TABLE 1.
Sociodemographic and clinical characteristics, expressed as percents or means (SD)
| Variable | CO (n = 179) | SIMD (n = 57) | IMD (n = 103) | F/χ 2 |
|---|---|---|---|---|
| Sociodemographics | ||||
| Age | 39.6 (10.7) | 38.4 (7.1) | 38.2 (7.5) | ns |
| Education | 12.6 (2.4) | 12.4 (1.9) | 12.9 (2.3) | ns |
| Gender (%) | — | — | — | ns |
| Male | 79.9 | 73.7 | 81.6 | — |
| Female | 20.1 | 26.3 | 18.4 | — |
| Married (%) | 40.0 | 36.8 | 32.7 | ns |
| Race (%) | — a | — ab | — b | 25.03** |
| White | 21.8 | 28.1 | 48.5 | — |
| Black | 70.1 | 63.2 | 41.8 | — |
| Hispanic | 7.3 | 8.8 | 9.7 | — |
| Employed (%) | 55.5a | 39.2a | 40.7a | 7.4* |
| DSM-IV Diagnosis | ||||
| Alcohol dependence (% ) | ||||
| Current | 9.0 | 17.9 | 16.8 | ns |
| Lifetime | 26.8a | 43.2b | 52.5b | 19.39** |
| Cannabis dependence (% ) | ||||
| Current | 7.2 | 7.0 | 7.8 | ns |
| Lifetime | 17.2 | 21.0 | 23.8 | ns |
| Personality disorders (% ) | ||||
| Antisocial | 12.4a | 16.7ab | 29.4b | 12.74* |
| Borderline | 3.9a | 11.1ab | 19.6b | 18.00* |
| Dependent | 2.8a | 1.9ab | 10.8b | 9.94* |
| Substance use Characteristics | ||||
| Drug use, days in past 30 | ||||
| Cocaine | 12.7 (8.6)a | 16.3 (9.4)b | 15.2 (9.2)ab | 4.80*** |
| Alcohol | 11.1 (10.2) | 11.2 (10.1) | 8.5 (9.2) | ns |
| Cannabis | 3.5 (7.8) | 6.6 (14.1) | 4.2 (8.8) | ns |
| Lifetime drug use, years | ||||
| Cocaine | 11.5 (6.3)ab | 12.9 (6.6)a | 10.1 (6.5)b | 3.85* |
| Alcohol | 17.9 (9.9) | 16.1 (9.9) | 15.6 (9.3) | ns |
| Cannabis | 10.1 (9.1)b | 14.1 (13.7)a | 10.7 (9.2)ab | 3.59* |
| Cocaine severity composite | 0.64 (0.21)a | 0.76 (0.18)b | 0.78 (0.16)b | 19.19** |
Note. CO = Cocaine Dependence Only; SIMD = cocaine dependence with substance-induced depression; IMD = cocaine dependence with independent major depression. Groups with different letter superscripts demonstrated statistically significant differences when tested by Tukeys’ HSD procedure for pairwise comparisons or pairwise post-hoc Chi-square tests (αFW = .05).
*
p < 0.05
**
p < 0.01
***
p < 0.0001.