| Socioeconomic status, scores |  | |||||||
---|---|---|---|---|---|---|---|---|---|
 | 1st | 2nd | 3rd | 4th |  | ||||
 | OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | P for Trend |
Boys | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Model 1 | 1.00 | (reference) | 0.91 | (0.55-1.49) | 0.93 | (0.59-1.49) | 1.10 | (0.69-1.74) | 0.65 |
   Model 2 | 1.00 | (reference) | 0.82 | (0.47-1.45) | 0.98 | (0.59-1.62) | 1.13 | (0.68-1.87) | 0.49 |
   Model 3 | 1.00 | (reference) | 0.82 | (0.46-1.44) | 0.96 | (0.58-1.59) | 1.04 | (0.62-1.75) | 0.71 |
   Model 4 | 1.00 | (reference) | 0.80 | (0.45-1.41) | 0.95 | (0.57-1.59) | 1.07 | (0.63-1.79) | 0.64 |
Girls | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Model 1 | 1.00 | (reference) | 0.76 | (0.41-1.42) | 1.57 | (0.94-2.64) | 2.02 | (1.20-3.39) | 0.0006 |
   Model 2 | 1.00 | (reference) | 0.70 | (0.36-1.36) | 1.29 | (0.75-2.23) | 1.82 | (1.06-3.10) | 0.005 |
   Model 3 | 1.00 | (reference) | 0.69 | (0.36-1.34) | 1.31 | (0.76-2.25) | 1.96 | (1.14-3.38) | 0.002 |
   Model 4 | 1.00 | (reference) | 0.69 | (0.35-1.35) | 1.29 | (0.74-2.24) | 2.17 | (1.24-3.78) | 0.001 |