Table 1.
Demographics and Clinical Characteristics of the Study Population (N=778) Characteristic No. (%)
| Age (years) | |
| <25 | 115 (15) |
| 25–34 | 439 (56) |
| 35+ | 224 (29) |
| Mother’s Education (years) | |
| <12 | 38 (5) |
| 12–15 | 296 (38) |
| 16+ | 444 (57) |
| No. Previous live births | |
| 0 | 338 (43) |
| 1 | 279 (36) |
| 2+ | 161(21) |
| Married/cohabiting | 686 (88) |
| Race/Ethnicity | |
| White | 578 (74) |
| Black | 59 (7) |
| Hispanic/Other | 141 (18) |
| Pre-pregnancy BMI (kg/m2) | |
| <19 | 26 (3) |
| 19–24 | 345 (44) |
| 25–29 | 227 (29) |
| 30+ | 166 (21) |
| Unknown height or weight | 14 (2) |
| Diabetes | 13 (2) |
| Hypertension | 32 (4) |
| Major depressive episode 6 months before pregnancy | 182 (23) |
| Age of first depressive episode (years) | |
| <14 | 99 (13) |
| 14–17 | 158 (20) |
| 18–25 | 290 (37) |
| 26+ | 226 (29) |
| Unknown | 5 (1) |
| Number of lifetime depressive episodes prior to pregnancy | |
| 1 | 206 (26) |
| 2 | 159 (20) |
| 3 | 115 (15) |
| 4+ | 298 (38) |
| Number of times hospitalized for depression prior to pregnancy | |
| Never | 684 (88) |
| 1 time | 55 (7) |
| 2–3 times | 28 (4) |
| 4+ times | 11 (1) |
*
Percents reflect missing data after trimester 1