Table 2.
Mean values of diagnostic measures between infected and not infected hips
| Diagnostic measure | Infected | Not Infected | p value |
|---|---|---|---|
| ESR (mm/hr) |
69 ± 30 (6–140) |
46 ± 23 (8–80) |
0.016* |
| CRP (mg/L) |
192 ± 109 (5–395) |
30 ± 20 (5–68.7) |
< 0.0001* |
| Synovial WBC (cells/μL) |
84,954 ± 108,948 (1400–455,322) |
2391 ± 2640 (260–12,680) |
< 0.001* |
| %PMN | 91 ± 7 (64–99) |
63 ± 23 (19–96) |
< 0.0001* |
Values are expressed as mean ± SD with range in parentheses; error inflation was controlled using the stepdown Bonferroni method; * significantly different at the 0.05 level with the stepdown Bonferroni correction method; ESR = erythrocyte sedimentation rate; CRP = C-reactive protein; Synovial WBC = synovial fluid WBC count; %PMN = percentage polymorphonuclear cells.