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He L, Pan X, Yang J, Zheng J, Luo M, Cheng W, Chai C. Current syphilis infection in virally suppressed people living with HIV: a cross-sectional study in eastern China. Front Public Health 2024; 12:1366795. [PMID: 38962784 PMCID: PMC11220119 DOI: 10.3389/fpubh.2024.1366795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 06/03/2024] [Indexed: 07/05/2024] Open
Abstract
Background Antiretroviral therapy (ART) has been shown to reduce human immunodeficiency virus (HIV) viral replication and ultimately achieve viral suppression and eliminate HIV transmission. However, little is known about the impact of viral suppression on high-risk behaviors and sexually transmitted infections (STIs). Objective This study aimed to assess the rates of current syphilis infection in virally suppressed people living with HIV (PLWH) and whether with the duration of ART can reduce the current syphilis infection in eastern China. Method We conducted a cross-sectional survey of PLWH in Zhejiang Province, China, in 2022. PLWH who were on ART >6 months and were virally suppressed (viral load <50 copies/mL) were included in the study. Data were collected from the National Epidemiological Database of Zhejiang Province and all participants were tested for viral load and current syphilis. Multivariable logistic regression was used to identify risk factors associated with current syphilis infection. Result A total of 30,744 participants were included in the analysis. 82.7% of participants were male, the mean age was 44.9 ± 14.1 years, 84.9% had received ART in a hospital setting, the mean time on ART was 5.9 ± 3.1 years and 5.6% of participants were infected with current syphilis. Multivariable logistic regression showed that being male [adjusted odds ratio (aOR): 2.12, 95% confidence interval (CI): 1.69-2.66], high level of education (aOR: 1.23, 95% CI: 1.02-1.49), homosexual route of HIV infection (aOR: 1.80, 95% CI: 1.60-2.04), non-local registered residence (aOR: 1.29, 95% CI: 1.11-1.51), had history of STIs before HIV diagnosis (aOR: 1.95, 95 % CI: 1.75-2.18) and treatment provided by a municipal hospital (aOR: 2.16, 95% CI: 1.31-3.55) were associated with increased risk of current syphilis infection. Being married (aOR: 0.67, 95% CI: 0.58-0.76) was associated with a decreased risk of current syphilis infection. Conclusion Our findings revealed a high rate of current syphilis infection among virally suppressed PLWH in eastern China. Duration of ART did not reduce the prevalence of current syphilis infection. Targeted interventions to reduce current syphilis infection should be prioritized for subgroups at higher risk.
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Affiliation(s)
| | - Xiaohong Pan
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang, China
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Syphilis infection and epidemiological characteristics in Haidian District, Beijing, China, 2013-2018. Public Health 2020; 190:62-66. [PMID: 33360028 DOI: 10.1016/j.puhe.2020.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/15/2020] [Accepted: 11/06/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVES This study aimed to investigate the epidemiological characteristics of syphilis between 2013 and 2018 in the Haidian District of Beijing in China. In addition, this study suggests potential strategies to control the spread of syphilis infection. STUDY DESIGN Observational study. METHODS Data were collected from the Infectious Disease Reporting System at medical institutions within the Haidian District of Beijing between 2013 and 2018. Epidemiological methods, combined with Chi-squared test, were used to analyse the distribution of syphilis in terms of time, region, population and development stage. RESULTS In total, 3048 patients with syphilis were reported in the Haidian District between 2013 and 2018, with an average annual prevalence of 14.26 per 100,000 population. The prevalence of syphilis was higher in rural than urban regions, and the sex ratio of male-to-female was 1.52:1. Patients aged 20-29 years accounted for 22.60% (689/3048) of the total cases. In terms of occupational distributions, the highest proportion (30.61%; 933/3048) was seen in individuals who were homemakers or unemployed. Latent syphilis was present in 66.83% (2037/3048) of patients and accounted for an increased proportion of syphilis cases each year. CONCLUSIONS Syphilis was epidemic in the Haidian District of Beijing between 2013 and 2018. High prevalence was seen in young and middle-aged males living in urban areas. The prevalence of syphilis has been increasing since 2016; thus, public health policies and intervention strategies need to be strengthened to curb the spread of infection.
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The prevalence and correlates of oral sex among low-tier female sex workers in Zhejiang province, China. PLoS One 2020; 15:e0238822. [PMID: 32898155 PMCID: PMC7478619 DOI: 10.1371/journal.pone.0238822] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 08/24/2020] [Indexed: 11/19/2022] Open
Abstract
Objectives Oral sex and its associated factors among low-tier female sex workers (FSWs) have not been documented in the Chinese literature. Here, we report this perspective in this group. Methods The data were derived from a large cross-sectional study conducted among low-tier FSWs using a structured questionnaire in 21 counties in Zhejiang province, China. The prevalence of oral sex and its associated factors among 2645 low-tier FSWs were analyzed using bivariate and multivariate analysis. Results Of all participants, 579 (21.9%) had performed oral sex with clients over the previous month. Multivariate analysis revealed that oral sex is related to being unmarried, low income, early initiation of commercial sex, having conducted commercial sex in more counties, longer duration of commercial sex, larger number of clients, ever having engaged in anal sex, less use of condoms and oral contraceptives during the previous month, low rate of adoption for contraception at the present time, and STI-related symptoms during the previous half year. Conclusion Oral sex practitioners among low-tier FSWs in China are at a higher risk of STI, HIV, and unwanted pregnancy compared to those who did not engage in oral sex. Behavioral interventions carried out among low-tier FSWs should specifically target low-tier FSWs who practice oral sex, should carefully take into account the characteristics of these FSWs, provide risk awareness education and training for condom use negotiation, and promote the availability of condom and reproductive health care, timely diagnosis, and treatment of STIs.
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Liu Y, Bian QQ, Zhang SH, Wang J, Wang ZM, Li JY. Post-treatment serological changes in some patients with early syphilis exhibit a parabolic trend. Int J STD AIDS 2019; 30:1389-1396. [PMID: 31744395 DOI: 10.1177/0956462419871855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Early syphilis accounts for a large proportion of patients with syphilis. Non- Treponema pallidum tests are commonly used to assess treatment effectiveness by analyzing the serological titer before treatment and six months after treatment. However, serological changes during the first three months after completion of treatment have not been completely understood. This prompted us to investigate whether serum titers of patients exhibit a continuous decrease post-treatment and to assess the trend of change in serological titer during this period. One hundred and seventy-three eligible patients with early syphilis were included in the analysis. Pre-treatment serological titers and those at three and six months post-treatment were compared and analyzed. Serological recovery was defined as a 4-fold or greater decrease in titer from pre-treatment level. Forty patients (23.1%) were found to have an increased serum titer at three months after treatment. Among the 40 patients, 13 patients had primary syphilis, 5 patients had secondary syphilis, and 22 patients had early latent syphilis. The proportion of patients with primary syphilis was higher, and their initial titers were significantly lower. No significant differences were observed with respect to age, gender, or initial treatment. The assessment results of 17 patients (9.8% of the total patients) change. Serological changes in some patients exhibit a parabolic pattern that may affect the clinician’s assessment of patient recovery. Therefore, more frequent assessment of serological titer might be required within the first six months post-treatment.
