| Cases (n = 52) | Controls (n = 53) | p-value |
RA duration (years) | 2.5 ± 1.1 | 3.0 ± 1.2 | 0.01 |
Age of onset (years) | 1.5 ± 1.7 | 2.8 ± 1.9 | 0.7 |
Morning stiffness | 1.7 ± 2.0 | 3.2 ± 2.0 | 0.3 |
<30 min | 1.3 ± 1.8 | 2.8 ± 1.9 | 0.8 |
≥30 min | 2.5 ± 1.7 | 3.7 ± 1.7 | 0.1 |
Ankylosed joints | 1.7 ± 2.1 | 3.0 ± 1.9 | 0.3 |
Tender joints | 11.3 ± 9.4 | 18.5 ± 9.7 | 0.0006 |
Swollen joints |
|
|
|