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J Acquir Immune Defic Syndr. 2007 May 1;45(1):77-84.

The influence of social and sexual networks in the spread of HIV and syphilis among men who have sex with men in Shanghai, China.

Author information

1
Center for AIDS Prevention Studies, University of California, San Francisco, San Francisco, CA 94105, USA. kyung-hee.choi@ucsf.edu

Abstract

OBJECTIVES:

To analyze characteristics of social and sexual networks and their role as risk factors for HIV and syphilis among men who have sex with men (MSM) in Shanghai, China.

DESIGN:

: A cross-sectional study.

METHODS:

We recruited 477 participants using a snowball sampling method. We administered a face-to-face questionnaire and provided testing and counseling for HIV and syphilis.

RESULTS:

The prevalences of HIV and markers for syphilis were 1.47% (95% confidence interval [CI]: 0.59 to 3.01) and 13.47% (95% CI: 10.53 to 16.88), respectively. The independent factors associated with lower risk for syphilis infection were having a contact network, overlap of social and sexual networks, meeting other MSM at the gym or through the Internet, having 3 to 5 lifetime male anal sex partners, and having a female steady sex partner. A larger male sexual network size, having been married, being more knowledgeable about HIV, having 6 or more lifetime male anal sex partners, and having steady male or female sex partners were independently associated with having unprotected anal or vaginal intercourse.

CONCLUSIONS:

Significant associations were found between network characteristics and syphilis infection and unprotected sex. Network-based interventions should be developed to reduce this HIV risk among MSM in China.

PMID:
17325608
DOI:
10.1097/QAI.0b013e3180415dd7
[Indexed for MEDLINE]

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