Table 3.

Simplified multivariable regression model for prediction of joint damage progression. The 3 baseline prognostic factors were anti-CCP positivity > 25 U/ml, ESR > 25 mm/h, and presence of ≥ 1 erosion. The model was corrected for age and sex.

VariablesValuesnβOR95% CIp
No. risk factors056
11281.363.911.26–12.090.018
21462.9310.953.70–32.40< 0.001
3953.6137.0111.74–116.6< 0.001
Age< 45
45–64−0.230.790.45–1.390.415
> 64−0.770.460.25–0.860.015
SexFemale−0.400.700.42–1.060.085
Constant−1.530.220.06–0.850.028
  • Anti-CCP: anticyclic citrullinated peptide antibodies; ESR: erythrocyte sedimentation rate.