Sexual relationship and condom use of HIV individuals with their most familiar sexual contacts 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: n refers to the total number of sexual contacts reported;
†Chi-square test or Fisher’s exact test compare the proportion of types of sexual contacts or condom use of HIV individuals between T2 and T1;
‡Chi-square test or Fisher’s exact test compare the proportion of types of sexual contacts or condom use of HIV individuals between T3 and T2.