| Baseline Characteristics (n=170) | Value | Univariate Analysis [Coefficient (p value)] |
|---|---|---|
| Mean Age (years) | 39.1±11.7 | 0.63 (<0.001) |
| Gender (% male) | 66% | 6.31 (0.01) |
| Ethnicity (% Caucasian) | 60% | –4.71 (0.06) |
| Mean Age at onset (years) | 24.1±9.29 | 0.1 (0.43) |
| Mean Disease Duration (years) | 15±11.1 | 0.66 (<0.001) |
| HLA B27 (% positivity overall/AS) | 80/87% | –0.63 (0.84) |
| % Uveitis | 43% | –2.25 (0.36) |
| Total Hip Arthroplasty (%) | 6% | 5.96 (0.24) |
| %FDR with AS | 17% | 6.36 (0.05) |
| On biologic (%) | 32% | –2 (0.44) |
| Mean ASDAS-CRP | 14.54±9.17 | n/a |
| Mean Smoking (pack years) | 3.00±8.02 | 0.83 (<0.001) |
| Mean Education (years) | 16±3 | –1.81 (<0.001) |