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Table 3 Results of the logistic regression for factors associated with the practice of binge drinking in the month prior to the research among students in private high schools (n = 2561).

From: Social factors associated to binge drinking: a cross-sectional survey among Brazilian students in private high schools

Variable   cOR[95%CI] aOR[95%CI] p value
Sociodemographic     
Age   1.36[1.20-1.52] 1.46[1.23-1.73] < 0.001
Gender Male 1.62[1.26-2.08] 1.53[1.16-2.01] 0.004
  Female    reference
Monthly Tuition US$ 100- US$190 0.38[0.29-0.46] 0.59[0.39-0.91] 0.018
  US$ 191- US$ 260 0.50[0.40-0.64] 0.59[0.42-0.83] 0.004
  US$ 261- US$ 480 0.47[0.32-0.68] 0.53[0.33-0.85] 0.011
  US$ 481 -US$ 1300    reference
Family     
Living with mother No 1.91[1.31-2.78] 2.43[1.26-4.07] 0.010
  Yes    reference
10 min talks with parents Never 1.32[1.06-1.66] 1.68[1.28-2.21] 0.003
  Sometimes/rarely 0.99[0.55-1.81] 1.51[0.70-3.28] 0.280
  Always/often    reference
Parents talk about drugs Always/often 1.41[1.16-1.80] 1.80[1.29-2.52] < 0.001
  Sometimes/rarely 1.19[0.88-1.61] 1.24 [0.92-1.68] 0.149
  Never    reference
Someone you live with gets drunk No 0.54[0.40-0.73] 0.56[0.44-0.71] < 0.001
  Yes    reference
Leisure     
You went out with friends at night Almost every day 36.23[15.01-87.44] 33.88[14.22-80.70] < 0.001
  At least once a week 12.77[7.30-22.32] 12.09[6.78-21.54] < 0.001
  1 to 3 times a month 3.63[1.86-7.10] 3.39[1.71-6.72] 0.001
  Not even once    reference
Religiosity     
You trusted in God Not at all 1.78[1.27-2.47] 1.35[0.88-2.07] 0.159
  A little/sort of 1.55[1.28-1.88] 1.58[1.22-2.03] 0.001
  A lot/very much    reference
Participation in religious services     
  Almost every day 0.36[0.21-0.60] 0.50[0.27-0.91] 0.026
  At least once a week 0.53[0.44-0.65] 0.69[0.53-0.88] 0.005
  1 to 3 times a month 1.11[0.87-1.42] 1.22[0.91-1.64] 0.166
  Not even once    reference
  1. aOR = adjusted odds ratio (final model)
  2. cOR = crude odds ratio