Septic arthritis n = 10 | Second control group (IMPA) n = 9 | Control group (OA) n = 9 | |
---|---|---|---|
Age (months) | 38 (26–90)a | 61 (51–72) | 12 (11–42) |
Weight (kg) | 42 (30–47) | 33 (30–35) | 39 (26–45) |
Blood sample | |||
White blood count (× 109 cells/L) | 12 (6–18) | 16 (11–19) | 9 (6–10) |
CRP (mg/L) | n = 8 72 (39–110) | n = 5 89 (55–97) | Not evaluated |
Synovial fluid | n = 10 | n = 27 | n = 9 |
Leucocytes (× 109 cells/L) | 125 (65–150) | 58 (34–90) | 0 (0–1) |
Neutrophils (%) | 88 (72–93) | 86 (74–89) | 1 (0–3) |
Small monocytes (%) | 1 (0–3) | 2 (1–7) | 2 (1–7) |
Large monocytes (%) | 12 (5–19) | 11 (8–19) | 96 (81–97) |