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Affiliation(s)
- Yong Liu
- Department of Dermatology and STD, The Third Central Hospital of Tianjin; Tianjin Key Laboratory of Artificial Cell; Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Que-Qiao Bian
- Department of Dermatology and STD, The Third Central Hospital of Tianjin; Tianjin Key Laboratory of Artificial Cell; Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Shu-Huan Zhang
- Department of Dermatology and STD, The Third Central Hospital of Tianjin; Tianjin Key Laboratory of Artificial Cell; Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Jun Wang
- Department of Dermatology and STD, The Third Central Hospital of Tianjin; Tianjin Key Laboratory of Artificial Cell; Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin, China
| | - Zhen-Ming Wang
- Department of Clinical Laboratory, The Third Central Hospital of Tianjin, Tianjin, China
| | - Jun-Yue Li
- Department of Clinical Laboratory, The Third Central Hospital of Tianjin, Tianjin, China
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Fu R, Zhao J, Wu D, Zhang X, Tucker JD, Zhang M, Tang W. A spatiotemporal meta-analysis of HIV/syphilis epidemic among men who have sex with men living in mainland China. BMC Infect Dis 2018; 18:652. [PMID: 30541463 PMCID: PMC6292157 DOI: 10.1186/s12879-018-3532-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 11/20/2018] [Indexed: 11/25/2022] Open
Abstract
Background Geographic differences in HIV, syphilis and condomless sex among men who have sex with men in China remained unknown. We aimed to elucidate these spatiotemporal changing patterns in China. Methods We conducted a spatiotemporal meta-analysis. We searched four databases for studies conducted between 2001 and 2015. We included studies that reported original data of HIV/syphilis prevalence in China, the study’s area/province, and period of data collection. We grouped studies into six regions and four time periods. We examined the changing patterns of national and regional prevalence of HIV, syphilis and condomless sex. Results Search results yielded 2119 papers, and 272 were included in the meta-analysis. The sample sizes of the studies ranged from 19 to 47,231. National HIV prevalence increased from 3.8% (95% CI 3.0–4.8) in 2001–07 to 6.6% (5.6–7.7) in 2013–15. In most regions, the rise occurred before 2010 and the HIV prevalence remained relatively stable afterwards, except for the Northwest which showed a considerable increase since 2008. National syphilis prevalence decreased from 12.3% (10.2–14.9) in 2001–07 to 7.1% (5.6–8.9) in 2013–15. Conclusions The trends of HIV and syphilis infections have been effectively curbed in MSM in most regions of China. Continuous efforts, particularly promotion of condom use, are needed to further reduce these infections. Electronic supplementary material The online version of this article (10.1186/s12879-018-3532-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rong Fu
- Dermatology Hospital, Southern Medical University, Guangzhou, 510095, Guangdong, China.,University of North Carolina Project-China, Guangzhou, China.,SESH (Social Entrepreneurship to Spur Health) study group, Guangzhou, China
| | - Jinkou Zhao
- Technical Advice and Partnership Department, The Global Fund to Fight AIDS, Tuberculosis and Malaria, Geneva, Switzerland
| | - Dan Wu
- Dermatology Hospital, Southern Medical University, Guangzhou, 510095, Guangdong, China.,University of North Carolina Project-China, Guangzhou, China.,SESH (Social Entrepreneurship to Spur Health) study group, Guangzhou, China
| | - Xiayan Zhang
- Shijingshan District Center for Disease Control and Prevention, Beijing, China
| | - Joseph D Tucker
- University of North Carolina Project-China, Guangzhou, China.,SESH (Social Entrepreneurship to Spur Health) study group, Guangzhou, China
| | - Meiwen Zhang
- Claremont Graduate University, Claremont, CA, USA
| | - Weiming Tang
- Dermatology Hospital, Southern Medical University, Guangzhou, 510095, Guangdong, China. .,University of North Carolina Project-China, Guangzhou, China. .,SESH (Social Entrepreneurship to Spur Health) study group, Guangzhou, China.
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Guanghua L, Yi C, Shuai T, Zhiyong S, Zhenzhu T, Yuhua R, Yousuf MA, Wensheng F. HIV, syphilis and behavioral risk factors among men who have sex with men in a drug-using area of southwestern China: Results of 3 cross-sectional surveys from 2013 to 2015. Medicine (Baltimore) 2018; 97:e0404. [PMID: 29668597 PMCID: PMC5916656 DOI: 10.1097/md.0000000000010404] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
To assess human immunodeficiency virus (HIV), syphilis, and behavioral risk factors among men who have sex with men (MSM) in southwestern China, where HIV started as a drug-driven epidemic, and shifted to mainly heterosexual transmission.These cross-sectional studies were conducted yearly in 2013, 2014, and 2015 in Guangxi, China. A total of 1,996, 1,965, and 1,697 participants were recruited in 2013, 2014, and 2015, respectively. The data included demographic and sexual behavioral variables. Other variables included individuals who used illegal drugs, and who received HIV counseling, testing, and free condoms, and peer education. Participants were tested for HIV, syphilis, and hepatitis C virus (HCV) with whole blood specimens. Questionnaires and laboratory testing data were double entered, and validated with EpiData software. The data were then transferred into SPSS software (SPSS Inc, Chicago, IL) and Chi-square test performed.The prevalence of HIV was 6.6% in 2013, 8.4% in 2014, and 11.2% in 2015. The prevalence of syphilis was 9.3% in 2013, 9.8% in 2014, and 6.1% in 2015. And HCV prevalence was 0.5% in 2013 and remained stable at 0.4% in 2014, and 2015. HIV infection, and associated factors among MSM in these 3 annual cross-sectional survey showed that HIV-infected MSM were significantly, more likely, to perform unprotected anal intercourse with any commercial male partners in the past 6 months (adjusted odds ratio [AOR] = 1.81, 95% CI: 1.50-2.20), had sex with any female partners in the past 6 months (AOR = 1.31, 95% CI: 1.01-1.71), used drugs in the past (AOR = 2.73, 95% CI: 1.30-5.71), and are syphilis infected (AOR = 3.53, 95% CI: 2.77-4.49).There is an urgent need for intervention strategies like condom distribution, HIV counseling, free testing, and education regarding safe sex, HIV, and other sex-related diseases in Guangxi to curb, and prevent HIV among MSM.
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Affiliation(s)
- Lan Guanghua
- Guangxi Center for Disease Control and Prevention, Nanning
| | - Chen Yi
- Guangxi Center for Disease Control and Prevention, Nanning
| | - Tang Shuai
- Guangxi Center for Disease Control and Prevention, Nanning
| | - Shen Zhiyong
- Guangxi Center for Disease Control and Prevention, Nanning
| | - Tang Zhenzhu
- Guangxi Center for Disease Control and Prevention, Nanning
| | - Ruan Yuhua
- State Key Laboratory for Infectious Disease Prevention and Control (SKLID), Chinese Center for Disease Control and Prevention (China CDC), Beijing
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | | | - Fan Wensheng
- Department of Health Services Administration, Florida International University, Miami, FL
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7
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NAVAZO-EGUÍA AI, RIOJA-PEÑARANDA E, ECHEVARRIA-ITURBE C, TERÁN-MUÑOZ D, CORDERO-CIVANTOS C, IBAÑEZ-MUÑOZ C. Manifestaciones orales de la sífilis. Caso clínico. REVISTA ORL 2017. [DOI: 10.14201/orl.16751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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8
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Ma Q, Jiang J, Pan X, Cai G, Wang H, Zhou X, Jiang T, Chen L. Consistent condom use and its correlates among female sex workers at hair salons: a cross-sectional study in Zhejiang province, China. BMC Public Health 2017; 17:910. [PMID: 29183301 PMCID: PMC5706376 DOI: 10.1186/s12889-017-4891-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 11/06/2017] [Indexed: 11/15/2022] Open
Abstract
Background This study investigated condom use among female sex workers (FSWs) at hair salons during commercial sexual interactions over 1 month. We explored the associations of such use with various sexual behaviours, HIV/STI risk perception and related knowledge, self-efficacy regarding condom use, exposure to behavioural interventions, and other factors. This type of information has not been reported in China and is critical for designing and modifying programs aimed at preventing HIV/STI transmission in this group of FSWs and their clients. Methods Our data were derived from a large cross-sectional study conducted among low-tier FSWs in 21 counties within Zhejiang province, China. Data were collected from September to November 2013.Bivariable and multiple logistic regression analyses were used to identify factors associated with self-reported consistent condom use among FSWs working at hair salons. Results Of 1682 FSWs working at hair salons, 50.5% consistently used condom with clients during the previous month. Multivariable analysis revealed that condom use for commercial sex, consistent vaginal douching after commercial sex, adopting contraceptive measures, high scores on perceived self-efficacy regarding condom use, and exposure to interventions were associated with self-reported consistent condom use; early initiation of commercial sex, experiences with oral sex, rarely/sometimes/often using oral contraceptives, and having seen a doctor were associated with not using condoms. Conclusions Commercial sex is not effectively protected, and behavioural interventions targeting FSWs should take into account the various factors that are correlated to condom use.
