TABLE 1.
Demographic Characteristics of Cocaine-Exposed and Non-Cocaine-Exposed Children
| Cocaine (n = 169) |
Noncocaine (n = 153) |
|||||
|---|---|---|---|---|---|---|
| n | % | n | % | χ2/t | p | |
| Gender (male) | 77 | 46 | 69 | 45 | .01 | .93 |
| Race (non-White) | 139 | 82 | 122 | 80 | .33 | .57 |
| Premature | 49 | 29 | 30 | 20 | 3.8 | .05 |
| Use during pregnancy | ||||||
| Alcohol | 140 | 86 | 95 | 65 | 18.2 | .0001 |
| Cigarettes | 141 | 87 | 57 | 39 | 75.4 | .0001 |
| Marijuana | 79 | 49 | 18 | 12 | 46.7 | .0001 |
| M | SD | M | SD | |||
| Age | 6.1 | 0.2 | 6.1 | 0.3 | 1.4 | 1.7 |
| WPPSI-R full-scale IQ | 90.3 | 11.8 | 93.6 | 13.1 | 2.4 | .02 |
| Gestational age (weeks) | 37.7 | 2.9 | 38.5 | 2.9 | 2.6 | .01 |
| Birth weight (grams) | 2710 | 678.1 | 3086 | 703.9 | 5.4 | .0001 |
| Birth length (cm) | 47.2 | 3.9 | 49.0 | 4.1 | 4.5 | .0001 |
| Head circumference (cm) | 32.2 | 2.3 | 33.4 | 2.5 | 4.8 | .0001 |
NOTE: WPPSI-R = Wechsler Primary Preschool Scale of Intelligence–Revised.