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Table 4 Logistic regression analysis examining negative outcomes from alcohol consumption by 15 and 16 year olds and their relationship with demographics, drinking behaviour and sources of alcohol

From: Teenage drinking, alcohol availability and pricing: a cross-sectional study of risk and protective factors for alcohol-related harms in school children

    Drink in public places (streets, parks, shops) Violence when drunk Alcohol-related regretted sex Tend to forget things after drinking
    AOR 95% CIs P AOR 95% CIs P AOR 95% CIs P AOR 95% CIs P
   Sex (Male) ns     1.18 1.03 1.35 <0.05 0.70 0.59 0.83 <0.001 0.64 0.58 0.71 <0.001
   Age (16 years) 0.89 0.79 1.00 <0.05 ns     ns     ns    
Deprivation Wealthiest 1 (ref) ns        <0.001 ns     ns    
quintile   2      1.21 0.98 1.49 0.069         
   3      1.23 1.00 1.52 0.052         
   4      1.49 1.21 1.83 <0.001         
  Poorest 5      1.47 1.20 1.79 <0.001         
Weekly   < = £10 (ref) ns        <0.001     <0.001     <0.05
income   >£10-20      1.09 0.93 1.27 0.302 0.95 0.77 1.18 0.647 1.23 1.08 1.39 <0.01
   >£20-30      1.35 1.12 1.62 0.002 1.20 0.94 1.54 0.140 1.15 0.98 1.35 0.077
   >£30      1.35 1.14 1.59 <0.001 1.48 1.20 1.82 <0.001 1.07 0.93 1.23 0.340
Source$   Buy my own ns     1.55 1.36 1.76 <0.001 1.83 1.55 2.15 <0.001 ns    
   Parents provide 0.51 0.45 0.57 <0.001 0.57 0.50 0.65 <0.001 0.75 0.64 0.88 <0.001 0.75 0.68 0.83 <0.001
   Get adults outside shop to buy it 7.79 6.51 9.32 <0.001 2.13 1.82 2.49 <0.001 1.48 1.22 1.80 <0.001 1.40 1.21 1.62 <0.001
Drink type   Alcopops ns     0.82 0.72 0.94 <0.01 ns     ns    
consumed$   Beer Cans or Bottles 1.39 1.24 1.57 <0.001 1.24 1.08 1.43 <0.01 1.24 1.04 1.47 <0.05 ns    
   Cider Cans or Bottles ns     ns     ns     ns    
   Wine 0.77 0.66 0.89 <0.001 ns     ns     ns    
   Spirits 1.44 1.28 1.63 <0.001 1.49 1.31 1.71 <0.001 ns     1.22 1.10 1.36 <0.001
   Large Value Cider Bottles 2.78 2.27 3.40 <0.001 1.29 1.07 1.56 <0.01 1.39 1.12 1.73 <0.01 1.31 1.10 1.57 <0.01
Drinking   Less than once a month (ref)     <0.001     <0.01 ns     ns    
frequency   1-3 times a month 1.39 1.11 1.75 <0.005 0.97 0.74 1.25 0.796         
   Once a week 1.71 1.34 2.17 <0.001 1.05 0.80 1.38 0.724         
   Twice a week 1.76 1.33 2.31 <0.001 1.35 1.00 1.81 0.050         
   3+ Times a week 1.65 1.14 2.38 <0.01 1.84 1.26 2.68 <0.01         
Binge   Never (ref)     <0.001     <0.001     <0.001     <0.001
frequency   Less than once a month 1.83 1.41 2.37 <0.001 1.85 1.36 2.52 <0.001 1.37 0.90 2.09 0.143 1.97 1.62 2.40 <0.001
   1-3 times a month 2.55 1.94 3.36 <0.001 3.05 2.19 4.23 <0.001 1.65 1.09 2.51 <0.05 2.80 2.29 3.43 <0.001
   Once a week 3.24 2.43 4.34 <0.001 4.47 3.19 6.28 <0.001 2.63 1.73 3.98 <0.001 3.62 2.93 4.48 <0.001
   Twice a week 5.46 3.93 7.57 <0.001 7.34 5.08 10.60 <0.001 5.27 3.48 7.96 <0.001 4.72 3.77 5.91 <0.001
   3+ Times a week 4.15 2.52 6.83 <0.001 7.32 4.35 12.34 <0.001 7.09 4.31 11.64 <0.001 4.49 3.16 6.38 <0.001
  1. AOR = Adjusted Odds Ratio; 95% CIs = 95% Confidence Intervals; ns = not significant. $Categories in these sections are separate binary variables (e.g. alcopop consumer yes/no, beer in cans or bottles consumer yes/no, buy my own yes/no, etc) and so are included in the model as separate variables. Reference categories thus consist of persons not reporting having consumed that drink, and not accessing alcohol from that source.
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