Table 1.
Clinical characteristics of control and RA patients
|
Control individuals
|
RA patients
|
p-
value |
|||||
|---|---|---|---|---|---|---|---|
| Mean (SD) | 95% CI | IQR | Mean (SD) | 95% CI | IQR | ||
| Age (years) | 31.42 (5.43) | 29.63-33.21 | 26.75-35.25 | 31.47 (5.72) | 29.59-33.35 | 26.75-36 | 0.96 |
| Weight (Kg) | NA | NA | 70.15 (17.07) | 63.88-76.41 | 55.00-83 | NA | |
| Time from diagnosis (years) | NA | NA | NA | 5.0 (4.0) | 3.707-6.398 | 2.2-5 | NA |
| Time to the initiation of treatment (years) |
NA | NA | NA | 4.7 (4.0) | 3.378-6.043 | 2-5 | NA |
| Rheumatoid factor (UI/ml) | NA | NA | NA | 197.43 (105.9) | 162.6-232.3 | 192.5-200 | NA |
| Anti-citrullinated protein antibody (UI/ml) |
NA | NA | NA | 139.23 (139.85) | 93.27-185.2 | 29.6-198.5 | NA |
| Erythrocyte sedimentation rate (mm/hr) |
NA | NA | NA | 30.0 (22.31) | 22.75-37.41 | 18.25-36 | NA |
| C-reactive protein (mg/l) | NA | NA | NA | 2.0 (2.9) | 1.020-2.984 | 0.6-2.11 | NA |
Values expressed as mean (SD). SD= Standard deviation, IQR= Inter-Quartile Range. RA: rheumatoid arthritis.