Table 3.
The vitamin D status and the disease severity among the knee osteoarthritis patients
| Vitamin D status |
Disease severity on X-ray |
P value | |||
| I | II | III | IV | ||
| Sufficient | 27 | 22 | 17 | 12 | 0.07 |
| Insufficient | 4 | 9 | 11 | 9 | |
| Deficient | 4 | 13 | 10 | 8 | |
| Parameter | KOOS Score | P value | |||
| Severity based on X-ray findings | |||||
| Early (KL grade I, II) | 80.05 (9.30) | < 0.001 | |||
| Advanced (KL grade III, IV) | 50.70 (14.71) | ||||
| Severity based on vitamin D level | |||||
| Sufficient | 65.31 (18.58) | 0.051 | |||
| Insufficient | 60.36 (19.61) | ||||
| Deficient | 65.31 (18.58) | ||||
KOOS: Knee Injury and Osteoarthritis Outcome Score; KL: Kellegren-Lawrence stage.