Psychometric properties of the Iranian version of the Sexual Quality of Life Scale among women.

INTRODUCTION.: Female sexual dysfunction has a known impact on the quality of life. AIM.: The purpose of this study was the translation and validation of an Iranian version of the Sexual Quality of Life questionnaire-Female (SQOL-F) in Iranian women. METHODS.: A population sample of N = 2,675 women aged 17-67 years from Qazvin City of Iran and two clinical population samples (women with sexual dysfunctions N = 295 and women with type 2 diabetes N = 449) participated in the study. A self-constructed demographic questionnaire, the SQOL-F, the Short Form Health Survey (SF-36), and the Female Sexual Function Index (FSFI) were used for data collection. MAIN OUTCOME MEASURES.: Internal consistency and test-retest reliability were examined. Correlations between the SQOL-F, SF-36, and FSFI were assessed with convergent validity. Furthermore, known-groups comparison analysis was conducted to compare differences in SQOL-F scores between healthy women and those with sexual problems and diabetes. Confirmatory factor analysis assessed the factor structure of the SQOL-F. RESULTS.: Cronbach's alpha ranged from 0.84 to 0.98. Significant correlations between the SQOL-F, SF-36, and FSFI scores were found (ranging from r = 0.4 to r = 0.72). The SQOL-F scores were significantly different between women with and without a clinical condition (P < 0.05). A unifactorial model provided the best fit to the data. CONCLUSION.: The questionnaire represents a suitable measure to assess sexuality-related quality of life to sexual function in healthy women, as well as in women suffering from a chronic medical condition. Application of the scale to other clinical samples needs to be further explored.