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Title: HIV-1 seroconversion in a prospective study of female sex workers in northern Thailand: Continued high incidence among brothel-based women
Authors: Peter H. Kilmarx
Khanchit Limpakarnjanarat
Timothy D. Mastro
Supachai Saisorn
Jaranit Kaewkungwal
Supaporn Korattana
Wat Uthaivoravit
Nancy L. Young
Bruce G. Weniger
Michael E. St Louis
HIV/AIDS Collaboration
Chiang Rai Provincial Public Health Office
Chiang Rai Prachanukhro Hospital
National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
Mahidol University
Thailand Ministry of Public Health
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Oct-1998
Citation: AIDS. Vol.12, No.14 (1998), 1889-1898
Abstract: Objectives: To determine the incidence of HIV-1 infection, temporal trends in incidence, and risk factors for seroconversion in a cohort of female commercial sex workers (CSW) in upper northern Thailand, the region of Thailand with the highest rates of HIV-1 infection. Methods: CSW were enrolled from 1991 through 1994 and evaluated prospectively with interviews, physical examination, testing for sexually transmitted diseases (STD), and serologic testing for HIV-1 infection. Results: The incidence of HIV-1 seroconversion in the first year of follow-up was 20.3 per 100 person-years among 126 brothel-based CSW and 0.7 per 100 person-years among 159 other CSW who worked in other venues such as bars or massage parlors. Incidence remained elevated among brothel-based CSW who were enrolled later in the study compared with those who enrolled earlier. Through 1996, 30 women seroconverted. In a multivariable proportional hazards model, seroconversion was significantly associated (P < 0.05) with brothel-based sex work (adjusted risk ratio, 7.3) and Chlamydia trachomatis cervical infection (adjusted risk ratio, 3.3). Conclusion: Despite national HIV control efforts and declining rates of infection among young men in Thailand, brothel-based CSW may continue to be at high risk for HIV-1 infection. Additional efforts are needed to provide alternative economic choices for young women, to ensure universal condom use during commercial sex, and to develop new prevention technologies.
ISSN: 02699370
Appears in Collections:Scopus 1991-2000

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