Predictor variables

Odds ratio

CI

df

p value

Gender-female

0.776

0.574 - 1.049

1

0.099

Experienced harms

1.306

1.224 - 1.392

1

0.000*

Second-hand harms

1.041

0.985 - 1.101

1

0.150

Witnessed harms

0.991

0.938 - 1.047

1

0.756

Academic problems

1.143

1.066 - 1.225

1

0.000*

Attitudes

1.106

1.050 - 1.165

1

0.000*

Number of friends who drink alcohol

1.265

1.079 - 1.483

1

0.004**

Close friends level of alcohol consumption

1.404

1.212 - 1.628

1

0.000*

Pre-loading in last 4 weeks

1.640

1.248 - 2.154

1

0.000*

Level of consumption when pre-loading

1.418

1.200 - 1.675

1

0.000*