Use of a rapid HIV home test to screen sexual partners: a commentary on Ventuneac, Carballo-Diéguez, Leu et al. 2009.

Previously, we estimated the HIV risk reduction that men who have sex with men could attain using a rapid HIV home test to screen sexual partners versus using condoms inconsistently. Here, we clarify the assumptions of our published formulas. Using models that more closely resemble our study population, our results show a difference from that presented in the original article in the magnitude of the relative advantage (i.e., lower risk of HIV infection) for HIV home test use versus inconsistent condom use. We present a general formula that can accommodate different types of partnerships in estimating risk of HIV infection.