TABLE 1.
Characteristics of pregnancies in the subcohort and pregnancies with a stillbirth, Magee-Womens Hospital, Pittsburgh, Pennsylvania (2003–2010)
| Subcohort, n (%) | Stillbirths, n (%) | |
| Prepregnancy BMI, kg/m2 | ||
| <25 | 1043 (57) | 292 (44) |
| 25–29.9 | 457 (25) | 173 (27) |
| 30–34.9 | 183 (10) | 100 (14) |
| ≥35 | 146 (8) | 93 (15) |
| Maternal race-ethnicity | ||
| Non-Hispanic white | 1427 (78) | 428 (65) |
| Non-Hispanic black | 329 (18) | 191 (29) |
| Other | 73 (4) | 39 (6) |
| Parity at conception of index pregnancy | ||
| 0 | 805 (44) | 276 (42) |
| ≥1 | 1024 (56) | 382 (58) |
| Maternal age, y | ||
| <20 | 128 (7) | 66 (10) |
| 20–29 | 805 (44) | 283 (43) |
| ≥30 | 896 (49) | 309 (47) |
| Marital status | ||
| Unmarried | 622 (34) | 329 (50) |
| Married | 1207 (66) | 329 (50) |
| Maternal education, y | ||
| Less than high school | 146 (8) | 145 (22) |
| High school or equivalent | 421 (23) | 145 (22) |
| Some college | 402 (22) | 171 (26) |
| College graduate | 860 (47) | 197 (30) |
| Pre-existing diabetes or hypertension | ||
| No | 1756 (96) | 605 (92) |
| Yes | 73 (4) | 53 (8) |
| Pre-existing mood disorder | ||
| No | 1591 (87) | 546 (83) |
| Yes | 238 (13) | 112 (17) |
| Trimester of entry to prenatal care | ||
| First | 1427 (78) | 467 (72) |
| Second | 293 (16) | 165 (25) |
| Third | 110 (6) | 20 (3) |
| Ever smoked during pregnancy | ||
| No | 1591 (87) | 513 (78) |
| Yes | 238 (13) | 145 (22) |