Table 1.
Baseline Characteristics by Degree of Critical Illness
| Appropriate-for-Gestational Age (AGA) | Small-for Gestational Age (SGA) | |||||
|---|---|---|---|---|---|---|
| Characteristic | Less Critically Ill (MV < 7d) (n=499) |
More Critically Ill (MV days 1–7) (n=646) |
p-value* | Less Critically Ill (MV < 7d) (n=145) |
More Critically Ill (MV days 1–7) (n=76) |
p-value* |
| Birth Weight (g (SD**)) | 842 (109) | 734 (129) | < 0.0001 | 780 (143) | 623 (135) | < 0.0001 |
| n (%) ≤ 750 g | 99 (20) | 374 (58) | 66 (45.5) | 63 (82.9) | ||
| n (%)751–1000 g | 400 (80) | 272 (42) | 79 (54.5) | 13 (17.1) | ||
| Gestational Age (wk (SD)) | 26.3 (1.4) | 25.0 (1.4) | < 0.0001 | 29.2 (2) | 27.2 (2) | < 0.0001 |
| Male, n (%) | 205 (41) | 334 (52) | 0.0004 | 71 (49.0) | 36 (47.4) | 0.82 |
| Race (%) | 0.0035 | 0.0138 | ||||
| White | 204 (40.9) | 225 (34.8) | 67 (46.2) | 20 (26.3) | ||
| Black | 234 (46.8) | 291 (45.1) | 59 (40.7) | 44 (57.9) | ||
| Hispanic | 55 (11.0) | 115 (17.8) | 16 (11.0) | 12 (15.8) | ||
| Antenatal Steroids (n (%)) | 430 (86) | 494 (76) | < 0.0001 | 114 (78.6) | 57 (75.0) | 0.54 |
| Intrapartum antibiotics (n (%)) | 367 (74) | 460 (71) | 0.43 | 67 (46.2) | 31 (40.8) | 0.44 |
*
p-value from Wilcoxon test for continuous variables; Chi-Square for categorical variables.
**
SD, standard deviation