ABSTRACT
<p><b>OBJECTIVE</b>Face-to-face interview (FTFI) and polling booth survey (PBS) were applied to compare the high risk behavior among HIV-positive clients of female sex workers (CFSWs).</p><p><b>METHODS</b>This study was conducted in antiretroviral therapy (ART) out-patients centers in Hengyang city, where clients who had been informed on their HIV-positive status for 6 months or longer were recruited. FTFI was first used to tackle on 8 sensitive questions related to sexual behavior, followed by PBS to poke on the same questions. Results from FTFI and PBS were then compared.</p><p><b>RESULTS</b>Compared with FIFI, results in the PBS showed higher proportion of participants who reported "having had history of sexually transmitted diseases before knowing that they were infected with HIV" (40.6% vs. 24.2%) but lower proportions on "frequency of having sex with regular sexual partner less than 4 times per month" and "using condoms consistently with regular sexual partners in past 6 months (44.4% vs. 63.0%)". There were no significant differences in the remaining 5 questions shown in the results from the two methods.</p><p><b>CONCLUSION</b>HIV-positive CFSWs continued to practice unsafe sexual behaviors after knowing their HIV related status. Compared with FTFI, PBS seemed to have revealed higher proportion of unsafe sex behaviors, so as to generated more reliable data. While comparing with PBS, the traditional FTFI might have underestimated the risk behaviors among those HIV-positive CFSWs.</p>