Outcomes (COVID-19 analysis)
SECONDARY
There were a total of 204 filters from 47 patient-sessions with COVID-19, 370 filters from 108 patient-sessions who tested negative for COVID-19, and 17 filters from 6 patient-sessions not tested. After removing filters from untested patients, median and interquartile values in this secondary analysis were 22.7 (10.3–56.8) hours and 24.5 (12.0–47.5) hours, respectively, for COVID-19 and non-COVID-19 filters (p = 0.78). In-hospital mortality rates were 76.6% (36 out of 47) for COVID-19 patients, and 57.4% (62 out of 108) for non-COVID-19 patients (p = 0.02).