| Total patients = 589 | MSU | p | CPPD | p | Apatite | p | Aspecific | p | No crystals | p |
|---|---|---|---|---|---|---|---|---|---|---|
| (M = 298, F = 291) | (105 patients, 17.8%) | (40 patients, 6.8%) | (2 patients, 0.3%) | (195 patients, 33.1%) | (247 patients, 42.0%) | p | ||||
| leukocyte count <2000 cells/μl | 63 (60%) | 0.02 | 25 (62.5%) | 0.32 | 2 (100%) | 0.006 | 135 (69.2%) | 0.02 | 184 (74.5%) | 0.02 |
| leukocyte count 2000–5000 cells/μl | 17 (16.2%) | 0.38 | 4 (10%) | 0.68 | / | / | 30 (15.4%) | 0.17 | 29 (11.7%) | 0.26 |
| leukocyte count 5000–50000 cells/μl | 23 (21.9%) | 0.03 | 9 (22.5%) | 0.17 | / | / | 25 (12.8%) | 0.27 | 32 (12.9%) | 0.21 |
| leukocyte count >50000 cells/μl | 2 (1.9%) | 0.97 | 2 (5%) | 0.13 | / | / | 5 (2.6%) | 0.19 | 2 (0.8%) | 0.1 |