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Table 2 Programme effects by socioeconomic level of the school area from multilevel models

From: The influence of socioeconomic environment on the effectiveness of alcohol prevention among European students: a cluster randomized controlled trial

Socioeconomic level of the school area
  Low Medium High Whole sample
  (n = 1819) (n = 1742) (n = 1980) (n = 5541)
  OR 95%CI OR 95%CI OR 95%CI OR 95%CI
Any current drinking 0.84 0.64-1.09 1.08 0.77-1.52 0.93 0.69-1.24 0.95 0.81-1.12
Weekly drinking 0.83 0.61-1.12 1.14 0.82-1.58 0.91 0.69-1.21 0.92 0.77-1.09
Intention to drink in the next year 0.76 0.58-1.00 1.12 0.83-1.50 1.18 0.91-1.53 0.99 0.85-1.16
Episodes of drunkenness in the past 30 days 0.63 0.47-0.88 0.92 0.65-1.31 0.88 0.62-1.23 0.79 0.65-0.95
Intention to get drunk in the next year 0.61 0.48-0.79 1.00 0.75-1.32 0.96 0.73-1.26 0.82 0.71-0.96
Alcohol-related problem behaviour in the past 12 months 0.68 0.44-1.06 0.97 0.63-1.49 0.85 0.58-1.25 0.78 0.62-0.98
  1. Results from multilevel models adjusted for gender, age, family living situation and baseline status of the outcome: odds ratios (OR) and 95% confidence interval (95%CI) of alcohol-related behaviour for students in the intervention group compared to the controls, by socioeconomic level of the school area. The EU-Dap Study, 18-month follow-up.