Source (extraction method) | Data collected |
---|---|
Trauma registry (automated extraction) | Date of presentation to the emergency department or hospital |
Date of ICU admission | |
Age on day of admission | |
Gender | |
Race and ethnicity | |
Payer status | |
Elixhauser comorbidity index | |
Mechanism of injury | |
Injury Severity Score | |
Electronic health record (automated extraction) | Cigarette smoking status |
Body mass index | |
Covid-19 status | |
Shock Index | |
All validated SpO2 values in ICU | |
Unvalidated SpO2 values (continuous, recorded up to every minute when available) in ICU | |
All PaO2 values in ICU | |
All FiO2 values in ICU | |
All PEEP values in ICU | |
All oxygen volume measurements in ICU | |
Date of discharge from ICU | |
Date of in-hospital death | |
Discharge disposition | |
Electronic health record (manual extraction) | Military status |
Home supplemental oxygen use | |
Discharge GOS | |
Calculated outcomes | Supplemental Oxygen Free Day (SOFD) to day 28 |
Ventilator-free days to day 28 (VFD28) | |
Hospital-free days to day 90 (HFD90) | |
In-hospital mortality to day 90 | |
Time to mortality to day 90 | |
Time to room air (or FiO2=0.21) | |
Frequency of hypoxic episodes | |
Duration of hypoxic episode | |
Frequency of hyperoxic episodes | |
Duration of hyperoxic episodes | |
Total duration of time on normoxia protocol | |
Amount of supplemental oxygen administered (total estimated oxygen volume administered in ICU) | |
Duration of time on normoxia protocol target (time with SpO2 90-96% or receiving no supplemental oxygen while in ICU) | |
Proportion of participants receiving high levels of supplemental oxygen (FiO2 > 0.4 or more than 4LPM for more than 2 h while in ICU; excluding operating room time) | |
Duration of time receiving high levels of supplemental oxygen | |
Duration of time receiving no supplemental oxygen or FiO2 = 0.21 |