Causes of markedly elevated CRP levels: N = 839 patients.
| DIAGNOSIS | PATIENTS, N (%) |
|---|---|
| Infection | 462 (55.1) |
| Inflammatory | 45 (5.4) |
| Rheumatologic | 63 (7.5) |
| Malignancy | 43 (5.1) |
| Drug reaction | 14 (1.7) |
| Multiple* | 47 (5.6) |
| Uncertain | 148 (17.6) |
| Other | 17 (2.0) |
CRP—C-reactive protein.
↵* Of the 47 patients who had multiple diagnoses, 46 also had infection.