Sample size for the factors associated with viral suppression
| Factors associated with viral suppression | % outcome among unexposed | AOR (95% CI) | Total sample size | Reference |
| Nevirapine-based ART | 68.9 | 1.95 (1.45 to 2.63) | 418 | 6 |
| Poor adherence | 57.1 | 1.905 (0.80 to 4.55) | 362 | 6 |
| PI-based ART | 69.5 | 1.81 (0.71 to 4.60) | 522 | 6 |
AOR, adjusted OR; ART, antiretroviral therapy; PI, protease inhibitor.