ArticleBMC psychology2024
Psychometric properties of the Iranian version of the polycystic ovary syndrome quality of life questionnaire for married and unmarried women with PCOS: PCOSQoL-47 and PCOSQoL-42.
Article in BMC psychology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Abstract
introductionThe incidence of PCOS is notably elevated in Iran, making it crucial to examine the quality of life among these individuals. This study aimed to thoroughly evaluate the psychometric properties of the Iranian adaptations of the PCOSQoL-47 and PCOSQoL-42 questionnaires. The application of these tools is significant as they could enhance further research in in communities with similar social norms concerning marriage and sexuality.
methodsThis study employed a cross-sectional design. Following the linguistic validation of the Iranian adaptation of the PCOSQoL-47 and PCOSQoL-42, a panel of experts reviewed the items through an evaluation of the content validity index (CVI) and content validity ratio (CVR). Subsequently, a semi-structured interview was carried out to evaluate face validity. Consequently, discriminant validity was assessed using the known groups comparison. Convergent validity was evaluated by assessing the correlation between similar content on the PCOSQoL-47 and PCOSQoL-42, SF-12 and body image questionnaire. Responsiveness was assessed by comparing two scales scoring in baseline and eight-week follow-up data of prescription contraceptive Daine-35. In addition, reliability analyses including internal consistency and test-retest analysis were carried out.
resultsThe CVR in this study for the total scale was 0.98 for two scales, indicating a satisfactory result. The CVI for the scale was found to be 0.98 and 0.99 for PCOSQoL-42 and PCOSQoL-47, respectively suggesting that it had a good content validity. Known groups comparison revealed that the two scales effectively distinguished between sub-groups of women with varying symptoms specific to PCOS, thereby supporting their discriminant validity. Additionally, convergent validity was evaluated and, as anticipated, a strong positive correlation was observed between corresponding subscales of the two instruments. The paired t-test showed significant changes in PCOSQoL-47 and PCOSQoL-42 scores (p < 0.001) indicating as a responsive outcome measure to detect significant changes over time before and after treatment. Additional analyses indicated satisfactory results of PCOSQoL-42 for internal consistency (Cronbach's alpha ranging from 0.72 to 0.78) and intraclass correlation coefficients (ranging 0.67 to 0.92; P < 0.05). regarding PCOSQoL-47, Cronbach's alpha ranging from 0.80 to 0.82 and intraclass correlation coefficients (ranging 0.61 to 0.73; P < 0.05).
conclusionThe PCOSQoL-47 and PCOSQoL-42 have undergone thorough testing in Iran and may be utilized as outcome measures in forthcoming studies within this demographic.
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