Table 4.

Relative feature importance of the highest performing random forest model (OMOP + NLP binary). OMOP and NLP features are colored in salmon and yellow respectively.

relative importance	description
0.054	Narcan
0.038	Endotracheal tube
0.025	Acute respiratory failure
0.023	Ventilator - respiratory equipment
0.021	Continuous invasive mechanical ventilation for less than 96 consecutive hours
0.016	Accidental poisoning by heroin
0.015	Radiologic examination, chest; single view, frontal
0.014	Intubation
0.013	Critical care, evaluation and management of the critically ill or critically injured patient; first 30–74 minutes
0.012	Respiratory failure