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Table 5 Multiple logistic regression analyses

From: Psychosocial factors associated with smoking and drinking among Japanese early adolescent boys and girls: Cross-sectional study

  Tobacco use Alcohol use
  Boys (N= 1,402) Girls (N= 1,396) Boys (N= 1,402) Girls (N= 1,396)
Variable ORa 95%CIb ORa 95%CIb ORa 95%CIb ORa 95%CIb
Self-assertive efficacy against smoking or drinking 0.50 0.43 – 0.59 0.44 0.36 – 0.54 0.60 0.54 – 0.66 0.51 0.44 – 0.57
Parental involvement 0.92 0.88 – 0.97 0.97 0.91 – 1.04 1.00 0.96 – 1.03 0.99 0.95 – 1.03
School adjustment 0.90 0.83 – 0.97 0.82 0.74 – 0.91 0.97 0.92 – 1.02 0.90 0.85 – 0.95
Number of friends who smoke or drink alcohol 2.19 1.83 – 2.63 2.39 1.82 – 3.14 1.74 1.53 – 1.98 2.11 1.77 – 2.52
  1. Odds ratios and 95% confidence intervals for psychosocial variables influencing tobacco and alcohol use among Japanese boys and girls by multiple logistic regression analyses are shown.
  2. a Odds ratio. b Confidence interval.
  3. Bold indicates significant association to the dependent variables at p < 0.05 (two-tailed).