Table 1.
ELGAN maternal and newborn demographics (N=889).
| Overall (N=889) |
Male (N=455) |
Female (N=434) |
p-value | |
|---|---|---|---|---|
| Maternal characteristics | ||||
| Age, years | ||||
| < 21 | 115 (13%) | 50 (11%) | 65 (15%) | 0.194 |
| 21 – 35 | 594 (67%) | 313 (69%) | 281 (65%) | |
| > 35 | 180 (20%) | 92 (20%) | 88 (20%) | |
| Education, years | ||||
| <= 12 | 367 (41%) | 184 (40%) | 183 (42%) | 0.313 |
| 13 – 15 | 210 (24%) | 101 (22%) | 109 (25%) | |
| >= 16 | 312 (35%) | 170 (37%) | 142 (33%) | |
| Public insurance | ||||
| Yes | 307 (35%) | 146 (32%) | 161 (38%) | 0.083 |
| No | 568 (65%) | 305 (68%) | 263 (62%) | |
| BMI | ||||
| Underweight | 68 (8%) | 34 (8%) | 34 (8%) | 0.896 |
| Normal | 429 (50%) | 228 (51%) | 201 (49%) | |
| Overweight | 166 (19%) | 83 (19%) | 83 (20%) | |
| Obese | 194 (23%) | 101 (23%) | 93 (23%) | |
| IQ Z-score | ||||
| <= −2 | 33 (4%) | 20 (5%) | 13 (3%) | 0.625 |
| > −2, <= −1 | 62 (7%) | 32 (8%) | 30 (7%) | |
| > −1, <= 1 | 607 (72%) | 300 (71%) | 307 (74%) | |
| > 1 | 139 (17%) | 72 (17%) | 67 (16%) | |
| Single marital status | ||||
| Yes | 353 (40%) | 176 (39%) | 177 (41%) | 0.522 |
| No | 536 (60%) | 279 (61%) | 257 (59%) | |
| Racial identity | ||||
| White | 562 (63%) | 294 (65%) | 268 (62%) | 0.497 |
| Black | 227 (26%) | 115 (25%) | 112 (26%) | |
| Other | 98 (11%) | 45 (10%) | 53 (12%) | |
| Hispanic | ||||
| Yes | 86 (10%) | 37 (8%) | 49 (11%) | 0.104 |
| No | 800 (90%) | 418 (92%) | 382 (89%) | |
| Newborn characteristics | ||||
| Gestational age, weeks | ||||
| 23 | 47 (5%) | 24 (5%) | 23 (5%) | 0.189 |
| 24 | 140 (16%) | 82 (18%) | 58 (13%) | |
| 25 | 179 (20%) | 98 (22%) | 81 (19%) | |
| 26 | 221 (25%) | 105 (23%) | 116 (27%) | |
| 27 | 302 (34%) | 146 (32%) | 156 (36%) | |
| Birth weight, grams | ||||
| <= 750 | 332 (37%) | 154 (34%) | 178 (41%) | 0.027 |
| 751 – 1000 | 382 (43%) | 198 (44%) | 184 (42%) | |
| > 1000 | 175 (20%) | 103 (23%) | 72 (17%) | |
| Birth weight Z-score | ||||
| < −2 | 53 (6%) | 17 (4%) | 36 (8%) | <0.001 |
| >= −2, < −1 | 120 (13%) | 41 (9%) | 79 (18%) | |
| >= −1 | 716 (81%) | 397 (87%) | 319 (74%) | |
| Cesarean delivery | ||||
| Yes | 590 (66%) | 290 (64%) | 300 (69%) | 0.089 |
| No | 299 (34%) | 165 (36%) | 134 (31%) |