Table 1.
Diagnostic categories of synovial fluids: number of samples, WBC counts, and number of available cell counts.
| Diagnostic Category | No. of Patients | Inflammatory Samples, % | Average WBC/mm3 (range) | No. of Cell Counts Available** |
|---|---|---|---|---|
| Rheumatoid Arthritis | 48 | 94.3 | 22,723 (70–210,000) | 41 |
| Gout | 25 | 84.2 | 22,040 (25–11,950) | 19 |
| Osteoarthritis | 24 | 65.2 | 2,657 (92–21,225) | 23 |
| Pseudogout | 4 | 100.0 | 17,323 (3,470–27,000) | 4 |
| Reiters | 9 | 88.0 | 18,875 (500–70,000) | 8 |
| Psoriatic Arthritis | 3 | 100.0 | −(19,500) | 1 |
| Infectious Arthropathy | 9 | 100.0 | 21,833 (4,250–65,000) | 8 |
| Joint Trauma | 4 | 25.0 | 45,390 (245–134,000) | 4 |
| Systemic Lupus Erythematosus | 5 | 50.0 | 15,570 (37–48,500) | 4 |
| Juvenile Arthritis | 2 | 50.0 | −(238–11,575) | 2 |
| Other/No Confirmed Diagnosis | 11 | 100.0 | 5,907 (500–8,475) | 8 |
| Total | 144 | 122 |
*
Inflammatory SF have > 2000 WBC/mm3.
**
Number of samples for each disease with reported WBC counts.