Table 1. the difference between visits regarding pain scale and flexion degree in grade II Osteoarthritis patients.
Z score and P-value calculated using Wilcoxon signed-rank tests between the visit and the one before it.
* Statistically significant with P-value ≤ 0.05
| Grade II | Initial pain | 1st follow up (3 months) | 2nd follow up (6 months) | 3rd follow up (9 months) | Initial flexion | 1st follow up (3 months) | 2nd follow up (6 months) | 3rd follow up (9 months) | |
| 2 Visits | Mean | 6 | 3.8 | - | - | 122.10o | 121.90o | - | - |
| Median | 6.5 | 4 | - | - | 120o | 125o | - | - | |
| Z score | - | -5.607 | - | - | - | -0.451 | - | - | |
| P-value | - | 0.000* | - | - | - | 0.652 | - | - | |
| 3 Visits | Mean | 6.67 | 5 | 5.67 | - | 122.33o | 123.33o | 114o | - |
| Median | 8 | 5 | 6 | - | 129o | 130o | 116o | - | |
| Z score | - | -1.71 | -2.828 | - | - | -2.828 | -0.238 | - | |
| P-value | - | 0.087 | 0.005* | - | - | 0.01* | 0.812 | - | |
| 4 Visits | Mean | 6 | 6.25 | 4.75 | 2.25 | 120.25o | 123.75o | 118.25o | 126.50o |
| Median | 6 | 6 | 4.5 | 2 | 122.50o | 130o | 120o | 125o | |
| Z score | - | -0.545 | -3.704 | -3.095 | - | -1.789 | -3.053 | -3.159 | |
| P-value | - | 0.586 | 0.000* | 0.002* | - | 0.074 | 0.002* | 0.002* | |