Clinical characteristics of infants admitted to NICUs with gestational age below 28 weeks or birth weight below 1000g in 1994–95
| Trent | Denmark | p Value | |
|---|---|---|---|
| Birthweight, g mean (SD) | 830.5 (182.7) | 869.4 (192.7) | 0.0019* |
| Gestational age, weeks mean (SD) | 26.4 (2.1) | 26.6 (2.0) | 0.2386* |
| CRIB score (median, IQ range) | 7 (4 to 11) | 4 (1 to 7) | <0.0001† |
| Length of stay, days (surviving infants) (median, IQ range) | 81 (60 to 105) | 78 (67 to 92) | 0.5624† |
| Total | 489 | 420 |
| n (%) | n (%) | p Value for χ2 test | |
|---|---|---|---|
| *t test; †Wilcoxon test. | |||
| CRIB, Clinical Risk Index for Babies; CPAP, continuous positive airway pressure. | |||
| Male | 273 (55.8) | 221 (52.6) | 0.3331 |
| Multiple | 132 (26.4) | 145 (34.5) | 0.0077 |
| Antenatal Steroids | 334 (68.3) | 234 (55.7) | 0.0020 |
| Caesarean section | 229 (46.8) | 242 (57.6) | 0.0012 |
| Transport | 220 (45.0) | 171 (40.7) | 0.1943 |
| Surfactant | 303 (62.0) | 172 (41.0) | <0.0001 |
| Ventilator treatment | 430 (87.9) | 168 (40.0) | <0.0001 |
| CPAP treatment | 112 (22.9) | 348 (82.8) | <0.0001 |
| Oxygen at day 28 (of infants alive on day 28) | 208 (67.8) | 148 (51.9) | <0.0001 |
| Neonatal mortality (<28 days) | 182 (37.2) | 135 (32.1) | 0.1094 |
| Total mortality | 207 (42.3) | 147 (35.0) | 0.0238 |