Table 1.
Prevalence, % | 95% confidence intervals | No. studies | No. participants | Heterogeneity | Egger test | P value, difference | ||
---|---|---|---|---|---|---|---|---|
I2, % | P value | |||||||
Global | 36.1 | 33.7–38.5 | 329 | 462 104 | 99.5 | < 0.0001 | 0.0002 | … |
All participants on ART | 34.5 | 31.8–37.2 | 268 | 420 575 | 99.6 | < 0.0001 | 0.0001 | … |
Country level of income | ||||||||
Low | 10.1 | 6.8–14.1 | 30 | 11 329 | 95.9 | < 0.0001 | 0.095 | < 0.0001 |
Lower-middle | 16.0 | 8.6–25.3 | 21 | 9858 | 98.7 | < 0.0001 | 0.496 | |
Upper-middle | 27.6 | 23.8–31.6 | 39 | 8252 | 90.4 | < 0.0001 | 0.668 | |
High | 45.2 | 42.7–47.7 | 216 | 339 022 | 99.5 | < 0.0001 | 0.527 | |
UNAIDS region | ||||||||
West and Central Africa | 4.4 | 2.9–6.3 | 12 | 4868 | 87.0 | < 0.0001 | 0.263 | < 0.0001 |
Eastern and Southern Africa | 10.7 | 7.8–14.0 | 34 | 12 676 | 94.8 | < 0.0001 | 0.080 | |
Latin America and the Caribbean | 28.8 | 25.0–32.8 | 24 | 16 385 | 95.9 | < 0.0001 | 0.162 | |
Asia and Pacific | 32.6 | 26.6–38.9 | 27 | 16 352 | 97.3 | < 0.0001 | 0.031 | |
Middle East and North Africa | 32.9 | 16.1–52.4 | 3 | 320 | 93.0 | < 0.0001 | 0.711 | |
Eastern Europe and Central Asia | 43.1 | 15.8–72.9 | 2 | 264 | 95.9 | < 0.0001 | NA | |
West and Central Europe and North America | 45.4 | 42.7–48.1 | 203 | 293 547 | 99.5 | < 0.0001 | 0.339 |
HIV Human immunodeficiency virus, ART antiretroviral therapy, UNAIDS Joint United Program on HIV, NA not applicable