The mediating role of social support between HIV stigma and sexual orientation-based medical mistrust among newly HIV-diagnosed gay, bisexual, and other men who have sex with men.

HIV-related stigma and medical mistrust are significant challenges to addressing HIV inequities among gay, bisexual, and other men who have sex with men (MSM). HIV-related stigma is associated with high levels of medical mistrust, but there is limited knowledge regarding the mechanisms that link these variables. We examined the potential mediating roles of social support and coping in the relationship between perceived HIV stigma and sexual orientation based-medical mistrust among newly HIV-diagnosed MSM. We hypothesized that HIV-related stigma would be associated with mistrust and that social support, and coping would mediate this relationship. Data were obtained from 202 newly HIV-diagnosed (<1 year) MSM receiving care at community HIV clinics in New York. A path model indicated that HIV stigma was directly related to greater sexual orientation based medical mistrust, and that this relationship was mediated by social support. However, coping did not mediate the relationship between HIV stigma and mistrust. Efforts to increase social support and decrease stigma are critical for strengthening relationships between MSM and HIV care networks. Future research should assess the feasibility of designing and implementing interventions focused on increasing social network support and improving trust in the medical community among newly HIV-diagnosed MSM.