Secondary outcomes
The secondary outcomes are:
- Survival to day 28; Survival to day 60; and Survival to hospital
discharge, censored at day 60
- Daily ratio of oxygen saturation by pulse oximetry to the fraction of
inspired oxygen (SpO2/FiO2 ratio, highest and lowest levels)
- Daily change in modified ordinal score from baseline to day 14
- Worsening on the modified ordinal scale (see Table 2) at 3, 7 and 14
days