Table 4 Changes in illness severity and outcomes over time in infants <1000 g
From: Increasing illness severity in very low birth weight infants over a 9-year period
Infants <1000 g | Cohort 1 1993–1996, n = 165 | Cohort 2 1996–1999, n = 199 | Cohort 3 1999–2002, n = 246 |
|---|---|---|---|
T4 (μg/dl) | 5.4 ± 2.9 | 5.3 ± 3.1 | 4.7 ± 3.3 * |
SNAP | NA | 15.3 ± 7.4 | 18.3 ± 8.9 † |
Death | 30% | 27% | 33% |
Severe IVH | 16% | 14% | 23% † |
Death/Severe IVH | 35% | 36% | 46% * † |