Table 1.
Baseline Characteristics by Age Group Category
| 18–24 | ≥25 | p valuea | |
|---|---|---|---|
| N | 28 | 141 | |
| Gender no. (% female) | 22 (78.6) | 98 (69.5) | .37 |
| Population no. (%) | <.0001 | ||
| Affective disorders | 13 (46.3) | 43 (30.5) | |
| Opioid maintained | 1 (3.6) | 59 (41.8) | |
| Disadvantaged women | 14 (50) | 39 (27.7) | |
| Race no. (%) | |||
| Asian | 0 (0) | 1 (0.7) | .34 |
| Black | 3 (10.7) | 20 (14.2) | |
| Hawaiian/Pacific Islander | 0 (0) | 1 (0.7) | |
| Latino/Hispanic | 3 (10.7) | 3 (2.1) | |
| More than one race | 3 (10.7) | 12 (8.5) | |
| White | 19 (67.9) | 104 (73.8) | |
| Menthol status no. (% menthol) | 9 (32.) | 50 (35.5) | .39 |
| Cigarettes per day | 13.1 (6.7) | 16.3 (7.5) | .04 |
| FTND, mean (SD) | 4.3 (1.9) | 5.1 (2.8) | .04 |
| Age at first cigarette | 16.4 (2.5) | 16.2 (4.5) | .90 |
| Breath carbon monoxide | 18.4 (6.7) | 23.2 (12.6) | .05 |
a p values represent t-tests of differences across groups or chi-squared tests for differences across categorical variables. Bold text indicates significant effects at below 0.05. FTND = Fagerström Test for Nicotine Dependence.