Table 1.
Demographics and Baseline Smoking and Drinking Characteristics
| Variable | Level/unit | Overall | 15.8 mg/g | 5.2 mg/g | 2.4 mg/g | 1.3 mg/g | 0.04 mg/g | 0.04 mg/g HT |
|---|---|---|---|---|---|---|---|---|
| n | 403 | 64 | 61 | 67 | 71 | 60 | 80 | |
| Age | Years | 39.24 (13.75) | 39.93 (14.20) | 39.39 (13.70) | 40.16 (12.63) | 38.77 (14.63) | 40.38 (14.16) | 37.48 (13.42) |
| Sex | Female | 42.2 | 39.1 | 39.3 | 37.3 | 45.1 | 45.0 | 46.3 |
| Race | Non-Hispanic White | 57.8 | 57.8 | 50.8 | 59.7 | 62.0 | 45.0 | 60.0 |
| Black | 33.5 | 37.5 | 41.0 | 32.8 | 28.2 | 36.7 | 27.5 | |
| Education | High school or less | 34.7 | 32.8 | 42.6 | 31.3 | 36.6 | 33.3 | 322.5 |
| Some college or more | 65.3 | 67.2 | 57.4 | 68.7 | 63.4 | 66.7 | 67.5 | |
| Menthol | Menthol smoker | 52.9 | 54.7 | 50.8 | 59.7 | 49.3 | 48.3 | 53.8 |
| Cigarettes per day | 14.98 (7.23) | 14.81 (7.50) | 14.97 (7.21) | 14.75 (7.05) | 14.98 (7.43) | 14.52 (6.80) | 15.66 (7.51) | |
| Fagerström Test for Nicotine Dependence | Total score | 4.66 (2.27) | 4.50 (2.50) | 4.87 (2.14) | 4.61 (2.31) | 4.52 (2.40) | 4.48 (2.14) | 4.93 (2.13) |
| Alcohol | Drinks per day | 0.98 (1.57) | 1.11 (2.02) | 1.12 (1.65) | 1.09 (1.82) | 0.80 (1.27) | 1.05 (1.51) | 0.78 (1.12) |
| Binge | Any binge | 11.7 | 9.4 | 11.5 | 11.9 | 11.0 | 16.7 | 11.9 |
| Michigan Alcohol Screening Test—Short Form | Total score | 3.56 (2.01) | 3.44 (1.91) | 3.51 (1.89) | 3.57 (2.03) | 3.17 (2.00) | 4.13 (2.05) | 3.60 (2.08) |
HT, high tar.
Means (standard deviations) are reported for continuous outcomes, and proportions are reported for dichotomous/categorical outcomes. None of the baseline characteristics significantly differed between the study conditions, which were determined using omnibus chi-square tests for dichotomous outcomes (ps > 0.59) and 1-way ANOVAs for continuous outcomes (ps > 0.39).