Table 2

The top 10 risk/protective factors across three models, ranked from most important to least important

Logistic regressionRandom forestGBM
Free calciumWhite blood cellWhite blood cell
GenderBlood urea nitrogenBicarbonate
HaemoglobinPlateletMean blood pressure
AlbuminAlbuminBlood urea nitrogen
PotassiumMean blood pressureAlbumin
HaematocritLactateLactate
LactateBicarbonatePlatelet
BicarbonateHeart rateRespiratory rate
Anion gapAgeSodium
CreatinineFree calciumPotassium
  • GBM, gradient boosting machine.