Chelsea & Westminster Hospital, HIV/GUM Directorate, St Stephen's Centre, London, UK.
J Sex Med. 2010 Feb;7(2 Pt 1):769-74. doi: 10.1111/j.1743-6109.2009.01579.x. Epub 2009 Nov 12.
Erectile dysfunction is common in HIV-positive men who have sex with men (MSM). A standardized scale is needed to assess erectile function in clinical practice and research studies.
The International Index of Erectile Function (IIEF) is a widely accepted tool for assessing erectile function designed for heterosexual men. We modified the tool for MSM. We present an analysis of internal consistency of the questionnaire in an HIV-positive cohort.
The adapted questionnaire included modified questions within each of the five domains of the IIEF: (i) erectile function, (ii) intercourse satisfaction, (iii) orgasmic function, (iv) sexual desire, and (v) overall satisfaction with sex. MSM at seven European HIV treatment centers completed the questionnaire.
Responses were analyzed for internal consistency using standardized Cronbach's alpha values within each of the five domains. A factor analysis was performed to confirm the domain structure of the questionnaire.
Data from 486 MSM were analyzed. The factor analysis supported the domain structure described. Questions about erectile function, orgasmic function, and sexual desire performed well, with Cronbach's alpha values of 0.82, 0.83, and 0.89, respectively. Questions concerning intercourse satisfaction were less consistent (Cronbach's alpha 0.55) because frequency of attempts at sexual intercourse did not correlate with other responses. Responses about satisfaction with sex with a regular partner diverged from satisfaction with overall sex life. Frequency of morning erections diverged from other aspects of erectile function, whereas erections with masturbation correlated better.
Internal consistency was high overall. This tool is suitable for HIV-positive MSM and can be used in screening, research, and monitoring treatment response.
勃起功能障碍在与男性发生性关系的 HIV 阳性男性中很常见。在临床实践和研究中需要使用标准化量表来评估勃起功能。
国际勃起功能指数（IIEF）是一种广泛用于评估异性恋男性勃起功能的工具。我们对其进行了修改，使其适用于男男性接触者（MSM）。我们报告了在 HIV 阳性队列中对问卷进行内部一致性分析的结果。
改良问卷包括 IIEF 的五个领域（i）勃起功能、（ii）性交满意度、（iii）性高潮功能、（iv）性欲和（v）总体性满意度）内修改后的问题。来自欧洲七个 HIV 治疗中心的 MSM 完成了问卷。
使用每个领域内的标准化 Cronbach's alpha 值对五个领域内的反应进行内部一致性分析。进行了因子分析以确认问卷的结构。
分析了 486 名 MSM 的数据。因子分析支持所描述的领域结构。关于勃起功能、性高潮功能和性欲的问题表现良好，Cronbach's alpha 值分别为 0.82、0.83 和 0.89。关于性交满意度的问题一致性较差（Cronbach's alpha 0.55），因为性尝试的频率与其他反应没有相关性。与规律伴侣的性满意度与总体性生活满意度不同。晨勃频率与其他勃起功能方面不同，而自慰时的勃起与其他方面相关性更好。
整体而言，内部一致性较高。该工具适用于 HIV 阳性 MSM，可用于筛查、研究和监测治疗反应。
