Table 1. Subject Characteristics.
Maternal demographic data, pregnancy characteristics, and data on birth outcomes are presented for the ELGAN subjects used in this analysis. Data are presented as the number (%) of subjects and mean [range] in the cohort.
| Overall (n = 390) | miRNA subset (n = 376) | mRNA subset (n = 378) | |
|---|---|---|---|
| Maternal age (years) | 29 [14–45] | 29 [14–45] | 29 [14–45] |
| Maternal race | |||
| White | 237 (61.4) | 228 (61.3) | 229 (61.2) |
| Non-white | 149 (38.6) | 144 (38.7) | 145 (38.8) |
| Maternal BMI (kg/m 2 ) | |||
| Underweight (< 18.5) | 27 (7.2) | 26 (7.0) | 26 (7.0) |
| Normal (18.5 – < 25.0) | 199 (52.8) | 197 (53.1) | 199 (53.4) |
| Overweight or obese (≥ 25.0) | 151 (40.1) | 148 (39.9) | 148 (39.7) |
| Smoke exposure * | |||
| No | 292 (76.4) | 287 (76.3) | 289 (76.5) |
| Yes | 90 (23.6) | 89 (23.7) | 89 (23.5) |
| Multiple-gestation pregnancy | |||
| No | 287 (73.6) | 274 (72.9) | 276 (73.0) |
| Yes | 103 (26.4) | 102 (27.1) | 102 (27.0) |
| Highest level of educational attainment | |||
| Less than 12 years | 49 (12.9) | 47 (12.6) | 47 (12.5) |
| Between 12 and 16 years | 185 (48.8) | 182 (48.8) | 184 (49.1) |
| Greater than 16 years | 145 (38.3) | 144 (38.6) | 144 (38.4) |
| Newborn sex | |||
| Male | 205 (52.6) | 197 (52.4) | 198 (52.4) |
| Female | 185 (47.4) | 179 (47.6) | 180 (47.6) |
| Newborn birth weight (grams) | 831.4 [420–1418] | 835.2 [420–1418] | 834.2 [420–1418] |
| Gestational age (weeks) | 26 [23–27] | 26 [23–27] | 26 [23–27] |
*
first- or second-hand smoke exposure