CRP and bacterial arthritis: The serum CRP level (20.60 ± 5.70 versus 9.50 ± 6.09, P < 0.001) and synovial fluid neutrophil count (142,778 ± 116,744 vs. 48,351 ± 34,370, P = 0.024) were both higher in patients with septic arthritis (Table 2).