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Affiliation(s)
- Qiaoqin Ma
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
| | - Jianmin Jiang
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China.
| | - Xiaohong Pan
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
| | - Gaofen Cai
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
| | - Hui Wang
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
| | - Xin Zhou
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
| | - Tingting Jiang
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
| | - Lin Chen
- Zhejiang Provincial Center for Disease Control and Prevention, No.3399, Binsheng Road, Hangzhou, 310051, China
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Changing Epidemic of HIV and Syphilis Among Resident and Migrant Men Who Have Sex with Men in Jiangsu, China. Sci Rep 2017; 7:9478. [PMID: 28842553 PMCID: PMC5573352 DOI: 10.1038/s41598-017-08671-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 07/12/2017] [Indexed: 11/08/2022] Open
Abstract
Men who have sex with men (MSM) in China face high rates of HIV and syphilis infection exacerbated by internal migration. Studies on the differences of HIV and syphilis epidemics changing trends in high-risk behaviors and geographic distribution between resident and migrant MSM in Jiangsu, China were conducted. MSM were recruited from 14 surveillance sites in the serial cross-sectional study. Data on demographics, sexual behaviors, HIV and syphilis prevalence were collected. Participants were classified as residents or migrants based on household registration. During 2010–2014, 19,750 MSM were investigated. Engaged in anal sex (76.3% to 80.2%, P < 0.01) as well as received HIV-related services (72.1% to 79.2%, P < 0.01) were increasing. In contrast, engaged in commercial anal sex with males (7.4% to 5.0%, P < 0.01) and drug use (1.6% to 0.8%, P < 0.01) were decreasing. HIV prevalence ranged between 8.6% to 9.6%, while syphilis prevalence decreased over time (13.4–6.8%, P < 0.01). Further, we found that migrant MSM were more likely to engage in condomless anal sex, also had a higher HIV and syphilis prevalence than resident. During the study period, while syphilis prevalence decreased, higher rates of risk behaviors among migrant MSM called for targeted intervention strategies to reduce the HIV transmission.
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10
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Chen XS. Challenges in responses to syphilis epidemic. THE LANCET. INFECTIOUS DISEASES 2017; 17:793-794. [PMID: 28701274 DOI: 10.1016/s1473-3099(17)30327-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 05/09/2017] [Indexed: 12/01/2022]
Affiliation(s)
- Xiang-Sheng Chen
- National Center for STD Control, Chinese Academy of Medical Sciences & Peking Union Medical College Institute of Dermatology, Nanjing 210042, China.
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11
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Qin Q, Tang W, Ge L, Li D, Mahapatra T, Wang L, Guo W, Cui Y, Sun J. Changing trend of HIV, Syphilis and Hepatitis C among Men Who Have Sex with Men in China. Sci Rep 2016; 6:31081. [PMID: 27535092 PMCID: PMC4989164 DOI: 10.1038/srep31081] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 07/13/2016] [Indexed: 11/21/2022] Open
Abstract
Dearth of information regarding the trend and correlates of HIV, syphilis and Hepatitis C (HCV) in a country-wide sample of understudied though high-risk Chinese men who have sex with men (MSM) called for a comprehensive serial cross-sectional study. Using a multistage mixed-method strategy, 171,311 MSM from 107 selected cities/counties in 30 provinces of mainland China, were interviewed and tested. Descriptive, bivariate, multivariate and Cochran-Armitage trend analyses were conducted using SAS 9.2. During 2009-13, recent (71.5% to 78.6%, p < 0.001) and consistent (40.4% to 48.8%, p < 0.001) condom use as well as condom use during commercial anal sex (46.5% to 55.0%, p < 0.001) were increasing. In contrast, commercial anal sex with male (11.9% to 7.1%, p < 0.001) and drug use (1.9% to 0.8%, p < 0.001) were decreasing over time. HIV prevalence increased gradually (5.5% to 7.3%, p < 0.001), while syphilis (9.0% to 6.3%, p < 0.001) and HCV prevalence (1.5% to 0.7%, p < 0.001) decreased over time. A positive correlation was observed between HIV and syphilis prevalence (r = 0.38). HIV infection was associated with HIV-related knowledge, services and injecting drug use. An increasing trend of HIV prevalence was observed during 2009–13 among MSM in China. While gradual reduction of risk behaviors along with syphilis and HCV prevalence supported expansion of testing and prevention services, increasing HIV burden called for deeper thematic investigations.
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Affiliation(s)
- Qianqian Qin
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Weiming Tang
- University of North Carolina at Chapel Hill, Project-China. No. 2 Lujing Road, Guangzhou, 510095, China.,School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27514, USA
| | - Lin Ge
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Dongmin Li
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Tanmay Mahapatra
- National Institute of Cholera and Enteric Diseases, Kolkata, 700010, India
| | - Liyan Wang
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wei Guo
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yan Cui
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jiangping Sun
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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12
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Prevalence and associated factors of condomless receptive anal intercourse with male clients among transgender women sex workers in Shenyang, China. J Int AIDS Soc 2016; 19:20800. [PMID: 27431471 PMCID: PMC4949316 DOI: 10.7448/ias.19.3.20800] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 05/04/2016] [Accepted: 05/13/2016] [Indexed: 11/08/2022] Open
Abstract
Introduction Globally, transgender women sex workers have a high prevalence of HIV and condomless receptive anal intercourse with male clients (CRAIMC). We investigated the prevalence of CRAIMC and factors associated with CRAIMC among transgender women sex workers in China. Methods In 2014, we anonymously interviewed 220 transgender women sex workers face to face in Shenyang, China. Those who self-reported as HIV negative or as having unknown HIV serostatus were invited to take up free, anonymous HIV rapid testing (n=183); 90 did so. Using CRAIMC in the last month as the dependent variable, three types of associated factors were investigated, in addition to background factors: feminizing medical interventions, sex work and perceptions related to condom use. Univariate and multiple logistic regression models were fitted. Results Of the participants, 16.8% self-reported as HIV positive and 9.1% were detected to be HIV positive through free HIV testing; 26.8% had had CRAIMC in the last month, 45.5% had performed sex work in other Chinese cities (last year), and 23.2% had had condomless anal intercourse with men who were non-clients. In the adjusted analysis, significant factors associated with CRAIMC (last month) included the following: 1) any feminizing medical intervention performed (adjusted odds ratio, AOR: 2.22); 2) sex-work-related factors, including recruitment of male clients most often at hotels (AOR: 5.02) and charge per episode of transactional sex (201 to 400 RMB, AOR: 0.27; reference group: ≤100 RMB); and 3) perceptions related to condom use, including perceived transgender identity's impact on condomless sex such as wearing feminine attire, concern about exposing their status as a transgender woman to male clients (AOR: 1.20) and perceived self-efficacy of consistent condom use with male clients (AOR: 0.56). Perceived self-efficacy of consistent condom use with male clients fully mediated the association between perceived transgender identity's impact on condomless sex and CRAIMC. Conclusions HIV prevalence among transgender women sex workers was high but probably underestimated. The high prevalence of condomless anal intercourse with male non-clients and high mobility in sex work among this population in China are causes for concern. Risk factors for CRAIMC were multidimensional and should be considered when designing interventions targeting transgender women sex workers. Such interventions are urgently needed.
