Variable | All (231) | GBS group (87) | Other bacterial group (144) | p-value |
---|---|---|---|---|
WBC in synovial fluid (cells/cu.mm.): Median (IQR25-IQR75) | 53,000.0 (25,200.0-110,720.0) | 54,000.0 (25,600.0-131,000.0) | 52,800.0 (24,030.0-106,000.0) | 0.640 |
Hb (mg/dL): Mean ± SD | 11.0 + 2.2 | 11.7 + 2.4 | 10.5 + 2.1 | < 0.001 |
Serum WBC (cells/cu.mm.): Median (IQR25-IQR75) | 13,400.0 (9500.0-18,800.0) | 15,000.0 (10,700.0-19,900.0) | 12,500.0 (8550.0-16,950.0) | 0.029 |
BUN (mg/dL): Median (IQR25-IQR75) | 21.8 (13.8–39.6) | 18.4 (12.9–35.1) | 24.4 (14.5–43.6) | 0.040 |
Cr (mg/dL): Median (IQR25-IQR75) | 1.0 (0.8–2.2) | 0.90 (0.8–1.5) | 1.20 (0.8–2.5) | 0.033 |
AST (IU/L): Median (IQR25-IQR75) | 39.0 (26.5–69.8) | 37.0 (25.0–59.0) | 42.0 (27.0–71.0) | 0.182 |
ALT (IU/L): Median (IQR25-IQR75) | 33.5 (20.0–55.5) | 35.0 (24.0–59.0) | 32.0 (17.0–54.0) | 0.175 |
ESR (min/hr): Median (IQR25-IQR75) | 109.0 (86.0–119.0) | 104.5 (85.0–118.0) | 111.0 (86.0–119.0) | 0.558 |
hs-CRP (mg/L): Median (IQR25-IQR75) | 185.2 (100.8–300.0) | 226.9 (142.2–300.0) | 157.0 (85.3–267.9) | 0.030 |
Positive hemoculture (n, %) | 157, 68% | 62, 71.3% | 95, 66.0% | 0.404 |
Positive synovial fluid culture (n, %) | 155, 67.1% | 55, 63.2% | 100, 69.4% | 0.329 |