Table 5 Multivariate analysis for possible risk factors
| Â | 95% confidence interval for Exp (B) | ||||||
|---|---|---|---|---|---|---|---|
Factor | β | SE | Wald | P | Exp (B) | Lower | Upper |
Age at initial physiotherapy session(day) | -0.065 | 0.021 | 10.062 |  < 0.05 | 0.937 | 0.900 | 0.975 |
Presence of DDH | 2.028 | 1.104 | 3.374 |  > 0.05 | 7.602 | 0.873 | 66.212 |
Maximum thickness of the involved SCM (mm) | -1.156 | 3.078 | 0.141 |  > 0.05 | 0.315 | 0.001 | 131.150 |
Thickness difference of the involved and normal SCMs (mm) | 1.457 | 3.462 | 0.177 |  > 0.05 | 4.293 | 0.005 | 3795.911 |
Thickness ratio of the involved to normal SCM | -0.622 | 1.420 | 0.192 |  > 0.05 | 0.537 | 0.033 | 8.676 |