Incidence of new HIV infection and its influencing factors among men who have sex with men in China: a meta-analysis
HE Jiajin1, JU Hao2, WU Chao3
1. School of Public Health, Zhejiang University, Hangzhou, Zhejiang 310058, China; 2. School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China; 3. School of Public Affairs, Zhejiang University, Hangzhou, Zhejiang 310058, China
Abstract：Objective To investigate the incidence of new HIV infection and its influencing factors among men who have sex with men ( MSM ) in China, so as to provide the evidence for formulating the AIDS control strategy. Methods Cohort studies pertaining to new HIV infections among Chinese MSM populations were retrieved in Chinese and English electronic databases, including CNKI, Wanfang Data, VIP, PubMed, Web of Science, Embase and Cochrane Library, and the retrieval time was set to build the database until May 2021. A meta-analysis was performed to investigate the incidence of new HIV infection and its influencing factors among Chinese MSM populations. The publication bias was assessed using funnel plot and Egger's test, and the stability of outcome parameters was evaluated using sensitivity analysis. Results A total of 850 publications were retrieved, and 43 eligible literatures ( 44 studies ) were included in the final analysis. The pooled incidence of new HIV infection was 4.93 ( 95%CI: 4.15 to 5.72) per 100 person-years among Chinese MSM populations. Egger's test showed a publication bias ( t=2.411, P=0.021). Subgroup analysis revealed high incidence of new HIV infection in east ( 5.21 per 100 person-years ), north ( 5.30 per 100 person-years ) and southwest (4.84 per 100 person-years) China, and the lowest incidence in northwest China ( 2.87 per 100 person-years ), and showed higher incidence in first-tier cities ( 5.12 per 100 person-years ) than in nonfirst-tier cities ( 3.89 per 100 person-years ). Syphilis infection ( HR=3.41 ), unprotected anal sex ( HR=2.52 ), multiple sexual partners ( HR=3.51 ), seeking sex partners in bars, public baths and parks ( HR=3.44 ), age of > 25 years ( HR=0.44 ), Han Ethnicity ( HR=0.35 ), awareness of AIDS-related knowledge ( HR=0.20 ) and provision of HIV preventive services ( HR=0.18 ) were associated with new HIV infection in Chinese MSM populations. In addition, publication bias was found in studies reporting syphilis infection ( t=4.841, P<0.001 ), unprotected anal sex ( t=4.114, P=0.006 ) and ethnicity ( t=-5.018, P=0.038 ). Conclusions The incidence of new HIV infection is high among Chinese MSM populations. Interventions targeting the factors affecting new HIV infections are required to reduce in the incidence of new HIV infections among Chinese MSM populations.
何佳晋, 居豪, 吴超. 中国MSM人群HIV新发感染率及其影响因素的Meta分析[J]. 预防医学, 2022, 34(1): 70-77.
HE Jiajin, JU Hao, WU Chao. Incidence of new HIV infection and its influencing factors among men who have sex with men in China: a meta-analysis. Preventive Medicine, 2022, 34(1): 70-77.
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