| Prevalence (%, 95% CI) | OR (95% CI) | P-value | Prevalence (%, 95% CI) | OR (95% CI) | P-value |
---|---|---|---|---|---|---|
 | Aged 40–64 (n = 9896) | Aged 65 and more (n = 3023) | ||||
Total | 7.8 (7.2–8.5) |  |  | 13.1 (11.8–14.7) |  |  |
Non-users | 5.6 (5.0–6.3) | 1 |  | 7.4 (6.0–9.1) | 1 |  |
Former smokers | 8.3 (7.1–9.8) | 1.49 (1.11–2.00) | 0.008 | 17.0 (14.5–19.7) | 2.12 (1.38–3.25) | 0.030 |
Current smokers | 11.5 (9.9–13.3) | 1.97 (1.50–2.60) |  < 0.001 | 24.4 (19.5–30.2) | 3.27 (1.99–5.39) |  < 0.001 |
Dual users | 12.9 (7.9–20.3) | 2.45 (1.35–4.46) | 0.003 | 28.0 (10.2–57.1) | 4.14 (1.11–15.39) | 0.030 |
Ptrend |  < 0.001 |  < 0.001* |  |  < 0.001 |  < 0.001* |  |
Men | 9.2 (8.3–10.2) |  |  | 17.2 (15.2–19.4) |  |  |
Non-users | 4.6 (3.2–6.5) | 1 |  | 10.2 (6.7–15.2) | 1 |  |
Former smokers | 8.3 (7.0–9.9) | 1.82 (1.19–2.79) | 0.006 | 17.0 (14.5–19.8) | 1.93 (1.21–3.09) | 0.008 |
Current smokers | 11.9 (10.2–13.8) | 2.55 (1.70–3.85) |  < 0.001 | 24.0 (18.9–30.0) | 2.94 (1.68–5.15) |  < 0.001 |
Dual users | 13.2 (8.0–21.0) | 3.10 (1.55–6.21) | 0.001 | 28.0 (10.2–57.1) | 3.70 (0.96–14.23) | 0.050 |
Ptrend |  < 0.001 |  < 0.001* |  |  < 0.001 |  < 0.001* |  |
Women | 6.1 (5.4–6.9) |  |  | 7.5 (6.0–9.3) |  |  |
Non-users | 5.9 (5.2–6.7) | 1 |  | 6.6 (5.2–8.5) | 1 |  |
Former smokers | 8.6 (4.9–14.7) | 1.50 (0.78–2.73) | 0.236 | 16.0 (7.9–29.8) | 2.35 (0.99–5.58) | 0.002 |
Current smokers | 8.2 (5.2–12.7) | 1.13 (0.66–1.95) | 0.649 | 29.0 (13.8–50.9) | 4.74 (1.76–12.73) | 0.051 |
Dual users | 7.2 (0.9–39.2) | 0.94 (0.12–7.13) | 0.948 | – | – | – |
Ptrend |  < 0.001 | 0.444* |  |  < 0.001 | 0.001* |  |