disease extent, duration and fertility status upon HRQoL were inconsistent. In summary, HRQoL was impaired in women with endometriosis, and medical or surgical treatment to alleviate pain could partially restore this impairment.

SUBMITTER: Jia SZ

PROVIDER: S-EPMC3507705 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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Health-related quality of life in women with endometriosis: a systematic review.

Jia Shuang-Zheng SZ Leng Jin-Hua JH Shi Jing-Hua JH Sun Peng-Ran PR Lang Jing-He JH

Journal of ovarian research 20121018 1

Endometriosis has critical implications for women's quality of life. However, an overview of the current knowledge of this issue is limited. The objective of this systematic review was to determine the extent of endometriosis and its treatment upon women's health-related quality of life (HRQoL). PubMed, Embase, PsycoINFO, CINAHL and the Cochrane Clinical Trials were searched up to May 2012, and only studies using standardized instruments to evaluate HRQoL in women with endometriosis were selecte ...[more]

PMID: 23078813

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Project description:Study questionWhich of the competing models of the Endometriosis Health Profile 30 Questionnaire (EHP-30) factor structure is best supported by confirmatory factor analysis (CFA)?Summary answerFindings support a five-factor first-order model of the EHP-30, thereby lending support to the model originally suggested by the questionnaire developers.What is known alreadyEndometriosis has a negative impact on quality of life, and measures specifically developed to address this impact, such as the EHP-30, are vital in research and disease management. Previous studies have found different models of the EHP-30 factor structure, and generated uncertainty regarding how to use the questionnaire. CFA can be applied to compare competing factor models and determine the underlying structure of a questionnaire.Study design size durationThis cross-sectional multicenter study included 304 women with endometriosis recruited from three different public health service endometriosis clinics (referral centers for treatment of severe endometriosis) and the Danish Endometriosis Patients Association from 2014 to 2015.Participants/materials setting methodsDiagnosis of endometriosis was confirmed in medical records for 84.2% and by histology for 66.8% of participants. Questionnaires (the licensed Danish version of the EHP-30) were sent by post two times with a 6- to 12-week interval. CFA was used to examine construct validity and Bland-Altman plots to examine test-retest reliability and the convergent validity with the Short Form 36 version 2.Main results and the role of chanceResponse rate was high (87.6%). CFA supported the original first-order five-factor structure of the EHP-30, and thereby, the use of five separate scale-scores in clinical and research practice. Visual inspection of Bland-Altman plots suggested excellent test-retest reliability of the EHP-30 and supported the use of a disease specific quality of life instrument for women with endometriosis.Limitations reasons for cautionDiagnosis could not be confirmed through histology data in 33.2% of participants. However, subgroup analyses based on women with confirmed histology only, yielded similar results. Data related to menstrual cycle stage and the use of hormonal and pain medication during questionnaire completion were not collected. A larger study, including data from different countries on different continents, would be better designed to exclude potential population bias.Wider implications of the findingsEHP-30, with its original five-factor structure, appears to be a valid, stable, and specific quality of life measure for women with endometriosis. It seems easy to understand, quick to administer, and importantly, scoring might be unaffected by cyclical/menstrual pain symptoms related to endometriosis. The finding of a five-factor model from different studies across several countries supports the crosscultural validity of the EHP-30.Study funding/competing interestsThis work was supported by the Danish Endometriosis Association, which is a nongovernmental organization run by women with endometriosis and by a scholarship from the Health Research Fund of Central Denmark Region. The authors have no conflicts of interest.Trial registration numberThe Danish Data Protection Agency (J.nr: 2013-41-2264).

Project description:ObjectiveTo evaluate the effects of elagolix on clinically meaningful improvements in health-related quality of life (HRQOL) measured by the EHP-30 (Endometriosis Health Profile-30).MethodsData from two phase III trials of elagolix for moderate to severe pain associated with endometriosis were pooled and analyzed as three groups: placebo, elagolix 150 mg once daily, or elagolix 200 mg twice daily. Patients were administered the EHP-30 questionnaire at baseline, and at months 1, 3, and 6 of treatment. Previously established responder definitions were applied to determine percentages of patients with clinically meaningful EHP-30 improvements. The probability of meeting EHP-30 responder definitions with elagolix compared with placebo at months 3 and 6 was determined by Poisson regression analysis, controlling for baseline scores.ResultsAt month 6, the probabilities of meeting EHP-30 subscale responder definitions for pain, control and powerlessness, self-image, social support, emotional well-being, and sexual intercourse were 169% (adjusted relative risk [aRR]: 2.69, 95% CI 2.26-3.21), 129% (aRR 2.29, 95% CI 1.96-2.67), 80% (aRR 1.80, 95% CI 1.54-2.11), 70% (aRR 1.70, 95% CI 1.47-1.97), 67% (aRR 1.67, 95% CI 1.45-1.92), and 62% (aRR 1.62, 95% CI 1.36-1.92) greater, respectively (all P<.001), in the 200-mg group than in the placebo group. Although lower in magnitude than the 200-mg group, the 150-mg group also had greater probabilities of meeting responder definitions than the placebo group for all subscales except sexual intercourse. The probabilities of meeting responder definitions for pain, control and powerlessness, self-image, social support, and emotional well-being were 75% (aRR 1.75, 95% CI 1.44-2.14), 50% (aRR 1.50, 95% CI 1.25-1.80), 22% (aRR 1.22, 95% CI 1.01-1.47), 30% (aRR 1.30, 95% CI 1.09-1.53), and 35% (aRR 1.35, 95% CI 1.16-1.57) greater, respectively (all P<.05), in the 150-mg group than in the placebo group.ConclusionPatients with moderate to severe pain associated with endometriosis and were treated with elagolix experienced clinically meaningful HRQOL improvements.Clinical trial registrationClinicalTrials.gov, NCT01620528 and NCT01931670.Funding sourceAbbVie Inc.

Dataset Information

Health-related quality of life in women with endometriosis: a systematic review.

Publications

Health-related quality of life in women with endometriosis: a systematic review.

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