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13
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HIV epidemics among transgender populations: the importance of a trans-inclusive response. J Int AIDS Soc 2016. [DOI: 10.7448/ias.19.3.21259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Mantell JE, LeVasseur MT, Sun X, Zhou J, Mao J, Peng Y, Zhou F, DiCarlo AL, Kelvin EA. What role does transactional sex play in the HIV/STI and reproductive health risk behaviour among high-tier entertainment centre workers in China? Glob Public Health 2016; 10:947-67. [PMID: 26274897 DOI: 10.1080/17441692.2015.1045918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
China's rapid economic growth over the last three decades has led to increased population wealth and the proliferation of entertainment centres where people can conduct business, relax and meet new people. Little is known about the sexual risk behaviours of employees at high-tier entertainment centres. This paper addresses this gap in knowledge by comparing HIV risk perception and sexual and reproductive health behaviours among female and male employees at three high-tier entertainment centres in two cities in China, comparing those who report a history of transactional sex to those who do not. In both cities, participants who reported a history of transactional sex were more likely than those without a history of transactional sex to report multiple sexual partnerships, more lifetime sexual partners, a history of sexually transmitted infections (STIs), having anal sex and/or recent abortions, and were more likely to perceive themselves to be at risk for STIs/HIV. However, risk behaviour was also high among those with no history of transactional sex. These findings highlight the need for targeted sexual and reproductive health initiatives for employees in these work settings.
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Affiliation(s)
- Joanne E Mantell
- a HIV Center for Clinical and Behavioral Studies , New York State Psychiatric Institute and Columbia University , New York , NY , USA
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Yu YJ, Li X, Tam CC, Zhou Y, Chen Y, Shen Z. Demographic and behavioral correlates of HIV/STI among Vietnamese female sex workers in southwest China. AIDS Care 2016; 28:1455-60. [PMID: 27240573 DOI: 10.1080/09540121.2016.1189500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Previous literature has suggested high rates of HIV/STIs among Chinese FSWs. However, limited data were available regarding HIV-related risks among Vietnamese FSWs - a rapidly increasing, vulnerable population in southwest China. The current study examined the demographic and behavioral factors associated with the infection rates of HIV, syphilis, and Hepatitis C (HCV) among Vietnamese FSWs in Guangxi, China. We conducted a secondary data analysis of a cumulative sample of 1026 Vietnamese FSWs (aged 14-66) recruited over five years (2010-2014) from 35 National Sentinel Surveillance sites in Guangxi. Analyses included Fisher's exact chi-square test, t-test, and binary logistic regression. The overall prevalence of HIV, syphilis, and HCV infections among the cross-border women were 3.2%, 6.9%, and 2.6%, respectively. Multivariate analysis showed that greater lengths of sex work and low paying work venues were significant risk factors for HIV infection; for syphilis infection, older age, drug use experience, and forgoing condom use were significant risk factors; for HCV infection, drug use experience was the only significant risk factor. Our findings suggest that elevated HIV-related risks among the Vietnamese FSWs are closely related to their financial disadvantages and that drug use is a prominent risk factor for cross-border women in the sex trade. Furthermore, culturally tailored and linguistically accessible HIV prevention and intervention initiatives that target cross-border FSWs, with a close international collaboration between China and Vietnam, are urgently needed.
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Affiliation(s)
- Yeon Jung Yu
- a Arnold School of Public Health, University of South Carolina , Columbia , SC , USA
| | - Xiaoming Li
- a Arnold School of Public Health, University of South Carolina , Columbia , SC , USA
| | - Cheuk Chi Tam
- b Department of Psychology , Virginia Commonwealth University , Richmond , VA , USA
| | - Yuejiao Zhou
- c Guangxi CDC, HIV&STD Prevention Center , Nanning , Guangxi , People's Republic of China
| | - Yi Chen
- c Guangxi CDC, HIV&STD Prevention Center , Nanning , Guangxi , People's Republic of China
| | - Zhiyong Shen
- c Guangxi CDC, HIV&STD Prevention Center , Nanning , Guangxi , People's Republic of China
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Zhang X, Zhang T, Pei J, Liu Y, Li X, Medrano-Gracia P. Time Series Modelling of Syphilis Incidence in China from 2005 to 2012. PLoS One 2016; 11:e0149401. [PMID: 26901682 PMCID: PMC4763154 DOI: 10.1371/journal.pone.0149401] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 02/01/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The infection rate of syphilis in China has increased dramatically in recent decades, becoming a serious public health concern. Early prediction of syphilis is therefore of great importance for heath planning and management. METHODS In this paper, we analyzed surveillance time series data for primary, secondary, tertiary, congenital and latent syphilis in mainland China from 2005 to 2012. Seasonality and long-term trend were explored with decomposition methods. Autoregressive integrated moving average (ARIMA) was used to fit a univariate time series model of syphilis incidence. A separate multi-variable time series for each syphilis type was also tested using an autoregressive integrated moving average model with exogenous variables (ARIMAX). RESULTS The syphilis incidence rates have increased three-fold from 2005 to 2012. All syphilis time series showed strong seasonality and increasing long-term trend. Both ARIMA and ARIMAX models fitted and estimated syphilis incidence well. All univariate time series showed highest goodness-of-fit results with the ARIMA(0,0,1)×(0,1,1) model. CONCLUSION Time series analysis was an effective tool for modelling the historical and future incidence of syphilis in China. The ARIMAX model showed superior performance than the ARIMA model for the modelling of syphilis incidence. Time series correlations existed between the models for primary, secondary, tertiary, congenital and latent syphilis.
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Affiliation(s)
- Xingyu Zhang
- Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China
- Department of Anatomy with Radiology, University of Auckland, Auckland, New Zealand
| | - Tao Zhang
- Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China
| | - Jiao Pei
- Department of Science and Education, Sichuan Cancer Hospital & Institute, Sichuan, China
| | - Yuanyuan Liu
- Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China
| | - Xiaosong Li
- Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu, Sichuan, P.R.China
- * E-mail:
| | - Pau Medrano-Gracia
- Department of Anatomy with Radiology, University of Auckland, Auckland, New Zealand
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Zhang L, Chow EPF, Su S, Yiu WL, Zhang X, Iu KI, Tung K, Zhao R, Sun P, Sun X, Yuan L, Muessig KE, Tucker JD, Jing J. A systematic review and meta-analysis of the prevalence, trends, and geographical distribution of HIV among Chinese female sex workers (2000-2011): implications for preventing sexually transmitted HIV. Int J Infect Dis 2015; 39:76-86. [PMID: 26358859 DOI: 10.1016/j.ijid.2015.08.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 08/19/2015] [Accepted: 08/28/2015] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE The aim of this meta-analysis was to investigate temporal and geographical trends in the HIV epidemic among female sex workers (FSWs) recruited from various venues in China. METHODS Chinese and English peer-reviewed articles published between January 2000 and February 2013 were systematically searched. Standard meta-analysis methods were used to calculate the pooled HIV prevalence, in accordance with the PRISMA guidelines. RESULTS The national HIV prevalence among FSWs declined from 0.74% (95% confidence interval (CI) 0.37-1.49%) in 2000-2002 to 0.40% (95% CI 0.31-0.53%) in 2009-2011. All Chinese regions demonstrated significant declines in HIV prevalence, apart from the East and South Central regions, in which the epidemics stabilized at low/moderate levels. Despite a significant decline from 1.92% (95% CI 0.86-4.24%) to 0.87% (95% CI 0.65-1.18%) during 2000-2011, Southwest China still bore the greatest HIV disease burden. Nationwide, FSWs recruited from detention centres had the highest HIV prevalence (0.92%, 95% CI 0.46-1.88%), followed by voluntary counselling and testing sites (0.80%, 95% CI 0.46-1.67%) and entertainment venues (0.61%, 95% CI 0.47-0.79%). The prevalences among FSWs in high-, middle-, and low-tier entertainment venues were 0.59% (95% CI 0.32-1.45%), 0.92% (95% CI 0.50-1.77%), and 1.10% (95% CI 0.71-2.16%), respectively. High- and middle-tier FSWs had a significantly lower risk of HIV infection than lower-tier FSWs (high/low: odds ratio (OR) 0.48, 95% CI 0.40-0.59; middle/low: OR 0.49, 95% CI 0.37-0.66). CONCLUSIONS The HIV epidemic has shown a gradual declining or stabilizing trend among Chinese FSWs. Intervention efforts should be diverted to high-risk subgroups of FSWs, such as drug-using and low-tier FSWs.
