Table 3.
Final Cox Regression Model for Independent Predictors of Time to Death Among Enrollees in the Perinatal AIDS Collaborative Transmission Study (PACTS/PACTS-HOPE) (1986–2004)
| Predictor | Hazard ratio (95% CI) | Pa |
| Birth yearb | 0.9 (0.85–0.99) | .029 |
| HAART | ||
| Yes | 0.3 (0.08–0.76) | .015 |
| No | 1.0 | |
| CD4 T cells, % | ||
| <15 | 2.0 (1.24–3.20) | .004 |
| 15 to <25 | 0.8 (0.49–1.46) | .546 |
| ≥25 | 1.0 | |
| Anthropometrics | ||
| HAZc | 0.9 (0.84–0.96) | .001 |
| WAZc | 0.7 (0.66–0.80) | <.001 |
| Maternal AIDS classification | .05 | |
| Class C | 1.5 (1.00–2.32) | |
| Class A or B | 1.0 |
Abbreviations: CI, confidence interval; HAZ, height-for-age Z score ; HAART, highly active antiretroviral therapy; WAZ, weight-for-age Z score.
a
χ2 test.
b
Per 1-year increment.
c
Per 1–standard deviation increment.