Table 4.
Sample characteristics of the Detroit cohort (N = 85).
| M or % | SD | |
|---|---|---|
| Maternal age at delivery | 25.6 | 5.8 |
| Socioeconomic status a | 28.9 | 10.2 |
| Maternal/caregiver education (years) | 12.7 | 1.9 |
| Prenatal cigarettes (cigarettes/day)c | 14.0 | 12.2 |
| Alcohol exposured | ||
| Absolute alcohol/day (oz) | 0.4 | 0.9 |
| Absolute alcohol/occasion (oz) | 2.0 | 3.3 |
| Frequency (days/week) | 1.3 | 1.4 |
| Age at testing | 19.5 | 0.4 |
| Gender (% male) | 61.2 | -- |
| IQ b | 78.4 | 14.4 |
a
Hollingshead Four Factor Index of Social Status Scale (1975).
b
14-year WISC-III Full-scale IQ.
c
Consumers only (N = 48).
d
Consumers only (N = 63).