| Variables | Cases No (%) | Controls No (%) | Total | P Value | |
| C-RP | Positive | 23 (32.9%) | 9 (12.9%) | 32 (22.9%) | 0.005* |
| Negative | 47 (67.1%) | 61 (87.1%) | 108 (77.1%) | ||
| Total | 70 (100%) | 70 (100%) | 140 (100%) | ||