OBJECTIVE:
To
investigate incidence of HIV infection and identify associated risk factors
among men who have sex with men (MSM) in common bathing pools in Tianjin.
METHODS:
A
prospective cohort study was conducted among the MSM recruited in a common
bathing pool in Tianjin from 2011 to 2013. A total of 733 MSM were surveyed to
obtain the information about their sociodemographic characteristics,
HIV-related knowledge awareness and sexual behaviors, and subsequent follow-up
surveys were carried out every four months. Cox regression analysis was
conducted to identify the risk factors for HIV infection.
RESULTS:
A total
of 59 HIV infection cases were found in the 2.5-years follow-up survey. The
cumulative follow-up time was 7 384.9 person months. The incidence rate of HIV infection
was 9.59/100 person-year. The multivariate Cox regression analysis showed that
young age, low score of HIV/AIDS knowledge awareness (HR=1.82,
95%CI:1.03-2.66), having two and more sexual partners during past 6 months
(HR=1.74, 95%CI: 1.26-2.58) and syphilis (HR=2.36, 95%CI:1.31-3.27) were
significantly associated with HIV infection in this MSM cohort.
CONCLUSIONS:
Low
score of HIV/AIDS knowledge awareness, young age, having two and more sexual
partners during past 6 months and syphilis were the risk factors for HIV
infection in MSM in common bathing pools. It is necessary to strengthen the HIV
surveillance and intervention in this population.
- 1Tianjin Center for Disease Control and Prevention, Tianjin 300011, China.
- 2National Center for STD/AIDS Control and Prevention, Chinese Center for Disease Control and Prevention Beijing 102206, China.
- 3United States Center of Disease Control Global AIDS Program, China Office, Beijing 100600, China.
- 4Shenlan Public Health Counsel Service Center, Tianjin 300121, China.
- Zhonghua Liu Xing Bing Xue Za Zhi. 2016 Mar 10;37(3):362-6. doi: 10.3760/cma.j.issn.0254-6450.2016.03.014.
OBJECTIVE:
To
understand the change of behavioral characteristics among drug users (DUS) in
Tianjin and the prevalence rates of major sexually transmitted disease
infections. A series of cross-sectional surveys were used.
METHODS:
Between
April and June, 2011 to 2015, a cross-sectional survey with face to face
interview, was undertaken. Interview was conducted among DUS who entered the
drug rehabilitation center and blood samples were drawn to test for
HIV/syphilis/HCV infections. Multivariate logistic regression analysis was used
to analyze the relationship between the infection of major sexually transmitted
diseases and drug abuse or sexual behavior.
RESULTS:
2 000 DUS
were included during the 5-year study, with the average age of the DUS as 34.5
± 8.7. Female accounted for 17.9% and club drug (new drugs) users accounted
45.4% of the participants, with its proportion increasing over the years.
Comparing to traditional drug users, club drug users showed more sexual
activities with partners, but lower proportion of condom use. Prevalence rates
of HIV/Syphilis and HCV were 1.3%, 11.0%, 52.0%, respectively. The prevalence
of syphilis among club drug users was significantly higher than those on
traditional-drug use (χ(2)=67.778,P<0.001). Data from Binary logistic
regression analysis showed that club drug use (adjusted OR=1.607, 95%
CI:1.191-2.170) and females (adjusted OR=5.287, 95%CI: 3.824-7.311) were
associated with syphilis infection among DUS.
CONCLUSION:
Drug
abuse behavior changed among the drug abuse in Tianjin. Proportion of club drug
use continued to increase so as the risk of infected sexually transmitted
diseases.
- 1Department of AIDS/STD Prevention and Control, Tianjin Center for Disease Control and Prevention, Tianjin 300011, China.
- 2Department of AIDS/STD Prevention and Control, Tianjin Hebei District Center for Disease Control and Prevention, Tianjin 300150, China.
- 3Division of Epidemiology, National Center for AIDS/STD Control and Prevention, Chinese center for Disease Control and Prevention, Beijing 102206, China.
- Zhonghua Liu Xing Bing Xue Za Zhi. 2016 Feb 10;37(2):202-5. doi: 10.3760/cma.j.issn.0254-6450.2016.02.010.
