Table 1 Demographic characteristics of RA patients at baseline and healthy controls
Characteristics | RA patients (N = 160) | Controls (N = 1476) | P-value |
|---|---|---|---|
Gender f/m (%women) | 107/53 (67%) | 761/715 (52%) | P < 0.001 |
Age in years | 53(42 to 63) | 38 (29 to 46) | P < 0.001 |
Current smokers (%) | 57 (36%) | 482 (33%) | P = 0.42 |
Disease duration (months) | 3.5 (2.7 to 5.0) | - | - |
IgM-rheumatoid factor positive (%) | 103 (65%) | - | - |
Anti-CCP positive (%) | 93 (58%) | - | - |
Any SE present (%) | 116 (73%) | - | - |