Table 1.
Baseline characteristics of included AS patients.
Table 2.
Associations between baseline characteristics and spinal radiographic damage over time.
Fig 1.
GEE estimated course of spinal radiographic progression in AS patients with 6 years of follow-up (n = 80), stratified for baseline risk factor.
Table 3.
GEE estimated mean 2-year spinal radiographic progression rates, stratified for baseline risk factors.
Table 4.
GEE estimated mean 2-year spinal radiographic progression rates over time of AS patients with multiple risk factors.