TABLE 4

Multiple logistic regression model of risk factors for infection

VariableOR95% CIP value
Colonized4.012.08–7.73<0.001
Fluid and electrolyte disordera2.371.22–4.590.011
Neurologic disordera3.311.28–8.540.013
Prior admit (28 days)2.161.04–4.480.038
Baseline platelet count/100 units (×103/µl)b0.730.53–1.010.058
  • a As defined by the Elixhauser index (35).

  • b For every 100-unit increase in baseline platelet count, the odds of infection was 0.73-fold lower.