Table 1. Mean age, C-reactive protein, and erythrocyte sedimentation rate values (± standard deviation) among the different disease groups.
| Septic arthritis | Osteomyelitis | Acute rheumatic fever | More than one | P | |
|---|---|---|---|---|---|
| N | 34 | 84 | 30 | 9 | |
| Age | 6.3±4.7 | 8.2±4.6 | 1.6±2.7 | 8.8±5.4 | 0.0001 |
| CRP (mg/dL) | 11.4±9.3 | 8.1±7.7 | 9.4±7.3 | 7.6±5.9 | NS |
| ESR (mm/hr) | 73.3±31.0 | 62.6±29.9 | 90.2±31.7 | 84.6±20.0 | 0.0002 |
| Sensitivity | |||||
| Mild CRP | 100% | 96% | 97% | 100% | |
| Mild ESR | 94% | 89% | 93% | 100% | |
| Mod CRP | 74% | 58% | 70% | 67% | |
| Mod ESR | 76% | 67% | 90% | 100% | |
| Severe CRP | 41% | 29% | 43% | 44% | |
| Severe ESR | 32% | 18% | 63% | 44% |