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. 2016 May 4;6(5):e010815. doi: 10.1136/bmjopen-2015-010815

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Influence of CT utilisation on (A) ED length of stay (hours) and (B) hospital length of stay (day) in different diagnostic groups, adjusting for potential confounding factors, including patient's age, sex, visit characteristics (triage category, time of arrival) and hospital factors (hospital type and treating physician), by multivariable linear regression. ED, emergency department; ICU, intensive care unit.