Psychometric Properties of the Stellenbosch Endometriosis Quality of Life (SEQOL) Among Endometriosis Patients in the United Kingdom.

Background and Purpose: We aimed to determine the reliability and validity of the Stellenbosch Endometriosis Quality of Life (SEQOL) among patients with endometriosis in the United Kingdom. Methods: We used a cross-sectional research design that featured online data collection. We administered several measures to 596 participants. Data analysis included confirmatory factor analysis, exploratory factor analysis, reliability analysis, and correlations. Results: The data did not fit the original eight-factor structure, but rather a six-factor structure. Six items were removed. The measure produced strong internal consistency reliabilities. The SEQOL also demonstrated promising validity, producing strong correlations with another health-related quality of life (HRQOL) measure. Conclusion: In summary, we conclude that the United Kingdom version of the SEQOL is a viable measure of HRQOL.