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Table 4 Simple 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 0.43 0.36 – 0.47 0.38 0.32 – 0.46 0.52 0.47 – 0.57 0.42 0.37 – 0.47
Parental involvement 0.85 0.82 – 0.89 0.88 0.84 – 0.93 0.94 0.91 – 0.97 0.91 0.88 – 0.94
School adjustment 0.78 0.74 – 0.84 0.76 0.70 – 0.82 0.88 0.84 – 0.91 0.83 0.79 – 0.87
Number of friends who smoke or drink alcohol 2.71 2.30 – 3.19 3.11 2.45 – 3.94 2.12 1.87 – 2.40 2.79 2.35 – 3.30
  1. Odds ratios and 95% confidence intervals for psychosocial variables influencing tobacco and alcohol use among Japanese boys and girls by simple 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).