Physiologic characteristics of interest
Minimum and maximum values for physiologic and laboratory variables of
interest were collected from the EHR for the first 24 hours of the
hospital stay. Physiologic data collected included heart rate,
respiratory rate, systolic blood pressure (SBP), temperature, and oxygen
saturation20. Laboratory data collected included blood
glucose, haematocrit, haemoglobin, blood urea nitrogen (BUN), sodium,
pH, white blood cell (WBC) count, creatinine, platelets, bilirubin, and
lactic acid20. Estimated glomerular filtration rate
(eGFR) was computed using the maximum creatinine value within the
24-hour window21.