Table 3.
Univariate and multivariate analysis of predictors of virological failure
| Characteristics | Unadjusted RR PR (95% CI) |
p-value1 | Adjusted PRR (95% CI) |
p-value2 |
|---|---|---|---|---|
| Age categories | ||||
| < 30 | 1.00 | 1.00 | ||
| 30–39 | 0.57 (0.42–0.77) | < 0.001 | 0.45 (0.31–0.67) | < 0.001 |
| 40–49 | 0.56 (0.41–0.76) | < 0.001 | 0.42 (0.28–0.63) | < 0.001 |
| 50 + | 0.37 (0.26–0.54) | < 0.001 | 0.23 (0.14–0.39) | < 0.001 |
| Marital status | ||||
| Married | 0.73 (0.60–0.91) | 0.004 | 0.71 (0.55–0.97) | 0.021 |
| Others | 1.00 | .00 | ||
| Service entry point | ||||
| Voluntary counseling and testing | 1.61 (1.25–2.07) | < 0.001 | 1.45 (1.11–1.91) | 0.007 |
| Others | 1.00 | 1.00 | ||
| WHO stage | ||||
| 1 or 2 | 1.00 | < 0.001 | 1.00 | 0.003 |
| 3 or 4 | 0.52 (0.41–0.74) | 0.63 (0.46–0.85) | ||
| CD4 cell count < 200, cells/mm3 | ||||
| < 200 | 1.43 (1.16–1.76) | < 0.001 | 1.71 (1.36–2.16) | < 0.001 |
| 200 + | 1.00 | 1.00 | ||
1 Relative riskPrevalence Ratio (PRR), 95% confidence interval (CI) and p-values were calculated using log binomial regression
2 Multivariate models included all predictors significant at p value < 0.20