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Affiliation(s)
- Lei Zhang
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China; Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia; Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia; The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Eric P F Chow
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China; Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia; Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia; The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Shu Su
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Wai Lok Yiu
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Xiaohu Zhang
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Ka I Iu
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Keith Tung
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Rui Zhao
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Peng Sun
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Xiaoshu Sun
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Lei Yuan
- The School of Sociology and Population Studies, Remin University of China, Beijing, China
| | - Kathryn E Muessig
- The University of North Carolina Project-China, Guangzhou, China; Department of Health Behavior, Gillings School of Global Public Health at the University of North Carolina, Chapel Hill, North Carolina, USA
| | - Joseph D Tucker
- The University of North Carolina Project-China, Guangzhou, China; London School of Hygiene and Tropical Medicine, London, UK
| | - Jun Jing
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China; The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia.
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Bien CH, Muessig KE, Lee R, Lo EJ, Yang LG, Yang B, Peeling RW, Tucker JD. HIV and syphilis testing preferences among men who have sex with men in South China: a qualitative analysis to inform sexual health services. PLoS One 2015; 10:e0124161. [PMID: 25875336 PMCID: PMC4395264 DOI: 10.1371/journal.pone.0124161] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 03/13/2015] [Indexed: 11/23/2022] Open
Abstract
Background Health services for men who have sex with men (MSM) are inadequate in many areas around the world. HIV and syphilis test uptake remain suboptimal among MSM in China and many other regions. To inform the development of more comprehensive sexually transmitted disease (STD) testing programs among MSM, we collected descriptive data on MSM testing practices and preferences. Methods MSM in two large urban Chinese cities were recruited through community-based organizations and clinics to participate in semi-structured interviews. We purposively sampled MSM across a range of sociodemographic characteristics and testing history, and assessed preferences for HIV and syphilis testing in the context of facilitators and barriers to testing and previous testing experiences. Each interview transcript was coded and thematically analyzed using Atlas.ti 7.0. Results 35 MSM were interviewed. Confidentiality and privacy were the most important factors influencing participants’ decisions about whether and where to get tested. Men preferred rapid testing (results available within 30 minutes) compared to conventional tests where results take several hours or days to return. Participants described concerns about quality and accuracy of rapid tests offered in non-clinical settings such as community-based organizations. Men preferred testing service providers who were MSM-friendly, non-discriminatory, and medically trained. Preferred service center environments included: convenient but discrete location, MSM-friendly atmosphere, and clean/standard medical facilities. Conclusion Our data highlight the need for HIV/syphilis testing services that are confidential and inclusive of MSM. Rapid testing in decentralized (i.e. peripheral health facilities and community-level, non-clinical venues) settings provides an opportunity to reach individuals who have not been tested before, but must be accompanied by quality assurance systems and technical competence. Implementation research could further evaluate HIV/syphilis testing programs responsive to MSM preferences. Short Summary A qualitative study of MSM in South China found that men preferred rapid STD testing at MSM-focused test centers, but were concerned about test quality assurance and confidentiality.
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Affiliation(s)
- Cedric H. Bien
- University of North Carolina-Project China, Guangzhou, China
- Mount Sinai School of Medicine, New York, United States of America
| | - Kathryn E. Muessig
- University of North Carolina-Project China, Guangzhou, China
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, United States of America
| | - Ramon Lee
- Harvard Medical School, Boston, United States of America
| | - Elaine J. Lo
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, United States of America
| | - Li Gang Yang
- Guangdong Provincial STD Control Center, Guangzhou, China
| | - Bin Yang
- Guangdong Provincial STD Control Center, Guangzhou, China
| | | | - Joseph D. Tucker
- University of North Carolina-Project China, Guangzhou, China
- London School of Hygiene and Tropical Medicine, London, United Kingdom
- School of Medicine, University of North Carolina, Chapel Hill, United States of America
- * E-mail:
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Chow EPF, Muessig KE, Yuan L, Wang Y, Zhang X, Zhao R, Sun P, Sun X, Tucker JD, Jing J, Zhang L. Risk behaviours among female sex workers in China: a systematic review and data synthesis. PLoS One 2015; 10:e0120595. [PMID: 25815481 PMCID: PMC4376708 DOI: 10.1371/journal.pone.0120595] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 02/05/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Commercial sex is one of the major modes of HIV transmission in China. Understanding HIV risk behaviours in female sex workers (FSW) is of great importance for prevention. This study aims to assess the magnitude and temporal changes of risk behaviours in Chinese FSW. METHOD Five electronic databases were searched to identify peer-reviewed English and Chinese language articles published between January 2000 and December 2012 that reported risk behaviours among FSW in China, including condom use, HIV testing, and drug use. Linear regression and Spearman's rank correlation were used to examine temporal trends in these risk factors. The study followed PRISMA guidelines for meta-analyses and was registered in the PROSPERO database for systematic reviews. RESULTS A total of 583 articles (44 English, 539 Chinese) investigating 594,583 Chinese FSW were included in this review. At last sex, condom use was highest with commercial partners (clients), increasing from 53.7% in 2000 to 84.9% in 2011. During this same time period, condom use increased with regular partners from 15.2% to 40.4% and with unspecified partners from 38.6% to 82.5%. Increasing trends were also found in the proportion of sampled FSW who reported testing for HIV in the past 12 months (from 3.2% in 2000 to 48.0% in 2011), while drug use behaviours decreased significantly from 10.9% to 2.6%. CONCLUSION During the first decade of 2000, Chinese FSWs' self-reported risk behaviours have decreased significantly while HIV testing has increased. Further outreach and intervention efforts are needed to encourage condom use with regular partners, continue promotion of HIV testing, and provide resources for the most vulnerable FSW, particularly low tier FSW, who may have limited access to sexual health and prevention programs.
