Table 1.
Demographics of the cohort.
| Demographics | Non-traumatic N (%) | Traumatic N (%) | Total N (%) |
|---|---|---|---|
| Total | 3,855 (60.5) | 2,519 (39.5) | 6,374 (100) |
| Gestational age (weeks) | |||
| <30 | 652 (16.9) | 415 (16.4) | 1,067 (16.7) |
| 30–36 | 951 (24.7) | 623 (24.7) | 1,574 (24.7) |
| >36 | 2,252 (58.4) | 1,481 (58.8) | 3,733 (58.6) |
| Gender | |||
| Female | 1,677 (43.5) | 1,059 (42.0) | 2,736 (42.9) |
| Male | 2,178 (56.5) | 1,460 (58.0) | 3,638 (57.1) |
| Race/Ethnicity | |||
| White | 1,842 (47.8) | 1,214 (48.2) | 3,056 (47.9) |
| Black | 611 (15.9) | 394 (15.6) | 1,005 (15.8) |
| Hispanic | 1,139 (29.6) | 719 (28.5) | 1,858 (29.2) |
| Other | 263 (6.8) | 192 (7.6) | 455 (7.1) |
| Birth weight (g) | |||
| <750 | 128 (3.3) | 106 (4.2) | 234 (3.7) |
| 750–999 | 248 (6.4) | 144 (5.7) | 392 (6.2) |
| 1000–1499 | 476 (12.4) | 258 (10.2) | 734 (11.5) |
| 1500–2499 | 778 (20.2) | 490 (19.5) | 1,268 (19.9) |
| >2499 | 2,185 (56.7) | 1,506 (59.8) | 3,691 (57.9) |
| Day of life at time of LP | |||
| 0–3 | 2,193 (56.9) | 1,709 (67.8) | 3,902 (61.2) |
| 4–7 | 403 (10.5) | 241 (9.6) | 644 (10.1) |
| 8–14 | 559 (14.5) | 257 (10.2) | 816 (12.8) |
| 15–30 | 700 (18.2) | 312 (12.4) | 1,012 (15.9) |