Variables | Model 1 | 95% CI | Model 2 | 95% CI |
---|---|---|---|---|
Higher risk of depression | 2.21*** | 1.61, 3.03 | 2.25*** | 1.64, 3.10 |
Lower risk of depression | Ref | Ref | Ref | Ref |
Grade level | Â | Â | Â | Â |
  10 | 2.04*** | 1.46, 2.85 | 1.89*** | 1.35, 2.64 |
  11 | 1.27 | 0.90, 1.78 | 1.32 | 0.93, 1.85 |
  12 | Ref |  | Ref |  |
Gender | Â | Â | Â | Â |
  Male | 2.53*** | 1.89, 3.37 | 2.40*** | 1.80, 3.20 |
  Female | Ref |  | Ref |  |
Weekly spending money, $ | Â | Â | Â | Â |
  40 or more | 1.10 | 0.82, 1.48 | 1.16 | 0.86, 1.56 |
  Unknown | 0.69 | 0.44, 1.08 | 0.77 | 0.49, 1.21 |
  Below 40 | Ref |  | Ref |  |
Risk taking behaviours | Â | Â | Â | Â |
  Current smoker | 2.20*** | 1.54, 3.14 | 1.95*** | 1.35, 2.81 |
  Nonsmoker | Ref |  | Ref |  |
  Heavy drinking | 1.61** | 1.06, 2.44 |  |  |
  Light drinking | 1.36 | 0.93, 2.00 |  |  |
  No drink | Ref |  |  |  |
  Frequent marijuana use |  |  | 2.22*** | 1.53, 3.23 |
  Infrequent marijuana use |  |  | 1.11 | 0.75, 1.66 |
  No marijuana |  |  | Ref |  |
  Multiple partners | 2.48*** | 1.69, 3.65 | 2.27*** | 1.52, 3.37 |
  Single partner | 1.44** | 1.01, 2.06 | 1.38 | 0.97, 1.97 |
  Sexually inactive | Ref |  | Ref |  |
Individual school measures | Â | Â | Â | Â |
  Academic Marks ≥70% | 0.83 | 0.61, 1.14 | 0.89 | 0.65, 1.21 |
  Academic Marks <70% | Ref |  | Ref |  |
  Absence from school 3 days or more | 1.69*** | 1.18, 2.42 | 1.52** | 1.05, 2.18 |
  Absence from school 1 or 2 days | 1.63*** | 1.17, 2.28 | 1.54** | 1.10, 2.14 |
  No absence from school | Ref |  | Ref |  |
  School team sports | 0.98 | 0.74, 1.31 | 1.03 | 0.77, 1.38 |
  No school team sports | Ref |  | Ref |  |