Table 1.
Descriptive Information of the Sample by Prenatal Exposure Status
| Nonexposed (n = 57) | Cocaine Exposed (n = 56) | |||||
|---|---|---|---|---|---|---|
|
| ||||||
| M | SD | M | SD | t | p | |
| Maternal Age (in years) | 28.61 | 5.37 | 30.91 | 6.11 | −2.12 | .036 |
| Maternal Years of Education | 12.35 | 1.73 | 11.41 | 1.72 | 2.90 | .005 |
| Parity (# of live births) | 3.33 | 1.70 | 4.30 | 2.37 | −2.50 | .014 |
| Prenatal Number of Cigarettes Per Week | 5.97 | 14.84 | 41.49 | 45.64 | −5.50 | <.001 |
| Prenatal Number of Drinks Per Week | .07 | .14 | 4.02 | 9.73 | −3.01 | .004 |
| Prenatal Number of Joints Per Week | 1.48 | 7.32 | 1.41 | 3.16 | .067 | .95 |
| Postnatal Average Number of Cigarettes Per Day | 1.74 | 4.08 | 7.11 | 7.78 | −4.58 | <.001 |
| Postnatal Average Number of Drinks Per Day | 2.63 | 3.47 | 3.98 | 6.89 | −1.31 | .19 |
| Postnatal Average Number of Joints Per Day | .60 | 1.60 | 1.27 | 2.90 | −1.52 | .13 |
| Postnatal Number of Days Used Cocaine | 0.00 | .00 | 6.78 | 22.74 | −2.23 | .03 |
| Gestational Age (in weeks) | 39.37 | 1.22 | 38.54 | 2.05 | 2.62 | .01 |
| Birth Weight (grams) | 3347.42 | 503.20 | 2979.27 | 551.15 | 3.69 | <.001 |
| Head Circumference (centimeters) | 33.65 | 1.30 | 32.96 | 1.55 | 2.57 | .01 |