Spearmen correlation coefficient
| Characteristics | Spearmen correlation coefficient | |
|---|---|---|
| ASAS-HI (0–17) | p value | |
| Age | 0.27 | <0.05 |
| Pain (0–10) | 0.65 | <0.001 |
| Night spinal pain (0–10) | 0.54 | <0.001 |
| ASDAS | 0.51 | <0.001 |
| BASDAI (0–10) | 0.60 | <0.001 |
| BASFI (0–10) | 0.54 | <0.001 |
| SF-36 Total | 0.46 | <0.001 |