• Ian G Stiell, Scott Odorizzi, Jeffrey J Perry, Debra A Eagles, Krishan Yadav, and Ottawa Hospital Weekend Discharge Group.
• Department of Emergency Medicine, University of Ottawa, Ottawa, ON, Canada. istiell@ohri.ca.
• CJEM. 2024 Sep 1; 26 (9): 628632628-632.

BackgroundWe believe that hospital and emergency department (ED) crowding is exacerbated on Mondays because fewer in-patients are discharged on the weekend. In part 1 of 3 concurrent studies, we documented the number of weekend discharges and the extent of hospital and ED crowding on the days following weekends.MethodsWe conducted a data analysis study at The Ottawa Hospital, a major academic health sciences center with two EDs. We created reports of the 18-month period (January 1, 2022-June 30, 2023) regarding the status of in-patients at the two campuses. We compared the total admissions, discharges, and hospital occupancy on weekends (or long weekends), the Monday following weekends (or Tuesday following long weekends), or Tuesdays-Fridays. For these three time periods, we also compared the proportion of ED beds occupied by admitted patients to all ED beds, as well as the proportion of days with > 70% admitted patients housed in the ED at 8:00am.ResultsOur data for 55,692 patients demonstrated that on weekends compared to weekdays, there were almost 50% fewer discharges with the ratio of admissions to discharges averaging 1.16 (95% CI 1.10-1.22). This was accompanied by a 2.4% absolute increase (P < 0.001) in hospital occupancy on Mondays or Tuesdays, often exceeding 100%. Both EDs are particularly crowded on these Mondays and Tuesdays with the proportion of admitted patients to regular ED beds averaging 68%. We observed serious crowding with > 70% occupancy with admitted patients on almost 50% of Mondays.InterpretationWe have demonstrated that there are much fewer discharges on weekends, and this is associated with significant hospital and ED crowding on Mondays. This blocks safe and timely access to beds for newly arriving patients in the ED. These results should spur Canadian hospitals to evaluate their own data and seek solutions to this important problem.© 2024. The Author(s), under exclusive licence to the Canadian Association of Emergency Physicians (CAEP)/ Association Canadienne de Médecine d'Urgence (ACMU).

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