| Variable | 25(OH)D | |
| Spearman’s r | P-value | |
| Age (years) | −0.354 | 0.724 |
| BMI | −1.690 | 0.09 |
| Sun exposure | 0.452 | 0.000 |
| Veiling | −0.233 | 0.01 |
| Dairy consumption | 0.367 | 0.000 |
| Vitamin D supplementation | 0.379 | 0.003 |
| Parity | −0.340 | 0.001 |
| Fatigue | −0.239 | 0.019 |
| Proximal muscle weakness | −0.188 | 0.06 |
| Body ache | −0.204 | 0.04 |
| Localized hip pain | −0.327 | 0.001 |
| Localized hip tenderness | −0.293 | 0.001 |
| Ca | 4.217 | 0.000 |
| Ph | 0.494 | 0.623 |
| ALP | −3.802 | 0.000 |
| PTH | −4.105 | 0.000 |
| Improvement of symptoms | −0.748 | 0.0000 |