Table 6 Prevalence odds ratio (POR) and 95% confidence interval (CI) for cigarette smoking among 11–15-year-old adolescents by waterpipe smoking, HBSC survey 2006
From: Cigarette and waterpipe smoking among adolescents in Estonia: HBSC survey results, 1994–2006
Waterpipe smoking | Boys | Girls |
|---|---|---|
OR* (95% CI) | OR* (95% CI) | |
Do not smoke | 1 | 1 |
Less than once a week | 5.82 (4.45–7.61) | 4.93 (3.66–6.64) |
At least once a week ((including every day) | 12.33 (8.19–18.55) | 4.66 (2.55–8.54) |