system, time to score of <2 maintained for 24 hr in NEWS2 scoring system, mean change in NEWS2 scoring system, number of days with fever, number of patients alive off oxygen, number of days of resting respiratory rate >24 breaths/min, number of days with hypoxemia, number of days of supplemental oxygen use, time to saturation ≥94% on room air, number of ventilator free days in the first 28 days, number of patients requiring ini