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Table 2 Stratified analyses of HIV prevalence among MSM in China

From: The prevalence of HIV among MSM in China: a large-scale systematic analysis

VariableNumber of studiesHIV prevalenceHeterogeneity of included studies
I2QpOR
Age (yrs.)
 <20334.6% [3.4%; 6.3%]64.0%79.4<  0.0001 
 20-29327.2% [5.9%; 8.7%]91.6%276.2<  0.0001 
 30-393011.8%[10.0%; 13.8%]75.2%120.8<  0.0001 
 40-493013.8%[11.0%; 17.1%]51.8%37.40.0047 
 50+1319.3%[13.1%; 27.4%]50.2%26.10.0166 
Sampling methods
 RDS395.4% [4.7%; 6.3%]90.3%627.4<  0.0001 
 Snowball1266.4% [5.9%; 7.0%]96.6%3132.0<  0.0001 
 Time-venue835.4% [4.6%; 6.3%]96.9%2694.4<  0.0001 
 Convenience114.2% [3.3%; 7.3%]96.2%173.5<  0.0001 
 Multiple methods425.0% [3.9%; 6.4%]99.0%3762.7<  0.0001 
Marital status
 Single576.4% [5.5%; 7.5%]94.5%876.3<  0.0001 
 Cohabitating2111.5% [7.8%; 16.5%]67.8%65.3<  0.0001 
 Married4210.6% [9.2%; 12.0%]72.5%152.9<  0.0001 
 Divorced or widowed4912.8%[10.0%; 16.4%]81.6%240.9<  0.0001 
Current level of education
 Illiterate316.8% [6.4%;37.3%]0.0%0.80.6683 
 Primary school1115.6% [11.0%;21.6%]25.4%14.70.1948 
 Junior high school209.8% [7.4%; 12.9%]86.8%151.8<  0.0001 
 Senior high school507.6% [6.4%; 9.0%]89.5%428.6<  0.0001 
 College or above625.7% [5.0%; 6.5%]]87.7%464.9<  0.0001 
Sexual orientation
 Homosexual237.0% [5.4%; 9.1%]93.4%540.3<  0.0001 
 Bisexual106.1% [4.5%; 8.3%]69.0%32.20.0004 
 Heterosexual117.5% [4.4%; 12.7%]59.3%27.00.0045 
 Undetermined77.6% [3.2%; 16.8%]0.0%15.40.0175 
Main location to seek homosexual partners
 Internet207.3% [5.8%; 9.1%]94.2%314.7<  0.0001 
 Parks196.0% [4.8%; 7.4%]38.2%38.20.0037 
 Public bathhouses/saunas2213.4%[10.3%; 17.1%]88.6%162.3<  0.0001 
 Bar/night/club/tearoom237.4% [5.8%; 9.3%]98.9%141.2<  0.0001 
Ethnicity
 Han Chinese156.3% [4.9%; 8.0%]95.6%317.7<  0.00010.78[0.30,2.03]
 Other157.0% [3.4%; 14.0%]93.6%218.9<  0.0001
Condom use (in the last 6 months)
 During sex with men
  Always274.4% [3.3%; 5.8%]91.1%321.5<  0.0001 
  Sometimes278.2% [6.3%; 10.5%]96.0%510.5<  0.0001 
  Never279.9% [7.4%;13.1%]84.5%145.1<  0.0001 
 During commercial sex with men
  Always152.9% [1.6%; 5.0%]69.8%39.8<  0.0001 
  Sometimes156.6% [4.0%; 10.7%]85.2%59.8<  0.0001 
  Never148.5% [5.3%; 13.2%]26.3%23.70.0345 
Condom use during sex with a woman in the past 6 months
 Always114.1% [2.5%; 6.4%]48.1%20.50.021 
 Sometimes93.4% [1.7%; 6.6%]80.2%42.4<  0.0001 
 Never105.9% [3.2%; 10.7%]86.9%71.4<  0.0001 
Occupation
 Student126.1% [4.5%; 8.4%]59.8%29.80.0029 
 Teacher25.3% [1.1%; 22.8%]0.0%0.60.7348 
 Office staff128.0% [6.2%; 10.2%]76.2%50.5<  0.0001 
 Farmer214.8% [3.8%; 43.2%]93.4%30.3<  0.0001 
 Service business employee88.1% [5.6%; 11.6%]90.3%82.7<  0.0001 
 Jobless or job-seeking910.3% [8.4%; 12.6%]31.2%13.10.159 
 Worker88.6% [7.5%; 9.9%]33.1%12.00.1533 
Sexual debut partner
 Male86.8% [4.0%; 10.1%]95.4%152.8<  0.00010.60[0.53,0.69]
 Female810.2% [6.6%; 14.4%]94.5%127.4<  0.0001
Drug use
 Yes76.4% [4.2%; 10.0%]42.9%10.50.10461.14[0.31,4.21]
 No78.2% [2.4%; 17.0%]99.2%770.7<  0.0001
Quality ssessment
 satisfactory1425.5% [4.6%; 6.6%]96.5%2481.5<  0.00010.74[0.60, 0.92]
 good2137.4% [6.5%;8.4%]97.7%%1823.0<  0.0001
  1. Figures in parentheses are 95% CIs; OR, odds ratio