Patient- and practice-related determinants of emergency department length of stay for patients with psychiatric illness

Annals of Emergency Medicine
Anthony P WeissE John Orav

Abstract

To identify patient and clinical management factors related to emergency department (ED) length of stay for psychiatric patients. This was a prospective study of 1,092 adults treated at one of 5 EDs between June 2008 and May 2009. Regression analyses were used to identify factors associated with ED length of stay and its 4 subcomponents. Secondary analyses considered patients discharged to home and those who were admitted or transferred separately. The overall mean ED length of stay was 11.5 hours (median 8.2 hours). ED length of stay varied by discharge disposition, with patients discharged to home staying 8.6 hours (95% confidence interval 7.7 to 9.5 hours) and patients transferred to a hospital outside the system of care staying 15 hours (95% confidence interval 12.7 to 17.6 hours) on average. Older age and being uninsured were associated with increased ED length of stay, whereas race, sex, and homelessness had no association. Patients with a positive toxicology screen result for alcohol stayed an average of 6.2 hours longer than patients without toxicology screens, an effect observed primarily in the periods before disposition decision. Diagnostic imaging was associated with an average 3.2-hour greater length of stay, prolo...Continue Reading

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