Baseline demographics and smoking history (percent or mean±SD) of participants (N=391) by treatment group
| Overall | Nicotine gum | Camel snus | ||||
|---|---|---|---|---|---|---|
| Age (years) | 391 | 43.9±12.5 | 195 | 44.7±12.5 | 196 | 43.2±12.5 |
| Female | 184 | 47.1% | 95 | 48.7% | 89 | 45.4% |
| Non-Hispanic whites | 320 | 81.8% | 165 | 84.6% | 155 | 79.1% |
| Education | ||||||
| Some high school | 25 | 6.4% | 11 | 5.6% | 14 | 7.1% |
| High school graduate or equivalent | 107 | 27.4% | 52 | 26.7% | 55 | 28.1% |
| Some college/2-year degree | 192 | 49.1% | 99 | 50.8% | 93 | 47.5% |
| College graduate/4-year degree | 51 | 13.0% | 25 | 12.8% | 26 | 13.3% |
| Graduate | 16 | 4.1% | 8 | 4.1% | 8 | 4.1% |
| Cigarettes per day | 391 | 18.0±6.5 | 195 | 18.3±6.8 | 196 | 17.8±6.2 |
| Age smoking first cigarette (years) | 386 | 14.3±4.2 | 194 | 14.4±4.3 | 192 | 14.2±4.1 |
| Age becoming a regular smoker (years) | 386 | 17.6±4.8 | 194 | 17.8±5.3 | 192 | 17.3±4.1 |
| Ever tried smokeless tobacco | 171 | 44.4% | 79 | 40.7% | 92 | 48.2% |
| Ever tried nicotine gum | 117 | 29.9% | 60 | 30.8% | 57 | 29.1% |
| Number of quit attempts | ||||||
| 0–2 | 140 | 36.3% | 68 | 35.1% | 72 | 37.5% |
| 3–5 | 141 | 36.5% | 74 | 38.1% | 67 | 34.9% |
| 6–10 | 57 | 14.8% | 26 | 13.4% | 31 | 16.2% |
| 11–20 | 48 | 12.4% | 26 | 13.4% | 22 | 11.5% |
| FTND | 390 | 5.1±2.0 | 195 | 5.0±1.9 | 195 | 5.2±2.0 |
FTND, Fagerstrom Test for Nicotine Dependence.
Where data is missing, N is less than 391.