Table 4 The perinatal factors associated with interstitial pneumonia patterns on day 7 chest radiographs
No interstitial pneumonia patterns on day 7 N = 269 | Interstitial pneumonia patterns on day 7 N = 35 | P | |
|---|---|---|---|
Birth weight (g), mean ± SD | 1062 ± 267 | 793 ± 220 | <0.001 |
Gestational age (weeks), mean ± SD | 28+3 ± 1+6 | 25+6 ± 1+4 | <0.001 |
Male (%) | 138 (51.3) | 17 (48.6) | 0.858 |
Caesarean section (%) | 194 (72.1) | 22 (62.9) | 0.321 |
Multiple gestation (%) | 84 (31.2) | 10 (28.6) | 0.847 |
Antenatal steroid (%) | 242 (90.0) | 29 (82.9) | 0.243 |
Premature rupture of membrane (%) | 113 (42.0) | 21 (60.0) | 0.048 |
Preeclampsia (%) | 72 (26.8) | 6 (17.1) | 0.303 |
Histologic chorioamnionitis (%) | 118 (43.9) | 27 (77.1) | <0.001 |