Table 1.
Infant characteristics
| Characteristic | ASD, n (%) | |
|---|---|---|
| No (n= 19,182) |
Yes (n= 1314) |
|
| Gestational age (weeks) | ||
| <26 | 6076 (32) | 353 (27) |
| 26–28 | 9945 (52) | 730 (56) |
| 29–30 | 3161(16) | 231(18) |
| Birth weight (g) | ||
| 501–750 | 5979 (31) | 386 (29) |
| 751–1000 | 7329 (38) | 502 (38) |
| 1001–1250 | 5874(31) | 426 (32) |
| Small for gestational age | 2889(15) | 220(17) |
| Race | ||
| White | 9594 (50) | 658(50) |
| Black | 5809 (30) | 364 (28) |
| Hispanic | 3779 (20) | 292 (22) |
| Male | 9957 (52) | 606 (46) |
| 5-minute Apgar | ||
| 0–3 | 971 (5) | 60(5) |
| 4–6 | 4138 (22) | 284 (22) |
| 7–10 | 13,766 (73) | 954 (73) |
| Cesarean section | 14,324 (75) | 1039 (79) |
| Necrotizing enterocolitis | 1623 (8) | 94(7) |
| BPD diagnosis | 8261 (43) | 631(48) |
| Postnatal surfactant exposure | 15,778 (82) | 1064(81) |
ASD, atrial septal defect; BPD, bronchopulmonary dysplasia