Table 2.

Demographic and clinical features of AS patients according to radiographic progression.

FeaturesSlow ProgressionRapid Progressionp
No. women/men85/8815/470.001
Mean age, yrs, ± SD37.5 ± 11.044.0 ± 9.40.07
Mean age at onset, yrs, ± SD27.2 ± 9.727.5 ± 9.90.36
Mean disease duration, yrs, ± SD10.6 ± 8.512.8 ± 8.70.09
Delay in diagnosis, yrs, ± SD6.4 ± 7.17.8 ± 7.10.08
HLA-B27, %63860.005
Peripheral arthritis, %47210.001
Enthesitis, %54240.001
Hip involvement, %53460.35
Uveitis, %20280.26