Sexual contacts of HIV individuals in the 12 months period prior to HIV diagnosis (T1), the baseline survey (T2) and the one-year follow-up survey (T3), respectively, in Taizhou prefecture, 2009–2010.

Note: *Wilcoxon signed-rank test compare the difference in number of sexual contacts of HIV individuals between different time points;
†Mann-Whitney test for variables with two categories were applied to determine whether the number of sexual contacts during T1 or the changes in the number of sexual contacts of HIV-infected individuals during different time periods were significantly associated with their sociodemographic, HIV transmission route and ART status;
‡Kruskal-Wallis test for variables with three or more categories were applied to determine whether were significantly associated with their sociodemographic, HIV transmission route and ART status.