Predictors of reported transmission risk behaviors post HIV diagnosis in an HIV+ sample receiving care in Tijuana, Mexico

TL;DRAbstract

Determinants of risk behavior responses immediately following HIV diagnosis\nremain poorly understood. Literature reviews indicate a persistent failure to apply\nscientific rigor and theory to this field. Two empirical studies were conducted following a\nbehavioral ecological model. Using interview and clinical chart data from a 2005 study\nof determinants of late HIV testing in Tijuana, analyses were conducted with two\nsamples: 108 men who have sex with men (MSM), and 150 heterosexual men (n=64) and women (n=86). Potential predictors were selected from pre-diagnosis data and\ntested in a logistic regression model predicting sexual risk reduction after diagnosis.\nNearly 40% of MSM remained at moderate to high risk for sexual transmission.\nThe model significantly explained an estimated 28.4% (Nagelkerke R_) of the variance in\nsexual risk reduction from pre- to post-diagnosis, x_(9, N=106)=24.93, p<0.01. Significant\nindependent predictors of decreased sexual risk behavior (p<0

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