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Descriptive statistics total sample.
| Pregnant | Nonpregnant | P | |
|---|---|---|---|
| Mean/percent (SD) | Mean/percent (SD) | ||
| Maternal age | 26.7 (5.0) | 27.8 (6.0) | 0.9 |
| Race/ethnicity | |||
| Caucasian | 97.7% | 87.5% | |
| African-American | 2.3% | 10.4% | |
| Latina | 0% | 2.1% | |
| Time in treatment (wks) | 35.1 (5.6) | 192.0 (22.7) | 0.0001 |
| Methadone dose (mgs) | 143.6 (48.6) | 128.7 (67.5) | 0.2 |
