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Table 3 Age differences in prevalence of tobacco use among adolescents (10–19 years) in urban and rural secondary schools in Enugu State

From: Disparities in tobacco use by adolescents in southeast, Nigeria using Global Youth Tobacco Survey (GYTS) approach

Variable Prevalence (95% CI) F P value
10–12 years (n = 430) 13–15 years (n = 2992) 16–19 years (n = 910)   
Ever use of tobacco
 Cigarettes 24.6 (18.7–31.6) 28.1 (24.6–32.0) 33.5 (29.0–38.3) 3.67 0.0294
 Other smoked tobacco 12.4 (8.8–17.3) 10.8 (9.0–13.0) 14.5 (11.9–17.5) 3.31 0.0420
 Smokeless tobacco 23.4 (18.7–29.1) 25.7 (22.7–29.1) 31.8 (28.4–35.4) 5.66 0.0048
Current use of tobacco
 Cigarettes 12.5 (8.6–17.9) 12.6 (10.4–15.2) 16.0 (13.1–19.3) 2.53 0.0866
 Other smoked tobacco 6.9 (4.4–10.8) 5.2 (4.0–6.8) 7.0 (5.1–9.6) 1.83 0.1685
 Smokeless tobacco 6.1 (3.9–9.3) 7.5 (5.9–9.6) 9.5 (7.4–12.1) 2.22 0.1152
 Any kind of tobacco 17.9 (13.4–23.5) 18.6 (15.6–22.0) 22.5 (19.1–26.2) 2.73 0.0707
 Both cigarettes and other smoked tobacco 4.2 (2.3–7.3) 2.9 (2.1–4.2) 4.7 (3.2–7.0) 2.80 0.0740
 Both cigarettes and smokeless tobacco 3.5 (2.0–6.2) 3.5 (2.4–4.9) 4.8 (3.2–7.0) 1.14 0.3230
 Both smokeless and other smoked tobacco 1.9 (0.8–4.1) 2.0 (1.3–3.1) 3.1 (1.9–4.9) 1.37 0.2584
 All 3 types of tobacco 1.9 (0.8–4.1) 1.6 (1.0–2.7) 2.4 (1.4–4.2) 0.89 0.4044
  1. F: Design-based χ2