| Single indicator model | Fully adjusted model | ||
---|---|---|---|---|
Tobacco use | OR | 95 % CI | OR | 95 % CI |
 Any use (past 12 months) |  | |||
  Average or below average family income | 1.07 | 0.96,1.19 | 1.10 | 0.99,1.23 |
  Obligatory or elementary vocational education | 1.17 | 1.05,1.31 | 1.18 | 1.05,1.31 |
  Parents’ education(ref. tertiary) |  | |||
  Obligatory | 0.84 | 0.67,1.05 | 0.80 | 0.64,1.00 |
  Secondary | 0.92 | 0.83,1.03 | 0.90 | 0.80,1.00 |
 Daily use |  | |||
  Average or below average perceived family income | 1.35 | 1.18,1.55 | 1.31 | 1.14,1.50 |
  Obligatory or elementary vocational education | 1.33 | 1.16,1.53 | 1.31 | 1.14,1.51 |
  Parents’ education(ref. tertiary) |  | |||
   Obligatory | 1.16 | 0.89,1.52 | 1.03 | 0.78,1.35 |
   Secondary | 1.20 | 1.05,1.37 | 1.11 | 0.97,1.28 |
Cannabis use | Â | |||
 Any use (past 12 months) |  | |||
  Average or below average perceived family income | 0.90 | 0.80,1.01 | 1.01 | 0.90,1.14 |
  Obligatory or elementary vocational education | 1.20 | 1.06,1.35 | 1.23 | 1.09,1.40 |
  Parents’ education(ref. tertiary) |  | |||
   Obligatory | 0.54 | 0.42,0.70 | 0.53 | 0.41,0.68 |
   Secondary | 0.67 | 0.60,0.75 | 0.66 | 0.59,0.75 |
 More than once a week |  | |||
 Average or below average perceived family income | 1.19 | 0.99,1.43 | 1.27 | 1.05,1.54 |
  Obligatory or elementary vocational education | 1.36 | 1.13,1.65 | 1.37 | 1.13,1.66 |
  Parents’ education(ref. tertiary) |  | |||
   Obligatory | 0.77 | 0.52,1.13 | 0.68 | 0.46,1.00 |
   Secondary | 0.83 | 0.69,1.00 | 0.77 | 0.64,0.94 |
12-month use of other illicit drugsa | Â | |||
  Average or below average perceived family income | 0.89 | 0.71,1.10 | 0.96 | 0.77,1.21 |
  Obligatory or elementary vocational education | 1.45 | 1.15,1.83 | 1.48 | 1.18,1.87 |
  Parents’ education(ref. tertiary) |  | |||
   Obligatory | 0.60 | 0.36,0.98 | 0.58 | 0.35,0.97 |
   Secondary | 0.74 | 0.59,0.92 | 0.74 | 0.59,0.93 |
12-month use of NMPDb | Â | |||
  Average or below average perceived family income | 0.94 | 0.79,1.11 | 0.95 | 0.79,1.13 |
  Obligatory or elementary vocational education | 1.15 | 0.96,1.38 | 1.16 | 0.96,1.39 |
  Parents’ education (ref. tertiary) |  | |||
   Obligatory | 1.08 | 0.77,1.52 | 1.09 | 0.77,1.54 |
   Secondary | 0.89 | 0.75,1.06 | 0.90 | 0.75,1.08 |