Table 1 Sample characteristics by COC group
|
COC+ N = 35 |
COC− N = 37 | Statistic | p-value | |
|---|---|---|---|---|
| Demographics | ||||
| Age in years, M (SD) | 45.40 (6.45) | 43.03 (7.50) | t(70) = 1.44 | 0.156 |
| Male gender, n (%) | 21 (60%) | 21 (57%) | χ(1)2 = 0.08 | 0.780 |
| African-American race, n (%) | 28 (80%) | 28(76%) | χ(1)2 = 0.20 | 0.659 |
| Education in years, M (SD) | 12.54 (2.58) | 13.97 (2.03) | t(70) = 2.62 | 0.011 |
| Other substance use in past 30 days | ||||
| Daily nicotine, n (%) | 21 (60%) | 12 (32%) | χ(1)2 = 5.51 | 0.019 |
| Any alcohol, n (%) | 30 (86%) | 20 (54%) | χ(1)2 = 8.50 | 0.004 |
| Any marijuana, n (%) | 16 (46%) | 10 (27%) | χ(1)2 = 2.72 | 0.099 |
| Number of substances used, M (SD) | 2.00 (0.77) | 1.14 (1.06) | t(70) = 3.95 | < 0.001 |