Table 3. Kaplan-Meier estimates of rates of HIV transmission and infant death.
| HIV Transmission (n = 487) | Infant Death (n = 491) | Combined Outcome (n = 491) | |||||||
| Age | Events | Rate | 95% CI | Events | Rate | 95% CI | Events | Rate | 95% CI |
| 7 d | 12 | 2.5 | (1.4–4.3) | 7 | 1.4 | (0.7–3.0) | 19 | 3.9 | (2.5–6.0) |
| 14 d | 14 | 2.9 | (1.7–4.8) | 9 | 1.8 | (1.0–3.5) | 23 | 4.7 | (3.1–7.0) |
| 30 d | 19 | 3.9 | (2.5–6.1) | 9 | 1.8 | (1.0–3.5) | 28 | 5.7 | (4.0–8.2) |
| 42 d | 20 | 4.2 | (2.7–6.4) | 11 | 2.3 | (1.3–4.0) | 31 | 6.4 | (4.5–8.9) |
| 2 m | 20 | 4.2 | (2.7–6.4) | 11 | 2.3 | (1.3–4.0) | 31 | 6.4 | (4.5–8.9) |
| 3 m | 22 | 4.6 | (3.0–6.9) | 12 | 2.5 | (1.4–4.3) | 34 | 7.0 | (5.0–9.6) |
| 4 m | 22 | 4.6 | (3.0–6.9) | 14 | 2.9 | (1.7–4.8) | 36 | 7.4 | (5.4–10.1) |
| 6 m | 24 | 5.0 | (3.4–7.4) | 18 | 3.7 | (2.4–5.9) | 41 | 8.5 | (6.3–11.4) |
| 9 m | 26 | 5.5 | (3.8–8.0) | 35 | 7.4 | (5.4–10.1) | 58 | 12.2 | (9.6–15.5) |
| 12 m | 27 | 5.7 | (4.0–8.3) | 42 | 8.9 | (6.7–11.9) | 64 | 13.5 | (10.7–16.9) |
| 18 m | 31 | 6.7 | (4.8–9.4) | 47 | 10.0 | (7.6–13.1) | 72 | 15.3 | (12.3–18.9) |
| 24 m | 32 | 7.0 | (5.0–9.7) | 49 | 10.4 | (8.0–13.6) | 74 | 15.7 | (12.7–19.4) |
Kaplan-Meier estimates of the cumulative rates of HIV transmission, infant death, and combined HIV transmission or death at selected ages, from birth to 24 mo, KiBS, 2003–2009. Data are infant ages (in days or months), cumulative events (counts), and Kaplan-Meier estimates of various rates (%) with 95% CIs.