Table 2.
Prevalence and indicators of dependence. Values in parentheses 95% confidence intervals unless otherwise stated.
| Cigarettes | Snus | NR | Coffee | |
|---|---|---|---|---|
| n | 203 | 298 | 44 | 2139 |
| Prevalence daily use (%) | 6.8 (5.9–7.7) | 9.9 (8.9–11.0) | 1.5 (1.1–1.9) | 71.3 (69.6–72.9) |
| Heaviness of Smoking Index Score (mean, SD) | 2.17 (1.29) | 2.31 (1.33) | - | - |
| First use within 30 min (%) | 64.5 (57.8–70.9) | 67.8 (62.3–72.9) | 56.8 (42.1–70.6) | 42.9 (40.8–45.0) |
| First use the most important of all (%) | 64.5 (57.8–70.9) | 55.0 (49.4–60.6) | 45.5 (31.4–60.1) | 67.2 (65.2–69.2) |
| Would be very hard to give up (%) | 35.5 (29.1–42.2) | 33.6 (28.4–39.1) | 20.5 (10.6–34.0) | 18.2 (16.6–19.9) |
| Absolute numbers finding it very hard to give up | 72 | 100 | 9 | 389 |
SD: standard deviation, NR: nicotine replacement.