Table II.
Infant Characteristics (mean ± SD)
| ELGA Preterm 23-28 wks GA n = 64 |
VLGA Preterm 29-32 wks GA n = 81 |
Term Born 37-41 wks GA n = 80 |
|
|---|---|---|---|
| Boys (n, % male) | 38 (59%) | 38 (47%) | 40 (50%) |
| Gestational age at birth (weeks) | 26.5 ± 1.5 | 31.1 ± 1.3 | 40.0 ± 1.1 |
| Birth weight (grams) | 870 ± 224 | 1566 ± 433 | 3559 ± 524 |
| Apgar 1 min | 5.2 ± 2.5 | 6.9 ± 1.9 | 8.2 ± 1.1 |
| Apgar 5 min | 7.7 ± 1.8 | 8.5 ± 1.0 | 9.1 ± 0.3 |
| Illness severity day 1 (SNAP-II) | 21 ± 12 | 8 ± 10 | n/a |
| Illness severity day 3 (SNAP-II) | 8 ± 8 | 1 ± 4 | n/a |
| Mechanical ventilation (days) | 31 ± 27 | 3 ± 8 | n/a |
| Other respiratory support (days) | 47 ± 20 | 10 ± 12 | n/a |
| Skin breaking procedures (number from birth to term) |
204 ± 102 | 61 ± 37 | n/a |
| Intravenous morphine (average iv morphine dose [mg/kg] per day from birth to term, adjusted for daily weight [g] X number of days on IV morphine) |
6 ± 10 | 1 ± 5 | n/a |