Table 1.
Subject demographics / Baseline self-report
| Overall Sample | N-Acetylcysteine Group | Placebo Group | Chi2 / t | p (two-tailed) | |
|---|---|---|---|---|---|
| % Female | 31 | 25 | 38 | 0.29 | 0.59 |
| Mean Age | 36.5 (11.9) | 35.0 (14.4) | 38 (9.6) | 0.59 | 0.63 |
| Years of Education | 13.4 (1.9) | 13.75 (2.1) | 13.13 (1.9) | 0.6 | 0.5 |
| Race | 0.25 | 0.61 | |||
| African Americans (#) | 9 | 4 | 5 | ||
| Caucasians (#) | 7 | 4 | 3 | ||
| Baseline Clinical Measures | |||||
| Nicotine Dependence (FTND) | 5.8 (1.4) | 5.3 (1.6) | 6.4 (1.1) | 1.6 | 0.12 |
| Years Smoking | 15.7 (8.9) | 13.8 (9.9) | 17.6 (8.0) | 0.86 | 0.4 |
| Average Daily Cigarettes | 15.8 (6.1) | 16.3 (5.3) | 15.4 (7.2) | 0.28 | 0.79 |
| Carbon Monoxide (CO) (Screening) | 25.6 (16.8) | 25.0 (18.4) | 26.3 (16.3) | 0.14 | 0.89 |
| Depressive Symptoms (CESD) | 6.9 (4.9) | 6.5 (5.9) | 7.4 (4.1) | 0.35 | 0.74 |
| Cognitive Failures (CFQ) | 26.9 (16.3) | 31.0 (12.1) | 22.9 (19.6) | 0.99 | 0.34 |
Note. Standard deviation reported in parentheses next to mean where applicable.