TABLE 1.
Baseline characteristics of all neonatesa
| Demographic | Mean ± SD (range) | Total no. of neonates (%) |
|---|---|---|
| Gestational age (wk) | ||
| <24 | 23.0 ± 0 | 2 (1.7) |
| 24-28 | 26.4 ± 1.3 | 66 (56.9) |
| 29-31 | 29.7 ± 0.85 | 48 (41.4) |
| Postmenstrual age (wk) | ||
| <24 | 23.6 ± 0.4 | 2 (1.7) |
| 24-28 | 26.3 ± 1.1 | 39 (33.6) |
| >28-32 | 29.8 ± 1.1 | 70 (60.3) |
| >32-34 | 32.7 ± 0.7 | 5 (4.3) |
| Postnatal age (days) | ||
| 1-7 | 4.3 ± 1.6 | 86 (74.1) |
| 8-14 | 10.3 ± 1.8 | 21 (18.1) |
| 15-21 | 16.5 ± 1.8 | 6 (5.2) |
| 22-28 | 25.0 ± 2.8 | 2 (1.7) |
| 29-32 | 32 | 1 (0.9) |
| Birth wt (kg) | ||
| <0.5 | 0.42 | 1 (0.9) |
| 0.5-0.75 | 0.67 ± 0.06 | 19 (16.4) |
| >0.75-1.0 | 0.87 ± 0.07 | 51 (44.0) |
| >1.0-1.5 | 1.19 ± 0.13 | 42 (36.2) |
| >1.5-2 | 1.81 ± 0.17 | 3 (2.6) |
| Study wt (kg) | ||
| 0.5-0.75 | 0.67 ± 0.09 | 25 (21.6) |
| >0.75-1.0 | 0.91 ± 0.1 | 55 (47.4) |
| >1.0-1.5 | 1.20 ± 0.13 | 33 (28.4) |
| >1.5-2 | 1.77 ± 0.23 | 3 (2.6) |
| Serum creatinine concn (mmol/liter) | 0.076 ± 0.02 (0.031-0.143) | |
| Apgar score at 1 min | 5.0 ± 2.0 (1-9) | |
| Apgar score at 5 min | 7.4 ± 1.9 (2-10) |
a
n = 116 (66 males; 40% small-for-gestational-age neonates).