Table 6.  Univariate and multivariate regression analysis of factors to influence HAQ score.
| Factor | P value | |
| Univariate | Multivariate | |
| TUG | <0.001 | 0.019 |
| Muscle strength | Dominant/non-dominant | Dominant/non-dominant |
| Quadriceps | 0.002/0.004 | 0.1597/0.13 |
| Biceps | <0.001/ <0.001 | - /0.017 |
| Forearm flexors | 0.005/0.002 | 0.168/ - |
| Hand grip | <0.001/ <0.001 | 0.028/ - |
| Pulp pinch | <0.001/ <0.001 | 0.045/0.017 |
| Side pinch | <0.001/ <0.001 | 0.11/ - |
| ROM | ||
| Knee flexion | 0.033/0.045 | 0.222/0.225 |
| Knee extension | 0.239/0.129 | 0.021/0.057 |
| Elbow flexion | 0.224/0.892 | 0.017/0.05 |
| Elbow extension | 0.032/0.048 | - / - |
| TPD thumb | <0.001/ <0.001 | - / - |
| TPD index finger | 0.024/0.007 | - / - |