LAUSR

Key Points Question Can days alive and at home at day 90 (DAAH90)—a composite of mortality and the number of days at home at day 90 after intensive care unit (ICU) admission—be used to capture the burden of acute hospitalization and long-term functional outcomes in patients who require at least 7 days of mechanical ventilation? Findings In this cohort study of 463 patients receiving invasive ventilation across 10 medical or surgical ICUs in Canada, lower DAAH90 was associated with multiple markers of higher ICU intensity and with worse functional outcomes and higher mortality up to 1 year following ICU discharge. Meaning The findings of this study suggest that DAAH90 reflects the burden of critical illness and captures the long-term consequences of critical illness for functional status, quality of life, and survival.