Characteristics | Infants with BPD | Infants without BPD | p value |
---|---|---|---|
Neonate characteristics | |||
 Sample size | 14a | 93 |  |
 Birth weight (g) | 925.9 ± 75.6 | 1187.9 ± 25.2 | 0.003 |
 Gestation age (weeks) | 27.6 ± 0.7 | 30.3 ± 0.2 | 0.0000157 |
 Sex | Male 9 | Male 31 | 0.0372 |
Female 5 | Female 62 | ||
 Cumulative NICU O2 (Days) | 47.1 ± 5.2 | 7.8 ± 1.1 | < 0.001 |
 Delivery room surfactant | 1/12 (8%) | 4/86 (5%) | 0.302 |
Maternal characteristics | |||
 Maternal race |  |  | 0.0693 |
 European-Latin | 11 | 68 |  |
 Criollos | 0 | 14 |  |
 European-other | 0 | 5 |  |
 Jewish | 1 | 3 |  |
 Arab-Middle Eastern | 1 | 0 |  |
 African Caribbean | 0 | 1 |  |
 Native American | 1 | 0 |  |
 Asian | 0 | 1 |  |
 Unknown or refused | 0 | 1 |  |
Maternal age (year) | 32.2 ± 1.9 | 34.1 ± 0.5 | 0.211 |
Maternal smoking historyb | 7/14 (50%) | 25/93 (27%) | 0.0795 |
Maternal antenatal steroid | 13/13 (100%) | 82/90 (91%) | 0.333 |
Maternal preeclampsia | 3/14 (21%) | 25/93 (27%) | 1 |
IUGR-reason for delivery | 5/12 (42%) | 33/90 (37%) | 0.321 |
BMI | 33.6 ± 1.8 | 34.1 ± 5.2 | 0.604 |
Educationc | 9/4/0/1 | 63/20/5/5 | 0.849 |
Employed first trimester | 10/13 (77%) | 69/88 (78%) | 0.886 |
Alcohol during pregnancy | 0 | 1/88 (1%) | 0.331 |
Chorioamnionitis | 2/12 (17%) | 6/85 (7%) | 0.238 |
Asthma | 0 | 0 | 1 |
Other respiratory disease | 0 | 0 | 1 |
Fetal complications | |||
 Fetal IUGR | 5/12 (42%) | 38/88 (43%) | 0.460 |
 Fetal oligohydramnios | 3/12 (25%) | 11/88 (13%) | 0.155 |