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Affiliation(s)
- Eric P. F. Chow
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
- The Kirby Institute, UNSW Australia, Sydney, New South Wales, Australia
| | - Kathryn E. Muessig
- The University of North Carolina Project-China, Guangzhou, China
- Department of Health Behavior, Gillings School of Global Public Health at the University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Institute for Global Health and Infectious Diseases, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America,
| | - Lei Yuan
- The School of Sociology and Population Studies, Remin University of China, Beijing, China
| | - Yanjie Wang
- The Kirby Institute, UNSW Australia, Sydney, New South Wales, Australia
| | - Xiaohu Zhang
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Rui Zhao
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Peng Sun
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Xiaoshu Sun
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Joseph D. Tucker
- The University of North Carolina Project-China, Guangzhou, China
- Institute for Global Health and Infectious Diseases, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America,
| | - Jun Jing
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
| | - Lei Zhang
- Research Center for Public Health, School of Medicine, Tsinghua University, Beijing, China
- Melbourne Sexual Health Centre, Alfred Health, Melbourne, Victoria, Australia
- Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
- The Kirby Institute, UNSW Australia, Sydney, New South Wales, Australia
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Kongelf A, Bandewar SVS, Bharat S, Collumbien M. Is scale-up of community mobilisation among sex workers really possible in complex urban environments? The case of Mumbai, India. PLoS One 2015; 10:e0121014. [PMID: 25811484 PMCID: PMC4374852 DOI: 10.1371/journal.pone.0121014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 02/09/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND In the last decade, community mobilisation (CM) interventions targeting female sex workers (FSWs) have been scaled-up in India's national response to the HIV epidemic. This included the Bill and Melinda Gates Foundation's Avahan programme which adopted a business approach to plan and manage implementation at scale. With the focus of evaluation efforts on measuring effectiveness and health impacts there has been little analysis thus far of the interaction of the CM interventions with the sex work industry in complex urban environments. METHODS AND FINDINGS Between March and July 2012 semi-structured, in-depth interviews and focus group discussions were conducted with 63 HIV intervention implementers, to explore challenges of HIV prevention among FSWs in Mumbai. A thematic analysis identified contextual factors that impact CM implementation. Large-scale interventions are not only impacted by, but were shown to shape the dynamic social context. Registration practices and programme monitoring were experienced as stigmatising, reflected in shifting client preferences towards women not disclosing as 'sex workers'. This combined with urban redevelopment and gentrification of traditional red light areas, forcing dispersal and more 'hidden' ways of solicitation, further challenging outreach and collectivisation. Participants reported that brothel owners and 'pimps' continued to restrict access to sex workers and the heterogeneous 'community' of FSWs remains fragmented with high levels of mobility. Stakeholder engagement was poor and mobilising around HIV prevention not compelling. Interventions largely failed to respond to community needs as strong target-orientation skewed activities towards those most easily measured and reported. CONCLUSION Large-scale interventions have been impacted by and contributed to an increasingly complex sex work environment in Mumbai, challenging outreach and mobilisation efforts. Sex workers remain a vulnerable and disempowered group needing continued support and more comprehensive services.
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Affiliation(s)
- Anine Kongelf
- London School of Hygiene and Tropical Medicine, 15–17 Tavistock Place, London United Kingdom
| | - Sunita V. S. Bandewar
- Independent Senior Researcher in Global Health, Bioethics and Program Evaluation, C-5, Mantri Avenue—I, Panchavati, Pashan Rd, Pune, India
| | - Shalini Bharat
- School of Health Systems Studies, Tata Institute of Social Sciences, Mumbai, India
| | - Martine Collumbien
- London School of Hygiene and Tropical Medicine, 15–17 Tavistock Place, London United Kingdom
- * E-mail:
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Hu QH, Xu JJ, Zou HC, Liu J, Zhang J, Ding HB, Qian HZ, Li SR, Liu Y, Jiang YJ, Shang H, Wang N. Risk factors associated with prevalent and incident syphilis among an HIV-infected cohort in Northeast China. BMC Infect Dis 2014; 14:658. [PMID: 25471736 PMCID: PMC4265485 DOI: 10.1186/s12879-014-0658-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 11/24/2014] [Indexed: 11/23/2022] Open
Abstract
Background Sexually transmitted infections (STIs) increase HIV infectivity through local inflammatory processes. Prevalent and incident STIs among people who live with HIV/AIDS (PLWHA) are indicators of high-risk sexual behaviors and imply potential spread of HIV. Little is known about the prevalence and incidence of concurrent syphilis and associated risk behaviors among PLWHA in China. Methods A retrospective cohort study was conducted among PLWHA who attended the outpatient clinic of a designated AIDS treatment hospital in Shenyang, China, between March 2009 and May 2013. Physical examinations and syphilis serology were conducted at each visit. A questionnaire on demographic characteristics was also collected. Results A total of 1010 PLWHA were enrolled, of whom 77.0% were men who have sex with men (MSM). The baseline syphilis prevalence among PLWHA was 19.8% (95% confidence interval [CI]:17.3–22.3%). During follow-up, 78.3% retained in the cohort, and contributed a median follow-up of 9.4 months (interquartile range: 5.9-18.7 months). Syphilis incidence among PLWHA was 18.7 (95% CI: 15.5–21.8) per 100 person years. Mulitvariate logistic analysis showed that receiving antiretroviral therapy (ART) (adjusted OR [aOR] = 0.48), older age (≥40 years vs. ≤24 years, aOR = 2.43), being MSM (aOR = 2.30) and having higher baseline HIV viral load (>100000 copies/mL vs. ≤100000 copies/mL, aOR = 1.56) were independent predictors for syphilis infection among PLWHA at enrollment (p < 0.05 for all). Mulivariate Cox regression found that receiving ART (adjusted hazard ratio [aHR] = 1.81), older age (≥40 years vs. ≤24 years, aHR: 5.17) and MSM status (aHR = 2.68) were independent risk factors for syphilis seroconversion (each p < 0.05). Conclusions Syphilis prevalence and incidence were high among PLWHA in Shenyang. A campaign focusing on detection and treatment of syphilis among PLWHA is urgently needed, especially one with a focus on MSM who are at a higher risk for syphilis. Electronic supplementary material The online version of this article (doi:10.1186/s12879-014-0658-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Qing-hai Hu
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Jun-jie Xu
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Hua-chun Zou
- School of Public Health and Community Medicine, The University of New South Wales, Sydney, 2052, Australia.
| | - Jing Liu
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Jing Zhang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Hai-bo Ding
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Han-Zhu Qian
- Vanderbilt Institute for Global Health, Vanderbilt University, Nashville, TN, USA.
| | - Si-ruo Li
- English Department, University of Tennessee at Chattanooga, Chattanooga, TN, USA.
| | - Yu Liu
- Vanderbilt Institute for Global Health, Vanderbilt University, Nashville, TN, USA.
| | - Yong-jun Jiang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Hong Shang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Ning Wang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, 110001, P. R. China. .,National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
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Liu AY, Zang WJ, Yuan LL, Chai YL, Wang S. Latent syphilis among inpatients in an urban area of China. Glob J Health Sci 2014; 7:249-53. [PMID: 25948433 PMCID: PMC4802072 DOI: 10.5539/gjhs.v7n3p249] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 09/11/2014] [Indexed: 11/25/2022] Open
Abstract
We aimed at investigating the epidemiological features of latent syphilis among inpatients in an urban area of China. During the period of Jan 1999 to Dec 2007, 146 inpatients were positive for treponema pallidum particle agglutination (TPPA) assay from 22,454 inpatients who were admitted to the China Meitan General Hospital. The number of latent syphilis increased steadily during this period of time. From the 146 TPPA positive inpatients, 137 inpatients were diagnosed as latent syphilis. The number of male patients with latent syphilis was slightly more than the female, but there was no statistical significance (P>0.01). The number of male patients over 60 years old was 42 (30.66%), which was higher than other age groups (p<0.05). The number of female patients at the age range of 20-29 years was 20 (14.60%), which was higher than other age groups (p<0.05). Our results demonstrated that routine syphilis screening among inpatients proves to be one of the most effective precautionary measures to identify latent syphilis and thus to prevent transmission in urban areas in China.
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Affiliation(s)
| | | | | | | | - ShuQi Wang
- Radiology Department, Stanford School of Medicine.
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Abstract
Syphilis is a chronic, multi-stage infectious disease that is usually transmitted sexually by contact with an active lesion of a partner or congenitally from an infected pregnant woman to her fetus. Although syphilis is still endemic in many developing countries, it has re-emerged in several developed countries. The resurgence of syphilis is a major concern to global public health, particularly since the lesions of early syphilis increase the risk of acquisition and transmission of infection with human immunodeficiency virus (HIV). Because there is no vaccine to prevent syphilis, control is mainly dependent on the identification and treatment of infected individuals and their contacts with penicillin G, the first-line drug for all stages of syphilis. The emergence of clinically significant azithromycin resistance in Treponema pallidum subsp. pallidum, the syphilis agent, has resulted in treatment failures, thus precluding the routine use of this second-line drug. Information is presented here on the diagnosis and recommended antibiotic treatment of syphilis and the challenge of macrolide-resistant T. pallidum.
