| No hip disease | Hip disease | P-value | |
|---|---|---|---|
| n=154 (71.6%) | n=61 (29.4%) | ||
| Age* (years) | 49.5±13.63 | 58.16±11.53 | <0.001 |
| Age at onset* (years) | 26.14±8.4 | 23.16±7.38 | 0.017 |
| Male sex, n (%) | 113 (73.4) | 52 (85.2) | 0.063 |
| HLAB27+, n (%) | 132 (85.7) | 52 (85.2) | 0.790 |
| Peripheral arthritis, n (%) | 33 (21.4) | 25 (41.0) | 0.004 |
| Uveitis, n (%) | 40 (26.0) | 13 (21.3) | 0.475 |
| Biological treatment, n (%) | 41 (27.0) | 19 (31.1) | 0.54 |
| BASDAI* | 3.84±7.29 | 4.47±2.14 | 0.527 |
| BASFI* | 3.79±7.15 | 7.23±11.81 | 0.012 |
| ASDAS CRP* | 2.07±1.01 | 2.45±0.95 | 0.014 |
| ASDAS ESR* | 1.89±0.90 | 2.52±1.92 | 0.002 |
| Schober's index* (cm) | 3.61±1.55 | 2.43±1.69 | <0.001 |
| Chest expansion* (cm) | 4.97±1.84 | 3.67±2.02 | <0.001 |
| Cervical rotation* (cm) | 72.03±19.73 | 49.18±28.01 | <0.001 |
| Lateral flexion* (cm) | 12.96±5.18 | 7.85±4.1 | <0.001 |
| Occiput to wall distance* (cm) | 2.49±4.36 | 8.45±8.38 | <0.001 |
| Intermalleolar* (cm) | 100.22±21.22 | 82.37±17.91 | <0.001 |
| Axial BASRI* | 5.31±3.10 | 8.53±3.38 | <0.001 |
| Total SASSSm* | 10.24±16.07 | 30.67±27.31 | <0.001 |
*Mean ± SD.