• Nicholas Quigley, Alexandra Binnie, Nadia Baig, Dawn Opgenorth, Janek Senaratne, Wendy I Sligl, Danny J Zuege, Oleksa Rewa, Sean M Bagshaw, Jennifer Tsang, and Vincent I Lau.
• Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta and Alberta Health Services, Edmonton, AB, Canada. quigley1@ualberta.ca.
• Can J Anaesth. 2024 Mar 1; 71 (3): 390399390-399.

PurposeCritical care research in Canada is conducted primarily in academically affiliated intensive care units (ICUs) with established research infrastructure. Efforts are made to engage community hospital ICUs in research, although the impacts of their inclusion in clinical research have never been explicitly quantified. We therefore sought to determine the number of additional eligible patients that could be recruited into critical care trials and the change in time to study completion if community ICUs were included in clinical research.MethodsWe conducted a decision tree analysis using 2018 Alberta Health Services data. Patient demographics and clinical characteristics for all ICU patients were compared against eligibility criteria from ten landmark, randomized, multicentre critical care trials. Individual patients from academic and community ICUs were assessed for eligibility in each of the ten studies, and decision tree analysis models were built based on prior inclusion and exclusion criteria from those trials.ResultsThe number of potentially eligible patients for the ten trials ranged from 2,082 to 10,157. Potentially eligible participants from community ICUs accounted for 40.0% of total potentially eligible participants. The recruitment of community ICU patients in trials would have increased potential enrolment by an average of 64.0%. The inclusion of community ICU patients was predicted to decrease time to trial completion by a mean of 14 months (43% reduction).ConclusionInclusion of community ICU patients in critical care research trials has the potential to substantially increase enrolment and decrease time to trial completion.© 2023. Canadian Anesthesiologists' Society.

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