Table 1.
Maternal Characteristics by Opioid Maintenance Treatment Type, Magee-Womens Hospital, 2013–2015 (n=716).
| Characteristic | Methadone N (%) n=407 |
Buprenorphine N (%) n=309 |
|---|---|---|
| Race | ||
| White | 381 (93.6) | 294 (95.1) |
| Black | 19 (4.7) | 8 (2.6) |
| Missing | 7 (1.5) | 7 (2.3) |
| Mother’s Education | ||
| Less than high school | 83 (20.4) | 45 (14.6) |
| High school graduate or GED completed | 165 (40.5) | 139 (45.0) |
| Some college credit | 78 (19.2) | 68 (22.0) |
| College graduate | 66 (16.2) | 54 (17.4) |
| Missing | 15 (3.7) | 3 (1.0) |
| BMI categorya | ||
| Underweight (<18.5kg/m2) | 11 (2.7) | 17 (5.5) |
| Normal weight | 116 (28.5) | 94 (30.4) |
| Overweight | 35 (8.6) | 30 (9.7) |
| Obese | 29 (7.1) | 24 (7.7) |
| Missing | 216 (53.1) | 144 (46.6) |
| Married | 35 (8.6) | 58 (18.8) |
| Employed | 139 (34.2) | 135 (43.7) |
| Smoked during pregnancy | 336 (82.6) | 250 (80.9) |
| Parity | ||
| Nulliparous | 118 (29.0) | 106 (34.3) |
| 1–2 previous pregnancies | 208 (51.1) | 151 (48.9) |
| Greater than 2 pregnancies | 81 (19.9) | 52 (16.8) |
| Infant with congenital anomaly | 50 (12.3) | 27 (8.7) |
| Hepatitis c positive | 61 (15.0) | 31 (10.0) |
| Mother’s age [Mean (SD)] | 29.1 (4.7) | 28.5 (4.9) |
| Prepregnancy BMI [Mean (SD)]b | 24.6 (5.3) | 24.2 (6.1) |
| Gestational age at delivery [Mean (SD)] | 37.4 (2.9) | 38.5 (2.5) |
| Birthweight [Mean (SD)] | 2734 (619.3) | 2999 (591.2) |
a
Prepregnancy BMI defined as underweight (<18.5 kg/m2), normal weight (18.5 to <25 kg/m2), overweight (25 to <30 kg/m2), obese (≥30 kg/m2).
b
Prepregnancy BMI based on n=356.
GED=general education development, SD=standard deviation, BMI=body mass index