Table 5

 Baseline characteristics and mortality risk of rheumatoid arthritis

Baseline factorNo of patientsHazard ratio95% CIp Value
CI, confidence interval; ESR, erythrocyte sedimentation rate.
Rheumatoid factor
    Positive631.761.33 to 2.26<0.001
    Negative170.850.49 to 1.34>0.5
Radiographic bone erosion
    Present391.671.19 to 2.270.002
    Absent361.380.94 to 1.940.078
ESR
    ⩽40 mm/h481.681.24 to 2.21<0.001
    >40 mm/h381.300.89 to 1.810.147