Table 2.
Distribution of rheumatoid factor (RF) and anti-cyclic citrullinated protein (Anti-CCP) antibodies in rheumatoid arthritis (RA) versus healthy controls
| RA patients n=52 | Healthy controls n=47 | ||||
|---|---|---|---|---|---|
|
| |||||
| Antibody | Negative N(%) | Positive N(%) | Negative N(%) | Positive N(%) | |
| High-positive >3 times ULN | Low-positive≤ 3 times ULN | ||||
| RF | 7(13.46) | 26(50) | 19(36.53) | 45(95.74) | 2(4.25) |
| Anti-CCP | 3(5.76) | 45(86.53) * | 4(7.69) | 46(97.87) | 1(2.12) |
ULN=Upper Limits of Normal;
*
Statistically significant, Pearson’s Chi-square test: Χ 2 =67.35, P<0.001, 95% confidence interval (CI)=74.25–94.55