| 
  
    | Table 4. Walk ratio and other gait parameters according to level of Emotional problems among adolescents. |  
    | 
| Emotional problem level | N | Mean (SD) | Mean Differences to Close to average | 95% Confidence Interval | P Value |  
| Walk Ratio[mm/(steps/min)] |  
| Close to average | 55 | 6.6(0.8) | Referent | Referent | Referent |  
| Slightly raised | 7 | 6.2(0.8) | -0.4 | -1.3, -0.5 | 1.000 |  
| High | 8 | 6.2(0.8) | -0.4 | -1.3, 0.4 | 1.000 |  
| Very high | 13 | 5.9(0.8) | -0.7* | -1.4, -0.03 | 0.034 |  
| Cadence [steps/min] |  
| Close to average | 55 | 112.8(8.3) | Referent | Referent | Referent |  
| Slightly raised | 7 | 112.6 (7.1) | -0.2 | -7.6, 7.2 | 1.000 |  
| High | 8 | 110.8(6.01) | -2.02 | -9.0, 4.9 | 0.892 |  
| Very high | 13 | 119.6 (5.9) | 6.8* | 1.1, 12.4 | 0.020 |  
| Step time [ms] |  
| Close to average | 55 | 536.7(35.8) | Referent | Referent | Referent |  
| Slightly raised | 7 | 536.9(33.6) | -0.1 | -34.1, 34.3 | 1.000 |  
| High | 8 | 544.9(28.4) | 8.1 | -24.1,40.4 | 0.926 |  
| Very high | 13 | 504.1(24.9) | -32.6* | -58.9, -6.4 | 0.014 |  
| Vigorous activity proportion in total time [%] |  
| Close to average | 60 | 0.6 (0.4) | Referent | Referent | Referent |  
| Slightly raised | 8 | 0.4(0.2) | -0.2 | -0.6, 0.2 | 0.772 |  
| High | 9 | 0.3(0.3) | -0.3 | -0.6, 0.1 | 0.279 |  
| Very high | 15 | 0.2(0.1) | -0.4* | -0.7, -0.1 | 0.012 |  
| Vigorous activity proportion in activity level [%] |  
| Close to average | 60 | 2.68 (2.02) | Referent | Referent | Referent |  
| Slightly raised | 8 | 1.9(1.1) | -0.7 | -2.5, 1.1 | 0.502 |  
| High | 9 | 1.5(1.2) | -1.2 | -2.9, 0.5 | 0.230 |  
| Very high | 15 | 0.9(1.2) | -1.7* | -3.1, -0.4 | 0.014 |  |  
  
    | * The mean difference is significant at the 0.05 level. |  |