Table 1.
Demographics and clinical characteristics for the entire treatment cohort and compared across self-reported cigarette smokers and non-cigarette smokers.
| Total sample (N=302) | Non-cigarette smokers (n=185) | Cigarette smokers (n=117) | P-value | |
|---|---|---|---|---|
| Demographics | ||||
| Age – Mean (SD) | 30.3 (9.0) | 29.7 (8.9) | 31.3 (9.2) | 0.140 |
| Male - % (N) | 71.5 (216) | 71.4 (132) | 71.8 (84) | 0.934 |
| Race | ||||
| White - % (N) | 58.3 (176) | 58.9 (109) | 57.3 (67) | 0.034 |
| African American/Black - % (N) | 27.8 (84) | 23.8 (44) | 34.2 (40) | |
| Other - % (N) | 13.9 (42) | 17.3 (32) | 8.5 (10) | |
| Education | ||||
| < HS - % (N) | 9.3 (28) | 3.2 (6) | 18.8 (22) | <0.001 |
| HS/GED - % (N) | 29.5 (89) | 25.4 (47) | 35.9 (42) | |
| Some College- % (N) | 35.4 (107) | 41.1 (76) | 26.5 (31) | |
| College Graduate - % (N) | 25.8 (78) | 30.3 (56) | 18.8 (22) | |
| Employment | ||||
| Employed - % (N) | 51.3 (155) | 55.7 (103) | 44.4 (52) | 0.002 |
| Unemployed - % (N) | 30.1 (91) | 23.8 (44) | 40.2 (47) | |
| Student - % (N) | 11.6 (35) | 15.1 (28) | 6.0 (7) | |
| Other - % (N) | 7.0 (21) | 5.4 (10) | 9.4 (11) | |
| Treatment Arm (NAC) - % (N) | 50.7 (153) | 49.7 (92) | 52.1 (61) | 0.684 |
| Cannabis Use | ||||
| Days Using Cannabis (past 30 days) – Mean (SD) | 26.0 (6.2) | 25.8 (6.3) | 26.5 (6.1) | 0.094 |
| Total Cannabis Use (past 30 days; grams) – Mean (SD) | 75.0 (103.0) | 67.8 (89.0) | 86.5 (122.1) | 0.027 |
| Cannabis Use per Day (past 30 days; grams) – Mean (SD) | 2.5 (3.4) | 2.9 (4.1) | 2.3 (3.0) | 0.027 |
| Urine Cannabinoid Level (ng/ml) – Mean (SD) | 1075 (1430) | 1079 (1451) | 1069 (1401) | 0.847 |
| Age at First Use – Mean (SD) | 15.2 (3.4) | 15.5 (3.3) | 14.8 (3.5) | 0.018 |
| Years to Dependence – Mean (SD) | 5.6 (6.0) | 4.6 (4.4) | 7.2 (7.6) | 0.027 |
| Tobacco Use | ||||
| Cigarette Smoking Frequency | ||||
| Every Day - % (N) | - | - | 77.8 (91) | - |
| Some Days - % (N) | - | - | 22.2 (26) | - |
| Cigarettes per Day (past 30 days) – Mean (SD) | - | - | 8.2 (7.6) | - |
| Smoking Days (past 30 days) – Mean (SD) | - | - | 26.1 (7.7) | - |
| FTND Score – Mean (SD) | - | - | 3.1 (2.3) | - |