Department of Community Medicine and Health Care,University of Connecticut School of Medicine, Farmington,CT 06030, USA.
Health Psychol. 2013 Aug;32(8):860-8. doi: 10.1037/a0030554. Epub 2013 Mar 11.
The current study applied the Information-Motivation-Behavioral Skills (IMB) model (Fisher & Fisher, 1992; Fisher & Fisher, 1993) to identify factors associated with human immunodeficiency virus (HIV) transmission risk behavior among HIV-infected South Africans receiving antiretroviral therapy (ART), a population of considerable significance for curtailing, or maintaining, South Africa's generalized HIV epidemic.
HIV prevention information, HIV prevention motivation, HIV prevention behavioral skills, and HIV transmission risk behavior were assessed in a sample of 1,388 South Africans infected with HIV and receiving ART in 16 clinics in KwaZulu-Natal, South Africa.
Findings confirmed the assumptions of the IMB model and demonstrated that HIV prevention information and HIV prevention motivation work through HIV prevention behavioral skills to affect HIV transmission risk behavior in this population. Subanalyses confirmed these relationships for HIV transmission risk behavior overall and for HIV transmission risk behavior with partners perceived to be HIV-negative or HIV-status unknown. A consistent pattern of gender differences showed that for men, HIV prevention information and HIV prevention motivation may have direct links with HIV preventive behavior, whereas for women, the effect of HIV prevention motivation works through HIV prevention behavioral skills to affect HIV preventive behavior.
These IMB model-based findings suggest directions for HIV prevention interventions with South African men and women living with HIV and on ART as an important component of overall strategies to contain South Africa's generalized HIV epidemic.
本研究应用信息-动机-行为技能（IMB）模型（Fisher & Fisher，1992；Fisher & Fisher，1993），以确定与接受抗逆转录病毒疗法（ART）的南非艾滋病毒感染者（HIV）传播风险行为相关的因素，这一人群对于遏制或维持南非普遍存在的 HIV 流行至关重要。
在南非夸祖鲁-纳塔尔省的 16 个诊所中，对 1388 名接受 HIV 感染和 ART 治疗的南非人进行了 HIV 预防信息、HIV 预防动机、HIV 预防行为技能和 HIV 传播风险行为评估。
研究结果证实了 IMB 模型的假设，并表明 HIV 预防信息和 HIV 预防动机通过 HIV 预防行为技能影响该人群的 HIV 传播风险行为。亚分析证实了这些关系，适用于总体 HIV 传播风险行为以及与被认为 HIV 阴性或 HIV 状态未知的伴侣发生 HIV 传播风险行为。性别差异的一致模式表明，对于男性而言，HIV 预防信息和 HIV 预防动机可能与 HIV 预防行为有直接联系，而对于女性而言，HIV 预防动机的作用通过 HIV 预防行为技能影响 HIV 预防行为。
这些基于 IMB 模型的研究结果为南非 HIV 感染者和接受 ART 治疗的男性和女性提供了 HIV 预防干预的方向，是遏制南非普遍存在的 HIV 流行的整体战略的重要组成部分。
