Table 5.

Feature importance of the extreme gradient boosting model. We present the results of our Shapley additive explanations (SHAP) analysis for the extreme gradient boosting model for the deterioration within each of our proposed time windows. We provide the mean of the absolute SHAP value for each of the 7 input features.

Vital sign	Mean of absolute SHAP value
	36 hours	24 hours	12 hours	6 hours
Temperature	0.019	0.018	0.018	0.018
Respiratory rate	0.016	0.015	0.015	0.012
Systolic blood pressure	0.013	0.013	0.013	0.011
Heart rate	0.011	0.010	0.010	0.008
Level of consciousness	0.003	0.003	0.003	0.002
Oxygen saturation	0.003	0.003	0.003	0.002
Supplementary oxygen	0.000	0.000	0.000	0.000