Variable | Prevalence (95% CI) | F | P value | |
---|---|---|---|---|
 | All adolescents (10–19 years) | |||
Male (n = 1889) | Female (n = 2443) |  |  | |
Ever use of tobacco | ||||
 Cigarettes | 32.9 (28.8–37.2) | 25.9 (22.5–29.6) | 13.50 | 0.0006 |
 Other smoked tobacco | 14.1 (11.8–16.8) | 9.9 (8.0–12.1) | 11.06 | 0.0017 |
 Smokeless tobacco | 30.4 (27.1–34.0) | 24.0 (20.9–27.3) | 11.58 | 0.0014 |
Current use of tobacco | ||||
 Cigarettes | 15.6 (12.6–19.3) | 11.5 (9.6–13.8) | 8.52 | 0.0054 |
 Other smoked tobacco | 7.3 (5.6–9.4) | 4.6 (3.5–6.1) | 10.09 | 0.0026 |
 Smokeless tobacco | 9.3 (7.4–11.6) | 6.7 (5.2–8.5) | 7.08 | 0.0106 |
 Any kind of tobacco | 22.5 (18.7–26.8) | 16.9 (14.2–20.1) | 9.55 | 0.0034 |
 Both cigarettes and other smoked tobacco | 4.3 (3.1–6.0) | 2.8 (2.0–3.9) | 6.16 | 0.0167 |
 Both cigarettes and smokeless tobacco | 5.0 (3.6–6.9) | 2.8 (2.0–3.9) | 11.81 | 0.0012 |
 Both smokeless and other smoked tobacco | 3.0 (2.1–4.4) | 1.6 (1.0–2.6) | 8.50 | 0.0054 |
 All 3 types of tobacco | 2.5 (1.7–3.8) | 1.3 (0.8–2.1) | 9.75 | 0.0031 |
 | 13–15 year olds (N = 2992) | |||
Male (n = 1241) | Female (n = 1751) |  |  | |
Ever use of tobacco | ||||
 Cigarettes | 32.1 (27.6–36.9) | 25.4 (21.6–29.6) | 10.62 | 0.0021 |
 Other smoked tobacco | 13.0 (10.6–15.8) | 9.3 (7.2–11.8) | 7.69 | 0.0079 |
 Smokeless tobacco | 29.7 (25.7–34.1) | 22.9 (19.6–26.6) | 11.01 | 0.0018 |
Current use of tobacco | ||||
 Cigarettes | 15.1 (11.8–19.0) | 10.9 (8.8–13.3) | 8.36 | 0.0058 |
 Other smoked tobacco | 6.5 (4.7–9.0) | 4.3 (3.2–5.8) | 6.40 | 0.0148 |
 Smokeless tobacco | 9.1 (6.8–12.1) | 6.4 (4.9–8.4) | 6.42 | 0.0147 |
 Any kind of tobacco | 21.4 (17.3–26.1) | 16.6 (13.7–20.1) | 6.54 | 0.0138 |
 Both cigarettes and other smoked tobacco | 3.8 (2.4–6.0) | 2.3 (1.6–3.3) | 4.32 | 0.0431 |
 Both cigarettes and smokeless tobacco | 5.1 (3.4–7.5) | 2.3 (1.6–3.5) | 16.08 | 0.0002 |
 Both smokeless and other smoked tobacco | 2.8 (1.6–4.6) | 1.4 (0.8–2.6) | 4.68 | 0.0356 |
 All 3 types of tobacco | 2.3 (1.2–4.3) | 1.1 (0.6–2.0) | 5.34 | 0.0253 |