Table 11.

Survival to 7 and 28 Days for All Admissions and Probability of Survival to Discharge for Survivors at Both Ages

Gestation (Weeks)n Admissions 7 Days After Birth (Fig 1, Point A)28 Days After Birth (Fig 1, Point B)
% Alive at 7 Days (n)% [95% CI] of 7-Day Survivors Discharged From Hospital (n)% Alive at 28 Days (n)% [95% CI] of 28-Day Survivors Discharged From Hospital (n)
≤2315638.1 (59)47.5 [34.8–60.2] (28)26.5 (41)68.3 [54.1–82.5] (28)
2429856.0 (167)59.9 [52.5–67.3] (100)43.3 (129)77.5 [70.3–84.7] (100)
2535770.5 (249)74.7 [69.3–80.1] (186)59.2 (209)88.9 [84.6–93.2] (184)
Total ≤2581158.9 (475)66.1 [61.8–70.2] (314)47.0 (379)82.7 [78.9–86.5] (312)