Research Article

Early Prediction of Sepsis Based on Machine Learning Algorithm

Table 1

Examples of variables in different types and the corresponding percentage of missing values.

Vital signsUnitMissing percentage

HR (heart rate)Beats per minute7.7%
O2Sat (pulse oximetry)%12.0%
Temp (temperature)Deg C66.2%
SBP (systolic BP)Mm·Hg15.2%

Laboratory variablesUnitMissing percentage
BaseExcess (measure of excess bicarbonate)mmol/L89.6%
HCO3 (bicarbonate)mmol/L91.9%
FiO2 (fraction of inspired oxygen) pH%85.8%
pH/88.5%

DemographicsUnitMissing percentage
Ageyears0.0%
GenderFemale (0) or male (1)0.0%
Unit1 (MICU)No(0) or yes(1)48.9%