|  | Boys |  | |||
---|---|---|---|---|---|---|
 |  | Standing | Sitting |  | ||
 |  | Count | Col % | Count | Col % | p |
ATI T | Mean +/- 2 SD | 2696 | 95.70 | 2651 | 94.14 | 0.008 |
 | Beyond +/- 2 SD | 121 | 4.30 | 165 | 5.86 |  |
ATI T-L | Mean +/- 2 SD | 2701 | 95.88 | 2663 | 94.53 | 0.018 |
 | Beyond +/- 2 SD | 116 | 4.12 | 154 | 5.47 |  |
ATI L | Mean +/- 2 SD | 2696 | 95.70 | 2617 | 92.93 | <0.001 |
 | Beyond +/- 2 SD | 121 | 4.30 | 199 | 7.07 |  |
 |  | Girls |  | |||
ATI T | Mean +/- 2 SD | 2726 | 93.04 | 2732 | 93.27 | 0.720 |
 | Beyond +/- 2 SD | 204 | 6.96 | 197 | 6.73 |  |
ATI T-L | Mean +/- 2 SD | 2776 | 94.74 | 2739 | 93.51 | 0.045 |
 | Beyond +/- 2 SD | 154 | 5.26 | 190 | 6.49 |  |
ATI L | Mean +/- 2 SD | 2818 | 96.18 | 2746 | 93.75 | <0.001 |
 | Beyond +/- 2 SD | 112 | 3.82 | 183 | 6.25 |  |