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Wu J, Hu Y, Jia Y, Su Y, Cui H, Liu H, Wang N. Prevalence of unprotected anal intercourse among men who have sex with men in China: an updated meta-analysis. PLoS One 2014; 9:e98366. [PMID: 24874882 PMCID: PMC4038612 DOI: 10.1371/journal.pone.0098366] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 05/01/2014] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE The purpose of this review was to assess the prevalence of unprotected anal intercourse (UAI) among men who have sex with men (MSM) in China. METHODS A comprehensive search was conducted including online databases like "Wanfang", Chinese National Knowledge Infrastructure, PubMed and manual searches. Analyses using random-effects models were performed to estimate the prevalence of UAI among MSM in China. RESULTS Sixty-two articles reporting eighty-two studies were selected. The pooled prevalence rates of UAI with any male partner, with regular male partners, with non-regular male partners, with casual male partners, and with commercial male partners among MSM were 53%(95%CI: 51-56%), 45%(95%CI: 39-51%), 34%(95%CI: 24-45%), 33%(95%CI: 30-36%), 12% (95%CI: 5-26%), respectively. A cumulative meta-analysis found that the pooled UAI prevalence decreased over time. CONCLUSIONS Although the prevalence of UAI with male partners among MSM in China presents a decreasing trend over the past decade, the concomitant rise in HIV prevalence and incidence indicates that current prevention intervention efforts are insufficient to effectively contain the spread of HIV. Therefore, the persistently high prevalence of risky sexual behaviors underscores the need for innovative and effective prevention strategies among MSM.
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Affiliation(s)
- Jing Wu
- National Center for AIDS/STD Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
| | - Yifei Hu
- National Center for AIDS/STD Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
| | - Yujiang Jia
- Department of Preventive Medicine, School of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Yingying Su
- National Center for AIDS/STD Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
| | - Huixia Cui
- College of Nursing, Liaoning Medical University, Jinzhou, Liaoning, China
| | - Huixin Liu
- National Center for AIDS/STD Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
| | - Ning Wang
- National Center for AIDS/STD Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
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Liu XY, Hao C, Jiang H, Sun L, Zhou JB, Yin YP, Tang W, Jiang N, Mahapatra T, Mahapatra S, Chen XS, Yang HT, Fu GF, Huan XP. Syphilis and its correlates among heterosexual males attending sexually transmitted infection clinics - observation from a multicity cohort in Jiangsu Province, China. PLoS One 2014; 9:e95289. [PMID: 24743839 PMCID: PMC3990697 DOI: 10.1371/journal.pone.0095289] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 03/25/2014] [Indexed: 11/23/2022] Open
Abstract
Objectives To estimate the prevalence of HIV and syphilis, incidence of syphilis and to identify the correlates of syphilis infection among heterosexual male attendees of sexually transmitted infection (STI) clinics (MSC). Methods A cohort study of one-year duration was conducted in Yangzhou and Changzhou cities in Jiangsu province of China. The baseline survey commenced in June 2009, recruited 1225 consenting adult MSCs (609 in Yangzhou and 617 in Changzhou) through STI-clinic based convenience sampling. Results Baseline HIV and syphilis prevalence were 0.49% and 17.29% respectively. Syphilis incidence rate was 7.22 per 100 person-years (6.53 in Yangzhou and 7.76 in Changzhou) during the 6-month follow-up with retention fractions of 27.38% and 35.15% for Yangzhou and Changzhou respectively. Majority of the participants were middle-aged, high school educated, married, living with partners and non-migrants. Very few subjects reported recent and consistent condom-use with regular partners. Although considerable number of MSCs reported recent sexual exposure with female sex workers (FSW) and non-FSW casual partners, the proportion of reported condom use was very low during those exposures. In multivariate analyses higher age, having recent sex with FSWs and being HIV-positive were associated with higher syphilis sero-positivity while higher education was protective. In bivariate analyses, being married, divorced/widowed, official residency of the study cities and non-use of condom with regular partners predicted higher risk. Conclusions Considering the potential bridging role of MSCs between high and low-risk populations, effective intervention strategies among them targeting the correlates of syphilis infection are urgently called for in Jiangsu province of China.
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Affiliation(s)
- Xiao-Yan Liu
- Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
| | - Chao Hao
- Changzhou Center for Disease Prevention and Control, Nanjing, China
| | - Hui Jiang
- Yangzhou Center for Disease Prevention and Control, Nanjing, China
| | - Lin Sun
- Yangzhou Center for Disease Prevention and Control, Nanjing, China
| | - Jian-Bo Zhou
- Changzhou Center for Disease Prevention and Control, Nanjing, China
| | - Yue-Ping Yin
- National Center for STDs Control, China CDC, Nanjing, China
| | - Weiming Tang
- Department of Epidemiology, School of Public Health, University of California Los Angeles, Los Angeles, California, United States of America
| | - Ning Jiang
- National Center for STDs Control, China CDC, Nanjing, China
| | - Tanmay Mahapatra
- Department of Epidemiology, School of Public Health, University of California Los Angeles, Los Angeles, California, United States of America
| | - Sanchita Mahapatra
- Department of Epidemiology, School of Public Health, University of California Los Angeles, Los Angeles, California, United States of America
| | | | - Hai-Tao Yang
- Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
| | - Geng-Feng Fu
- Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
| | - Xi-Ping Huan
- Jiangsu Provincial Center for Disease Prevention and Control, Nanjing, China
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Abstract
With the widespread use of combination antiretroviral therapy (cART), the incidence of central nervous system (CNS) opportunistic infections and coinfections has significantly decreased. This review focuses on the clinical presentation, diagnostic laboratory and radiologic findings, as well as the treatment of neurosyphilis, progressive multifocal leukoencephalopathy, primary CNS lymphoma, and toxoplasmosis, which are CNS opportunistic infections and coinfections that are most relevant to clinicians in North America.
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Affiliation(s)
- Emily L. Ho
- Department of Neurology, Harborview Medical Center, Seattle, Washington
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Gao J, Xu J, Sheng Y, Zhang X, Zhang C, Li Y, Liang B, Sun L, Yang S, Zhang X. Increasing trend of syphilis and infection resistance: a retrospective study. Int J Infect Dis 2013; 17:e971-6. [DOI: 10.1016/j.ijid.2013.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/10/2013] [Accepted: 05/13/2013] [Indexed: 11/30/2022] Open
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Abstract
Syphilis, cholera and TB have re-emerged and now affect the health of countless humans globally. In this article, we review current information concerning the biology and epidemiology of these bacterial diseases with the goal of developing a better understanding of factors that have led to their resurgence and that threaten to compromise their control. The impact of microbial and environmental change notwithstanding, the main factors common to the re-emergence of syphilis, cholera and TB are human demographics and behavior. This information is critical to developing targeted strategies aimed at preventing and controlling these potentially deadly infectious diseases.
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Affiliation(s)
- Lola V Stamm
- Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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29
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Wang XB, Tucker JD, Yang L, Zheng H, Zhang F, Cohen MS, Yang B, Cai W. Unsafe Sex and STI Prevalence Among HIV-Infected Adults in Guangzhou, China: Opportunities to Deamplify Sexual HIV Transmission. AIDS Behav 2013; 17:1137-43. [PMID: 23054038 DOI: 10.1007/s10461-012-0322-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
This project examined sexual behavior and STI prevalence among HIV-infected individuals in South China. Adult HIV-infected outpatients in Guangzhou, Guangdong Province, China completed a self-administered survey about behaviors and antiretroviral treatment. Participants were screened for syphilis, gonorrhea, and chlamydia. Univariate and multivariate relationships with any STI were calculated using logistic regression. 810 HIV-infected individuals participated and 3 refused. 52.5 % (n = 415) of individuals reported having sex in the past 3 months, among whom 26.4 % (n = 111) reported inconsistent condom use. 10.4 % (n = 84) of all individuals had at least one sexually transmitted infection (STI). HIV-infected individuals not on antiretroviral treatment had an increased STI risk (aOR 2.5, 95 % CI: 1.4-4.5, P = 0.002). Unsafe sex was markedly reduced among HIV-infected individuals on treatment, possibly a reflection of integrated ART initiation counseling. Improved STI services among HIVinfected individuals are urgently needed to deamplify sexual HIV transmission.
