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Table 1 Age- and sex-specific prevalence of current and past smoking according to a marginal model in Shahroud, Iran (2009–2014)

From: Transition in tobacco use stages and its related factors in a longitudinal study

Variables

No.

Prevalence (%)

Current cigarette smoking (95% CI)

Current water pipe smoking (95% CI)

Overall current tobacco smoking (95% CI)

Overall past smoker (95% CI)

Age group

 40–44

969

7.95 (6.3–10.0)

0.52 (0.2–1.2)

8.4(6.6–10.5)

0.31(0.1–0.95)

 45–49

2247

9.66 (8.4–11.1)

0.71 (0.4–1.2)

10.2 (8.9–11.6)

1.6 (1.2–2.3)

 50–54

2557

11.69 (10.5–13.0)

0.78 (0.5–1.2)

12.4 (11.2–13.7)

2.9 (2.3–3.6)

 55–59

2130

11.41 (10.0–13.0)

1.03 (0.7–1.6)

12.4 (11.0–14.0)

5.2 (4.3–6.2)

 60–64

1465

9.69 (8.2–11.5)

1.37 (0.9–2.1)

10.8 (9.2–12.6)

5.7 (4.8–6.9)

 65–69

534

7.87 (5.9–10.4)

2.43 (1.4–4.1)

10.11 (7.8–13.0)

8.6 (6.5–11.3)

χ2 trend (P value)

 

0.43 (0.51)

16.5 (< 0.001)

4.9 (0.027)

128.6 (< 0.001)

Sex

 Female

5817

0.17 (0.09–0.3)

0.83 (0.6–1.1)

1.0 (0.8–1.3)

0.07 (0.03–0.18)

 Male

4085

24.7 (22.9–26.7)

1.18 (0.9–1.6)

25.6 (23.7–27.6)

8.6 (7.7–9.6)

 Total

9902

10.30 (9.5–11.2)

0.97 (0.8–1.2)

11.25 (10.4–12.2)

3.6 (3.2–4.0)