Lima Maria José Ferreira, Valim Marília Duarte, de Medeiros Sebastião Freitas
Department of Gynecology and Obstetrics, Júlio Muller University Hospital, Cuiabá, MT, Brazil.
School of Nursing, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil.
Rev Bras Ginecol Obstet. 2020 Jan;42(1):26-34. doi: 10.1055/s-0040-1701461. Epub 2020 Feb 27.
To assess the construct and criterion validity of the Postmenopause Sexuality Questionnaire (PMSQ).
The present methodological questionnaire validation study included postmenopausal women. The construct validity was tested by factor analysis and the criterion validity was performed using the correlation between the PMSQ and the Female Sexual Function Index (FSFI). The ROC curve was used to verify sensitivity, specificity and to determine the cutoff point of the PMSQ.
A total of 181 women with a mean age of 56.4 ± 5.7 years old were evaluated. The exploratory factor analysis showed that the PMSQ presented Kaiser test = 0.88 and χ = 3293.7 ( < 0.001), commonalities ≥ 0.5, and extraction of 9 factors with eigenvalue ≥ 1; explaining 66.3% of the total variance. The PMSQ presented factor loadings between 0.4 and 0.8. A strong correlation between the 2 questionnaires (r = 0.79; = 0.000) was shown. The cutoff point of the PMSQ was ≤ 55.5, assuming 87.9% sensitivity and 78.9% specificity ( < 0.001).
Since the PMSQ showed a strong correlation with the FSFI questionnaire, it presented good psychometric properties to assess the sexuality in postmenopausal women. Based on these results, the PMSQ could be widely tested as a specific instrument to examine the sexual function in postmenopausal women. Future studies, designed to examine the PMSQ instrument in different populations, are needed.
评估绝经后性功能问卷（PMSQ）的结构效度和效标效度。
本方法学问卷效度研究纳入了绝经后女性。通过因子分析检验结构效度，并利用PMSQ与女性性功能指数（FSFI）之间的相关性进行效标效度分析。采用ROC曲线验证敏感性、特异性并确定PMSQ的截断点。
共评估了181名平均年龄为56.4±5.7岁的女性。探索性因子分析显示，PMSQ的Kaiser检验值=0.88，χ=3293.7（<0.001），共同度≥0.5，提取出9个特征值≥1的因子；解释了总方差的66.3%。PMSQ的因子载荷在0.4至0.8之间。两项问卷之间显示出强相关性（r=0.79；=0.000）。PMSQ的截断点≤55.5，敏感性为87.9%，特异性为78.9%（<0.001）。
由于PMSQ与FSFI问卷显示出强相关性，它在评估绝经后女性性功能方面具有良好的心理测量学特性。基于这些结果，PMSQ可作为一种特定工具广泛用于检测绝经后女性的性功能。未来需要开展旨在在不同人群中检验PMSQ工具的研究。