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Affiliation(s)
- Xiao B Wang
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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30
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Zhou Y, Li X, Zhang C, Tan G, Stanton B, Zhang X, Cui Y. Rates of HIV, syphilis, and HCV infections among different demographic groups of female sex workers in Guangxi China: evidence from 2010 national sentinel surveillance data. AIDS Care 2013; 25:1433-41. [PMID: 23438031 DOI: 10.1080/09540121.2013.772282] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
To examine the prevalence of HIV, syphilis, and hepatitis C virus (HCV) infections by demographic characteristics and identify the subgroups of female sex workers (FSW) who are at a higher risk of the infections. Secondary analysis of the 2010 National Sentinel Surveillance (NSS) data was conducted in the current study. A total of 12,622 FSW recruited from 35 NSS sites in Guangxi, China were included in the analysis. FSW were tested for HIV, syphilis, and HCV. The overall prevalence of HIV, syphilis, and HCV infections were 1.0, 6.1, and 1.0%, respectively. The prevalence of HIV and syphilis infections was significantly higher among women who were 40 years of age or older, worked in small commercial sex venues or on the street, were divorced or widowed, or had no formal schooling. A very high HIV infection prevalence (8.2%) was observed among a small number of cross-border foreign FSW (n=49). The prevalence of HCV infection did not differ by most of the demographic characteristics. Living in other provinces or being a Zhuang-ethnic served as protective factors for HCV. The multivariable analyses confirmed the bivariate results suggesting higher prevalence of HIV and syphilis infections among FSW who were older, divorced or widowed, or had no formal schooling. Future HIV intervention prevention efforts among FSW need to pay particular attention to these women in order to effectively curtail the infections among this most-at-risk population as well as to prevent the further spread of HIV and syphilis to other populations.
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Navadeh S, Mirzazadeh A, Mousavi L, Haghdoost AA, Fahimfar N, Sedaghat A. HIV, HSV2 and Syphilis Prevalence in Female Sex Workers in Kerman, South-East Iran; Using Respondent-Driven Sampling. IRANIAN JOURNAL OF PUBLIC HEALTH 2012; 41:60-5. [PMID: 23641392 PMCID: PMC3640783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Accepted: 11/15/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND We estimated the prevalence of HIV, sexually transmitted infections (STIs), and risky behaviors among female sex workers (FSW) in Kerman City, Iran. METHODS Women, 18 years or older, who reported selling sex for at least 6 months during their lifetime and had at least one sexual contact with a client in the recent 12 months were sampled using Responding Driven Sampling (RDS). Participants were interviewed about their sexual behaviors and provided whole blood for HIV, syphilis, and Herpes simplex type 2 (HSV2) testing. Data were analyzed using RDSAT Version 6.0 software. RESULTS Among samples of 177 FSW, we did not find any HIV positive cases. The weighted prevalence of syphilis and HSV2 were 7.2% and 18.0%, respectively. The reported STI syndromes for the proceeding year of the survey were 36%. Unprotected sexual contact was about 17-22% and link to injecting drug users through injection was about 18%. CONCLUSION While this survey found no HIV, there were findings of risky sexual behaviors and STI, markers for potential infection for HIV. The prevalence of STI and sexual risk behaviors for HIV is considerably high in this subpopulation that alarming for an urgent public health preventive measures and national control-plan to be developed and implemented.
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Affiliation(s)
- S Navadeh
- Regional Knowledge Hub for HIV/AIDS Surveillance, Kerman University of Medical Sciences, Kerman, Iran,Dept. of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - A Mirzazadeh
- Regional Knowledge Hub for HIV/AIDS Surveillance, Kerman University of Medical Sciences, Kerman, Iran,Dept. of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran,Corresponding Author:
| | - L Mousavi
- Regional Knowledge Hub for HIV/AIDS Surveillance, Kerman University of Medical Sciences, Kerman, Iran
| | - AA Haghdoost
- Research Center for Modeling in Health, Institute of Futures Studies in Health, Kerman University of Medical Sciences, Iran
| | - N Fahimfar
- Center for Disease Control (CDC) of Iran, Ministry of Health and Medical Education, Tehran, Iran
| | - A Sedaghat
- Center for Disease Control (CDC) of Iran, Ministry of Health and Medical Education, Tehran, Iran
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Grimes M, Sahi SK, Godornes BC, Tantalo LC, Roberts N, Bostick D, Marra CM, Lukehart SA. Two mutations associated with macrolide resistance in Treponema pallidum: increasing prevalence and correlation with molecular strain type in Seattle, Washington. Sex Transm Dis 2012; 39:954-8. [PMID: 23191949 PMCID: PMC3668457 DOI: 10.1097/olq.0b013e31826ae7a8] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Although azithromycin promised to be a safe and effective single-dose oral treatment of early syphilis, azithromycin treatment failure has been documented and is associated with mutations in the 23S rDNA of corresponding Treponema pallidum strains. The prevalence of strains harboring these mutations varies throughout the United States and the world. We examined T. pallidum strains circulating in Seattle, Washington, from 2001 to 2010 to determine the prevalence of 2 mutations associated with macrolide resistance and to determine whether these mutations were associated with certain T. pallidum strain types. METHODS Subjects were enrolled in a separate ongoing study of cerebrospinal fluid abnormalities in patients with syphilis. T. pallidum DNA purified from blood and T. pallidum strains isolated from blood or cerebrospinal fluid were analyzed for two 23S rDNA mutations and for the molecular targets used in an enhanced molecular stain typing system. RESULTS Nine molecular strain types of T. pallidum were identified in Seattle from 2001 to 2010. Both macrolide resistance mutations were identified in Seattle strains, and the prevalence of resistant T. pallidum exceeded 80% in 2005 and increased through 2010. Resistance mutations were associated with discrete molecular strain types of T. pallidum. CONCLUSIONS Macrolide-resistant T. pallidum strains are highly prevalent in Seattle, and each mutation is associated with discrete strain types. Macrolides should not be considered for treatment of syphilis in regions where prevalence of the mutations is high. Combining the resistance mutations with molecular strain typing permits a finer analysis of the epidemiology of syphilis in a community.
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Zhang C, Li X, Hong Y, Zhou Y, Liu W, Stanton B. Unprotected sex with their clients among low-paying female sex workers in southwest China. AIDS Care 2012; 25:503-6. [PMID: 23062062 DOI: 10.1080/09540121.2012.726345] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
China has been experiencing a rapid increase in the HIV epidemic for decades. Commercial sex plays a critical role in heterosexual transmission of HIV. Limited studies suggested that low-paying female sex workers (FSWs) faced a higher risk of HIV infection. Low-paying FSWs are women who usually encounter their clients on the street or small establishments in rural or less-developed areas, or who charge low fees for each sexual service. A total of 720 low-paying FSWs from 130 commercial sex venues/locations in southwest China were included in the data analysis. Multivariate regression models were employed to examine the associations of unprotected sex with a number of exploratory variables among the study sample. About 33.9 and 61.5% of low-paying FSWs reported unprotected sex with clients in the last sex act and in the last month, respectively. After controlling for confounders, women's HIV knowledge, risk perception, experience of police arrest, and venue types were significantly associated with unprotected sex among low-paying FSWs. Low-paying FSWs are at an alarmingly high risk of HIV infection. HIV prevention programs are urgently needed to address risk factors posit in both individual and contextual levels among this most-at-risk population in order to curb the HIV epidemic in China.
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Affiliation(s)
- Chen Zhang
- Rollins School of Public Health, Emory University, Atlanta, GA, USA.
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