Group | Crude analysisa | Adjusted model 1b | Adjusted model 2c |
---|---|---|---|
 | ß d (95% CI) | ß (95% CI) | ß (95% CI) |
All | 0.019 (0.002, 0.035) | 0.018 (0.004, 0.032) | 0.017 (0.002, 0.032) |
 | P = 0.027 | P = 0.011 | P = 0.026 |
Age (years) | |||
  8-11 | 0.010 (-0.010, 0.030) | 0.020 (0.001, 0.038) | 0.017 (-0.002, 0.037) |
 | P = 0.330 | P = 0.041 | P = 0.081 |
  12-15 | 0.013 (-0.012, 0.039) | 0.020 (-0.003, 0.044) | 0.019 (-0.005, 0.044) |
 | P = 0.306 | P = 0.088 | P = 0.118 |
Sex | Â | Â | Â |
  Female | 0.021 (-0.001, 0.043) | 0.020 (0.002, 0.038) | 0.015 (-0.004, 0.034) |
 | P = 0.065 | P = 0.028 | P = 0.115 |
  Male | 0.017 (-0.008, 0.042) | 0.016 (-0.007, 0.038) | 0.018 (-0.005, 0.041) |
 | P = 0.188 | P = 0.164 | P = 0.123 |