Table 1. Population characteristics.
| Alln = 342 | SGA 1 54 (15.8%) | AGA 2 288 (84.2%) | p value*AGA versus SGA | |
|---|---|---|---|---|
| Antenatal characteristics | ||||
| Antenatal steroids (n, %) | 218/333 (65) | 37/54 (68) | 181/279 (65) | 0.606 |
| Outborn (n, %) | 61 (17.9) | 8 (14.8) | 53 (18.5) | 0.521 |
| Male gender (n, %) | 175 (50.8) | 28 (51.8) | 146 (50.7) | 0.876 |
| Multiple gestation (n, %) | 78 (22.3) | 10 (18.5) | 68 (23.6) | 0.413 |
| Gestational age (weeks) (mean, SD, range) | 28.4(6.8,24–31.8) | 28.5(6.8,24–31.8) | 28.6(2,24–31.8) | 0.640 |
| Neonatal characteristics | ||||
| Birthweight (g)(mean, SD, range) | 1158(348,380–2280) | 784(191,380–1415) | 1228(325,650–2280) | < 0.001 |
| Asphyxia (Apgar < 6 at 5 min.) (n, %) | 94 (28.1) | 19 (35.2) | 75 (26.8) | 0.209 |
| Asphyxie (pH<7.0) (n, %) | 17 (5.5) | 1 (1.9) | 16 (6.3) | 0.209 |
| Proven sepsis (n, %) | 48 (14.0) | 8 (14.8) | 40 (13.9) | 0.857 |
| Major brain lesions (n, %) | 42 (15.8) | 9 (22.0) | 33 (14.6) | 0.252 |
| Proven enterocolitis (n, %) | 14 (4.0) | 8 (14.8) | 6 (2.0) | < 0.001 |
| Bronchopulmonary dysplasia (n, %) | 102 (30.0) | 26 (49.0) | 76 (26.6) | 0.001 |
| Maternal characteristics | ||||
| Largo score (mean, SD, range) | 6.6(2.5, 2–12) | 5.9(5.8, 2–12) | 6.8(6.8, 2–12) | 0.014 |
| Smoking during pregnancy (n, %) | 67 (21.7) | 16 (31.4) | 51 (19.8) | 0.066 |
*p values were calculated by t-tests for continuous variables and by the chi2 test for categorical or binary outcomes.
1: SGA: small for gestational age, birthweight< percentile 10.
2: AGA: appropriate for gestational age, birthweight> percentile 10