Factors associated with non-adherence to antiretroviral therapy among female sex workers living with HIV in Hyderabad, India.

We determined factors associated with non-adherence (consuming <90% of monthly antiretroviral therapy) among female sex workers (FSWs). An interviewer-administered questionnaire was used in a sample of 100 South Indian FSWs living with HIV. We examined demographics, food insecurity, side effects, stigma, alcohol/substance use and self-efficacy. Non-adherence was assessed by self-report, pill-count and combined measures. Prevalence ratios and 95% confidence intervals (CIs) were calculated at p-value <0.1. Thirty-seven percent (33/90) of FSWs were non-adherent by pill-count, 29% (28/95) by self-report and 52% (51/99) by the combined measure. Seventy-six percent (76/100) of FSWs reported experience of at least one form of food insecurity in the past six months. In the regression analysis, arrest in the past year was independently associated with the combined measure of non-adherence (crude prevalence ratios 1.7, 95% CI 1.0-2.8). A successful combination adherence intervention should consider several of the socio-behavioral factors identified in this study including arrest and food insecurity.