Table 2

 Prevalence of spondyloarthropathy across age groups

Age classRate (%)95% CI
18–240.140.014 to 0.42
25–340.280.07 to 0.64
35–440.310.09 to 0.65
45–540.370.05 to 1.00
55–640.450.08 to 1.16
65–740.400.07 to 1.01
75–840.090.002 to 0.33
85+0.00.