Department of Psychiatry and Behavioral Medicine, Center for AIDS Intervention Research, The Medical College of Wisconsin, 2071 N. Summit Avenue, Milwaukee, WI, 53202, USA.
AIDS Behav. 2019 Jul;23(7):1904-1916. doi: 10.1007/s10461-018-2371-3.
Research is needed to determine targets for interventions to increase pre-exposure prophylaxis (PrEP) uptake. The Information-Motivation-Behavioral Skills (IMB) model has not been tested for PrEP use among men who have sex with men (MSM). Men and transgender women and men were surveyed at a community event in the Midwest in 2016 (N = 476, 60% White, M = 35). New measures assessed PrEP knowledge, attitudes, stigma, descriptive and subjective norms, and intentions, and participants reported on PrEP use. We tested the IMB model for a subsample of HIV-negative MSM and transgender individuals (N = 357) using structural equation modeling. Only 12% of participants used PrEP. New measures performed well and were reliable (αs = 0.83-0.94). Structural models generally supported the IMB model: knowledge, stigma, and self-efficacy were directly associated with use, and attitudes, stigma, and descriptive norms had indirect effects on use via self-efficacy. The IMB model may be useful when developing PrEP interventions for MSM.
需要开展研究，以确定针对增加暴露前预防（PrEP）使用率的干预措施的目标。信息-动机-行为技能（IMB）模型尚未在男男性行为者（MSM）中接受 PrEP 使用的测试。2016 年，在中西部的一次社区活动中对男性和跨性别女性和男性进行了调查（N=476，60%为白人，M=35）。新的措施评估了 PrEP 知识、态度、污名、描述性和主观规范以及意图，参与者报告了 PrEP 的使用情况。我们使用结构方程模型对 HIV 阴性的 MSM 和跨性别者的子样本测试了 IMB 模型（N=357）。只有 12%的参与者使用了 PrEP。新措施表现良好且可靠（αs=0.83-0.94）。结构模型普遍支持 IMB 模型：知识、污名和自我效能与使用直接相关，态度、污名和描述性规范通过自我效能对使用产生间接影响。在为 MSM 制定 PrEP 干预措施时，IMB 模型可能是有用的。
