| Boys | Girls | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Family affluence | Family affluence | ||||||||||
 | High | Medium |  | Low |  |  | High | Medium |  | Low |  |  |
 |  | OR | 95% CI | OR | 95% CI | p2 |  | OR | 95% CI | OR | 95% CI | p2 |
Belgium (Flanders) | 1.00 | 0.76 | (0.57–1.00) | 0.78 | (0.61–1.00) | ns | 1.00 | 0.94 | (0.68–1.29) | 1.00 | (0.75–1.33) | ns |
Canada | 1.00 | 0.75 | (0.56–1.11) | 0.78 | (0.56–1.10) | ns | 1.00 | 1.09 | (0.76–1.56) | 1.02 | (0.75–1.38) | ns |
Croatia | 1.00 | 0.78 | (0.57–1.11) | 0.74 | (0.55–0.98) | ns | 1.00 | 0.91 | (0.60–1.38) | 0.89 | (0.63–1.25) | ns |
Czech Republic | 1.00 | 0.92 | (0.68–1.25) | 0.87 | (0.66–1.15) | ns | 1.00 | 0.84 | (0.58–1.21) | 0.99 | (0.73–1.34) | ns |
Denmark | 1.00 | 0.80 | (0.61–1.05) | 0.99 | (0.71–1.38) | ns | 1.00 | 1.07 | (0.78–1.46) | 0.79 | (0.55–1.12) | ns |
Estonia | 1.00 | 0.75 | (0.57–0.99) | 0.77 | (0.57–1.05) | ns | 1.00 | 1.09 | (0.77–1.52) | 1.16 | (0.82–1.65) | ns |
Finland | 1.00 | 0.80 | (0.60–1.07) | 0.97 | (0.72–1.32) | ns | 1.00 | 0.79 | (0.58–1.07) | 1.19 | (0.86–1.63) | ** |
France | 1.00 | 0.84 | (0.63–1.12) | 1.08 | (0.80–1.47) | ns | 1.00 | 1.13 | (0.79–1.62) | 1.07 | (0.73–1.56) | ns |
Germany | 1.00 | 0.70 | (0.53–0.93) | 0.78 | (0.58–1.07) | ** | 1.00 | 0.99 | (0.73–1.34) | 0.93 | (0.67–1.30) | ns |
Greece | 1.00 | 0.95 | (0.68–1.31) | 0.69 | (0.45–1.05) | ns | 1.00 | 1.07 | (0.71–1.62) | 1.12 | (0.71–1.79) | ns |
Hungary | 1.00 | 0.62 | (0.44–0.87) | 0.61 | (0.42–0.87) | ** | 1.00 | 0.71 | (0.49–1.03) | 0.99 | (0.69–1.42) | ns |
Ireland | 1.00 | 0.74 | (0.46–1.19) | 0.67 | (0.43–1.05) | ns | 1.00 | 0.75 | (0.47–1.20) | 0.82 | (0.56–1.20) | ns |
Israel | 1.00 | 0.70 | (0.48–1.02) | 0.76 | (0.57–1.05) | ns | 1.00 | 0.76 | (0.46–1.27) | 0.87 | (0.59–1.29) | ns |
Italy | 1.00 | 0.76 | (0.54–1.07) | 0.92 | (0.60–1.40) | ns | 1.00 | 0.71 | (0.48–1.06) | 0.97 | (0.61–1.53) | ns |
Latvia | 1.00 | 0.69 | (0.49–0.96) | 0.71 | (0.50–1.04) | * | 1.00 | 0.72 | (0.48–1.08) | 0.66 | (0.44–0.99) | ns |
Malta | 1.00 | 0.83 | (0.47–1.46) | 0.74 | (0.44–1.25) | ns | 1.00 | 1.08 | (0.60–1.98) | 0.83 | (0.45–1.54) | ns |
Norway | 1.00 | 0.76 | (0.55–1.06) | 0.84 | (0.58–1.23) | ns | 1.00 | 1.06 | (0.75–1.51) | 1.12 | (0.77–1.65) | ns |
Poland | 1.00 | 0.81 | (0.63–1.05) | 0.80 | (0.61–1.05) | ns | 1.00 | 0.75 | (0.55–1.04) | 1.04 | (0.76–1.44) | ns |
Portugal | 1.00 | 0.62 | (0.43–0.91) | 0.49 | (0.30–0.80) | ** | 1.00 | 0.70 | (0.43–1.14) | 0.76 | (0.44–1.30) | ns |
Russia | 1.00 | 0.78 | (0.63–0.97) | 0.64 | (0.51–0.82) | ** | 1.00 | 1.05 | (0.82–1.33) | 0.85 | (0.66–1.09) | ns |
Scotland | 1.00 | 0.64 | (0.46–0.87) | 0.89 | (0.64–1.25) | * | 1.00 | 1.13 | (0.79–1.61) | 1.11 | (0.76–1.62) | ns |
Slovenia | 1.00 | 0.73 | (0.52–1.01) | 0.81 | (0.59–1.09) | ns | 1.00 | 1.05 | (0.71–1.57) | 0.71 | (0.48–1.04) | ns |
Spain | 1.00 | 0.90 | (0.61–1.31) | 0.87 | (0.62–1.22) | ns | 1.00 | 0.88 | (0.59–1.31) | 0.97 | (0.69–1.35) | ns |
Sweden | 1.00 | 0.45 | (0.30–0.68) | 0.43 | (0.30–0.62) | *** | 1.00 | 1.10 | (0.71–1.69) | 1.25 | (0.87–1.78) | ns |
Switzerland | 1.00 | 0.96 | (0.71–1.29) | 1.07 | (0.76–1.51) | ns | 1.00 | 0.90 | (0.60–1.34) | 1.02 | (0.66–1.57) | ns |
Ukraine | 1.00 | 1.11 | (0.81–1.53) | 1.08 | (0.83–1.40) | ns | 1.00 | 0.86 | (0.62–1.20) | 0.91 | (0.70–1.18) | ns |
USA | 1.00 | 0.81 | (0.58–1.12) | 0.78 | (0.51–1.19) | ns | 1.00 | 1.24 | (0.89–1.72) | 1.22 | (0.82–1.84) | ns |
Wales | 1.00 | 1.10 | (0.83–1.46) | 0.91 | (0.66–1.27) | ns | 1.00 | 1.10 | (0.78–1.53) | 0.88 | (0.62–1.27) | ns |
All countries | 1.00 | 0.82 | (0.77–0.86) | 0.80 | (0.76–0.85) | *** | 1.00 | 1.02 | (0.96–1.09) | 0.99 | (0.94–1.05) | ns |