Frequent HIV testing among participants of a routine HIV testing program.

Massachusetts developed a routine HIV testing program in four sites from January-September 2002. Of the 2,502 patients tested, 453 (18.1%) reported ≥2 HIV tests within the prior three years. In multivariate analyses, frequent HIV testing was associated with younger age (18-30 years, OR = 1.42), a history of injection drug use (OR = 6.35), and men who had sex with men (OR = 3.49). Participants who reported multiple sexual partners (OR = 2.17) and high risk sexual behavior (OR = 2.02) were significantly more likely to have had a prior HIV test. Patients whose HIV risk was unknown had the highest association with frequent testing (OR = 13.18). Because characteristics of frequent HIV testers may inform behavioral interventions, there is a need to understand the motivation for repeatedly accessing HIV testing services.