Overall effects | Sample size | No. of studies | Model | Estimated rate (%) | 95Â % CI (%) | Test of heterogeneity | ||
---|---|---|---|---|---|---|---|---|
Q | P value | I2 (%) | ||||||
AIDS-related knowledge | 1754 | 8 | Random | 83.9 | 78.0 to 89.9 | 228.0 | <0.01 | 95.6 |
The first sexual partner is male | 1298 | 4 | Random | 85.3 | 82.4 to 88.3 | 14.0 | 0.03 | 57.1 |
Having more than one male partner in the last 6Â months | 1851 | 7 | Random | 58.2 | 51.1 to 65.4 | 89.9 | <0.01 | 90.0 |
Having homosexual anal intercourse in the last 6Â months | 1529 | 7 | Random | 81.9 | 76.7 to 87.1 | 74.2 | <0.01 | 87.9 |
Using condom during the last homosexual anal intercourse | 1621 | 7 | Random | 57.5 | 49.8 to 65.1 | 94.7 | <0.01 | 90.5 |
UAI in the last 6Â months | 2671 | 11 | Random | 65.2 | 60.2 to 70.1 | 96.61 | <0.01 | 86.5 |
HIV infection | 3090 | 13 | Random | 3.8 | 2.5 to 5.1 | 78.41 | <0.01 | 80.9 |
Syphilis infection | 2636 | 11 | Fixed | 4.6 | 3.8 to 5.4 | 11.08 | 0.6 | 0 |