Table 1.
Comparison of dyads included and not included in the study.
| n(%) or Mean (SD) | Included N=561 | Not Included n=250 |
|---|---|---|
| CHARACTERISTICS OF THE BIOLOGICAL MOTHER | ||
| Race | ||
| Black | 442 (79%)*** | 160 (64%) |
| White | 71 (13%) | 65 (26%) |
| Hispanic/Other | 48 (8%) | 25 (10%) |
| Maternal age, yr | 28.35 (5.88) | 27.63 (5.75) |
| Single | 461 (82%)** | 183 (73%) |
| < High school | 218 (39%) | 92 (37%) |
| Low SES at 1 month | 129 (24%)* | 40 (17%) |
| Medicaid recipient | 462 (82%) | 198 (79%) |
| Prenatal cocaine use | 238 (42%) | 103 (41%) |
| Heavy cocaine use (≥ 3 days/wk) | 60 (11%) | 32 (14%) |
| Prenatal opiate use | 44 (8%) | 28 (11%) |
| Prenatal alcohol use | 359 (64%)* | 141 (56%) |
| Heavy (≥0.5 oz absolute alcohol/day) | 75 (14%) | 21 (9%) |
| Prenatal tobacco use | 296 (53%) | 138 (55%) |
| Heavy (≥10 cigarettes/day) | 126 (24%) | 57 (25%) |
| Prenatal marijuana use | 124 (22%) | 60 (24%) |
| Heavy (≥0.3 joints/day) | 20 (4%) | 11 (5%) |
| CHILD CHARACTERISTICS | ||
| Mean gestational age | 38.95 (1.34) | 38.98 (1.42) |
| Small for gestational age (SGA) | 149 (27%) | 59 (24%) |
| Birth weight (g) | 3112 (531) | 3125 (494) |
| Birth length (cm) | 49.42 (2.80) | 49.40 (2.74) |
| Birth head circumference (cm) | 33.71 (1.56) | 33.83 (1.53) |
| Female sex | 253 (45%) | 109 (44%) |
***
p<.001,
**
p<.01,
*
p<.05