TABLE 1.

Core Dataset Elements and Collection Dates

Data	Description	Days Collected
Core data I	Inclusion, testing, and location	Day 0
Core data II	Demographics, symptoms, preadmission medications, and history	Day 0
Core data III	Microbiology and host response and miscellaneous tests	Days 0–29
Core data IV	Daily imaging and mechanical ventilation	Days 0–29
Core data V	Daily processes of care and Ventilator-associated Pneumonia bundle	Days 0–29
Core data VI	Daily fluid, vasopressors, and hospital medications	Days 0–29
Core data VII	Outcomes	Discharge or death
Enhanced data 1	Daily vitals, neurologic examination, and labs	Days 0–29, 3- and 6-mo follow-up
Enhanced data 2	Daily Sequential Organ Failure Assessment score and events	Days 0–29
Full data A	Apache II score	Day 1
Full data B	Echocardiogram and electrocardiogram	Days 0–29