The dynamic trends of HIV prevalence, risks, and prevention among men who have sex with men in Chongqing, China.
OBJECTIVE
This study was to characterize the continuously changing trends of HIV prevalence, risks, sexual behaviors, and testing behaviors among men who have sex with men (MSM) in Chongqing, China.


METHODS
Five consecutive cross-sectional surveys were conducted among MSM in 2006, 2008, 2010, 2012, and 2013. Testing for HIV and syphilis was performed, and HIV risks, sexual behavior, prevention, and HIV testing behavior were collected using the same questionnaire.


RESULTS
HIV prevalence increased from 13.0% to 19.7% from 2006 to 2013 (P = 0.004), with an increase of 1.0% per year. Syphilis prevalence peaked in 2008 with a positive rate of 11.6% and then experienced a sharp drop to 2.8% in 2012 and 2.9% in 2013. Percentage of those who ever received HIV testing in the last year increased from 17.0% to 43.3% (P < 0.001); condom use at the last anal intercourse and reported consistent condom use in the last 6 months increased from 51.8% to 71.0% (P < 0.001) and from 24.7% to 47.9% (P < 0.001), respectively.


CONCLUSIONS
HIV continued to spread among MSM in Chongqing even when a decline in prevalence of syphilis and increase in awareness rate, condom use, and HIV testing seeking behaviors seemed to occur.
National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100026, China.
Gang
0000-0001-6852-1767
G
Zeng
Chongqing Center for Disease Control and Prevention, Chongqing 400042, China.
Liangui
L
Feng
Chongqing Center for Disease Control and Prevention, Chongqing 400042, China.
Lin
L
Ouyang
Chongqing Center for Disease Control and Prevention, Chongqing 400042, China.
Rongrong
R
Lu
National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100026, China.
Peng
P
Xu
Chongqing Center for Disease Control and Prevention, Chongqing 400042, China.
Guohui
G
Wu
National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100026, China.
Fan
F
Lu
D000293:Adolescent; D000328:Adult; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control*; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D012309:Risk-Taking; D012725:Sexual Behavior; D011795:Surveys and Questionnaires