Table 4.
Variable | Diagnosed with infection, n = 6 | No infection, n = 726 | p a |
---|---|---|---|
Age (years) | 42 (13–50) | 33 (19–52) | 0.82 |
Male gender | 3 (50%) | 450 (62%) | 0.68 |
Lowest haemoglobinb (g/L) | 134 (124–144) | 137 (126–147) | 0.60 |
Highest white cell count (×109/L)b | 11.2 (9.2–20.2) | 8.3 (6.9–9.9) | 0.009 |
Highest neutrophil count (×109/L)b | 8.3 (5.0–17.8) | 4.6 (3.6–6.0) | 0.008 |
Lowest platelets (×109/L)b | 243 (189–339) | 228 (196–265) | 0.52 |
Highest aPTT (seconds)b | 34 (28–38) | 30 (27–33) | 0.24 |
Lowest fibrinogen (g/L)b | 2.8 (2.3–3.3) | 2.5 (2.1–3.0) | 0.57 |
Highest INRb | 1.1 (1.1–1.2) | 1.1 (1.0–1.1) | 0.23 |
Highest creatinine kinase (units/L)b | 483 (154–1768) | 153 (106–240) | 0.02 |
Highest creatinine (µmol/L)b | 68 (47–98) | 73 (60–87) | 0.73 |
Highest CRP (mg/L)b c | 34 | 1.0 (1.0–9.7) | 0.08 |
Erythemab | 3 (50%) | 25 (3%) | 0.001 |
Pusb | 0 | 0 | — |
Blisteringb | 0 | 1 (0.1%) | 1.0 |
Antivenom administered | 3 (50%) | 26 (4%) | 0.001 |
Taipan bite | 3 (50%) | 15 (2%) | <0.0001 |
Brown snakebite | 0 | 4 (0.6%) | 1.0 |
Black snakebite | 0 | 3 (0.4%) | 1.0 |
Tiger bite | 0 | 3 (0.4%) | 1.0 |
Death adder bite | 0 | 1 (0.1%) | 1.0 |
Bite on limbs | 6 (100%) | 711 (98%) | 1.0 |
All numbers represent absolute number (%) or median (interquartile range). aPTT: activated partial thromboplastin clotting time; INR: international normalised ratio; CRP: C-reactive protein. aUnadjusted analysis presented. bIn the first 24 hours of hospitalisation. cOnly 1 patient who was diagnosed with infection had a C-reactive protein measured in the first 24 hour.