Table 3

Univariate and multivariate analysis of demographic factors and baseline characteristics on mortality

Univariate modelMultivariate model
Variables at entryHazard ratio (95% CI)p ValueHazard ratio (95% CI)p Value
Sex (male)2.49 (1.12 to 5.57) 0.0262.33 (1.03 to 5.27) 0.043
Age (years)1.13 (1.08 to 1.17)<0.0011.15 (1.09 to 1.21)<0.001
Duration of symptoms (months)0.93 (0.81 to 1.07) 0.330.98 (0.84 to 1.15) 0.82
Rheumatoid factor present2.79 (0.83 to 9.44) 0.0992.31 (0.70 to 7.65) 0.17
ESR per 10 mm/h1.26 (1.14 to 1.39)<0.0011.00 (0.86 to 1.16) 0.97
Swollen joint count1.08 (1.02 to 1.14) 0.0041.08 (1.00 to 1.17) 0.050
Erosions present1.12 (0.49 to 2.54) 0.800.64 (0.27 to 1.54) 0.32
HAQ3.45 (1.83 to 6.48)<0.0010.66 (0.29 to 1.51) 0.33