Table 1.
Demographics
| Cocaine Dependent Cases
(N= 459) |
Community-Based Comparisons
(N=459) |
Case Siblings
(N=459) |
Community Siblings
(N=459) |
|
|---|---|---|---|---|
| Sex, % | ||||
| Male | 47.1 | 47.1 | 35.3 | 33.1 |
| Female | 52.9 | 52.9 | 64.7 | 66.9 |
| Race, % | ||||
| Black | 50.3 | 50.3 | 50.3 | 50.3 |
| White | 49.7 | 49.7 | 49.7 | 49.7 |
| Age, mean (SD), y | 35.9 (8.7) | 36.9 (8.9) | 36.2 (9.0) | 36.7 (9.3) |
| Birth cohort, % | ||||
| Before 1961 | 30.7 | 30.1 | 30.1 | 28.3 |
| 1961–1968 | 34.9 | 34.9 | 34.2 | 35.1 |
| After 1968 | 34.4 | 35.1 | 35.7 | 36.6 |
| Marital status, % * + | ||||
| Married/Widowed | 13.5 | 39.7 | 32.7 | 38.8 |
| Separated/Divorced | 34.0 | 20.0 | 23.7 | 17.4 |
| Never married | 52.5 | 40.3 | 43.6 | 43.8 |
| Education, % * + | ||||
| < High School | 26.6 | 8.1 | 21.1 | 8.9 |
| GED/High School | 54.7 | 47.5 | 50.8 | 48.2 |
| Some College | 14.2 | 16.3 | 16.9 | 18.0 |
| College or Higher | 4.5 | 28.1 | 11.2 | 24.9 |
| # years completed, mean (SD) * + | 11.7 (2.0) | 13.6 (2.2) | 12.5 (2.2) | 13.6 (4.6) |
| Employment, % * + | ||||
| Full-time | 25.8 | 59.3 | 55.2 | 57.3 |
| Part-time | 11.6 | 13.1 | 12.1 | 15.9 |
| Disabled | 10.7 | 6.5 | 7.3 | 5.9 |
| Unemployed | 44.3 | 11.3 | 17.6 | 10.0 |
| Other** | 7.6 | 9.8 | 7.9 | 10.9 |
| Income, % * + | ||||
| < $10,000 | 40.5 | 12.2 | 19.6 | 12.0 |
| $10,000–$29,999 | 25.9 | 20.0 | 27.2 | 24.0 |
| $30,00–$49,999 | 11.5 | 24.0 | 17.6 | 19.8 |
| ≥ $50,000 | 13.3 | 40.7 | 31.2 | 38.8 |
| Unknown or refused | 8.7 | 3.1 | 4.4 | 5.4 |
*
Significant difference between cases and community comparisons, p < .05
+
Significant difference between case and community siblings, p < .05
**
Includes homemaker, student, and retired