Table 2 Stratified meta-analyses of HIV prevalence among older MSM of China
Subgroups | Prevalence % (95% CI) | No of studies | Heterogeneity | |
|---|---|---|---|---|
I2% | p Value | |||
Sample size | Â | Â | Â | Â |
> 200 | 7.2%(5.4%-9.5%) | 3 | 70.67 | <0.05 |
≤ 200 | 13.6%(8.4%-21.2%) | 17 | 55.86 | <0.05 |
Study year | Â | Â | Â | Â |
2003-2007 | 9.9%(2.7%-30.6%) | 4 | 89.30 | <0.05 |
2008-2009 | 12.1%(6.8%-20.5%) | 9 | 81.04 | <0.05 |
2010-2011 | 13.6%(8.2%-21.8%) | 7 | — | >0.05 |
Study location | Â | Â | Â | Â |
East China | 13.0%(6.8%-23.4%) | 8 | 32.12 | >0.05 |
Nationwide | 7.2%(5.4%-9.5%) | 3 | 70.67 | <0.05 |
North China | 14.7%(2.7%-51.5%) | 2 | 70.91 | >0.05 |
South China | 12.3%(3.3%-36.6%) | 3 | 35.25 | >0.05 |
Southwest | 16.4%(2.8%-57.4%) | 3 | 83.90 | <0.05 |
West China | 9.5%(2.4%-31.1%) | 1 | — | <0.05 |
Recruitment settings | Â | Â | Â | Â |
Medical settings | 7.9%(6.7%-9.3%) | 11 | — | >0.05 |
Multiple gay venues or events | 17.4%(7.6%-35.0%) | 9 | 89.20 | <0.05 |
Sampling method | Â | Â | Â | Â |
Mixed | 15.5%(8.0%-27.8%) | 10 | 52.88 | <0.05 |
RDS | 8.0%(6.7%-9.6%) | 2 | 2.98 | >0.05 |
Snowballing | 9.8%(4.7%-19.2%) | 8 | 78.12 | <0.05 |