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Table 2 Daily smoking odds ratios (99% confidence interval), 1990 as reference category.

From: Smoking trends among adolescents from 1990 to 2002 in ten European countries and Canada

Country 1990 1994 1998 2002 Trend group
Boys
Finland 1 0.72 (0.50–1.04) 0.63 (0.43–0.92) 0.66 (0.46–0.96)* Group A
Sweden 1 1.00 (0.60–1.66) 0.87 (0.51–1.46) 0.54 (0.30–0.97)*  
Norway 1 0.88 (0.62–1.25) 1.02 (0.73–1.43) 0.85 (0.60–1.22)  
Austria 1 1.54 (0.96–2.47) 1.55 (0.94–2.56) 1.66 (0.99–2.78)  
Hungary 1 0.99 (0.69–1.43) 1.46 (0.93–2.29) 1.37 (0.92–2.06)  
Belgium 1 2.01 (1.31–3.08)** 2.49 (1.61–3.83)** 1.79 (1.18–2.73)** Group B
Canada 1 1.54 (1.07–2.23)* 1.63 (1.14–2.34)** 1.08 (0.69–1.71)  
UK 1 1.37 (1.00–1.86) 1.51 (1.12–2.02)** 1.06 (0.76–1.47)  
Switzerland 1 1.42 (0.80–2.55) 2.90 (1.76–4.77)** 2.36 (1.40–3.98)** Group C
Latvia 1 1.78 (1.02–3.13)* 2.11 (1.22–3.65)** 2.20 (1.27–3.79)**  
Poland 1 1.09 (0.73–1.62) 1.58 (1.11–2.27)* 1.55 (1.09–2.20)*  
Total 1 1.21 (1.08–1.37)** 1.41 (1.26–1.59)** 1.22 (1.08–1.38)**  
Girls
Finland 1 0.67 (0.45–1.01) 0.73 (0.49–1.10) 0.87 (0.60–1.28) Group A
Sweden 1 0.93 (0.59–1.47) 1.19 (0.76–1.85) 0.99 (0.63–1.54)  
Norway 1 0.93 (0.65–1.37) 1.37 (0.98–1.91) 1.32 (0.95–1.85)  
Belgium 1 1.13 (0.75–1.70) 1.94 (1.28–2.93)** 1.57 (1.05–2.35) Group B
Canada 1 1.46 (1.07–1.99)* 1.49 (1.10–2.02)* 0.62 (0.41–0.93)*  
UK 1 1.55 (1.19–2.02)** 2.03 (1.58–2.60)** 1.56 (1.18–2.06)**  
Austria 1 2.46 (1.31–4.64)** 3.50 (1.87–6.52)** 4.15 (2.18–7.89)** Group C
Switzerland 1 5.72 (2.51–13.05)** 8.71 (3.95–19.21)** 7.38 (3.30–16.54)**  
Latvia 1 3.47 (1.48–8.11)** 6.62 (2.93–14.93)** 8.60 (3.83–19.33)**  
Poland 1 1.50 (0.80–2.83) 2.61 (1.47–4.64)** 2.16 (1.24–3.78)**  
Hungary 1 1.14 (0.76–1.73) 1.02 (0.59–1.78) 2.07 (1.41–3.04)**  
Total 1 1.29 (1.14–1.46)** 1.76 (1.56–1.98)** 1.61 (1.43–1.82)**  
  1. Analyses for boys and girls separately and countries listed by same trend.
  2. Group A: declining or stabilising trend; Group B: increasing trend followed by decreasing trend; Group C: increasing trend with or without stabilisation in last surveys.
  3. * p < 0.01; ** p < 0.001