High HIV prevalence detected in 2006 and 2007 among men who have sex with men in China's largest municipality: an alarming epidemic in Chongqing, China.

BACKGROUND

Data from many large cities in China show HIV prevalence among men who have sex with men (MSM) increasing dramatically over the recent years, making HIV transmission among MSM in China a growing concern. To facilitate targeted HIV prevention among MSM in Chongqing, surveys were conducted to examine HIV prevalence and its associated factors in 2006 and in 2007.

METHODS

Surveys were conducted in 2006 and 2007 in 3 districts of Chongqing at venues and cruising areas where MSM frequent. Univariate and bivariate analysis were conducted on demographic, behavioral, and biological data.

RESULTS

HIV prevalence was 19.7% in 2006 and 26.5% in 2007 among recruitees from bathhouses and saunas, more than 2 times higher than recruitees from other venues for both years. HIV prevalence increased from 10.4% in 2006 to 12.5% in 2007. HIV prevalence was more than 20% among those older than 40 years of age, much higher than HIV prevalence in younger age groups. HIV prevalence among married MSM was 15.9% in 2006 and 20.9% in 2007, compared with nonmarried MSM at 7.6% in 2006 and 9.2% in 2007.

DISCUSSION: Urgent attention for prevention services is required to address the overall high HIV prevalence among MSM in the city, with special focus on subgroups as older, married MSM, and those recruited from bathhouses and saunas.