Factors associated with axial ankylosis in patients with AS.
| Variables | Mean BASRI-lumbar Score | |||||
|---|---|---|---|---|---|---|
| Whole Group | p | Men with AS | p | Women with AS | p | |
| Women | 0.97 ± 0.14 | — | 0.97 ± 0.14 | |||
| Men | 1.77 ± 0.11 | < 0.0001 | 1.77 ± 0.11 | — | ||
| HLA-B27-positive | 1.58 ± 0.12 | 1.83 ± 0.16 | 1.10 ± 0.18 | |||
| HLA-B27-negative | 0.85 ± 0.18 | 0.002 | 0.81 ± 0.32 | 0.006 | 0.90 ± 0.20 | 0.47 |
| Peripheral arthritis | ||||||
| Present | 0.93 ± 0.14 | 1.21 ± 0.22 | 0.68 ± 0.16 | |||
| Absent | 1.78 ± 0.11 | < 0.0001 | 2.04 ± 0.15 | 0.003 | 1.30 ± 0.16 | 0.011 |
| Enthesitis | ||||||
| Present | 1.02 ± 0.18 | 1.42 ± 0.30 | 0.74 ± 0.19 | |||
| Absent | 1.72 ± 0.17 | 0.007 | 1.98 ± 0.21 | 0.13 | 0.98 ± 0.26 | 0.47 |
| Uveitis | ||||||
| Present | 1.57 ± 0.21 | 2.21 ± 0.33 | 1.00 ± 0.25 | |||
| Absent | 1.41 ± 0.11 | 0.53 | 1.68 ± 0.15 | 0.15 | 1.00 ± 0.15 | 0.96 |
| Hip involvement | ||||||
| Present | 1.36 ± 0.13 | 1.60 ± 0.19 | 1.00 ± 0.16 | |||
| Absent | 1.55 ± 0.13 | 0.33 | 1.96 ± 0.18 | 0.18 | 0.93 ± 0.18 | 0.65 |