Official websites use. Share sensitive information only on official, secure websites. Correspondence: Yohan N'Guyen yohan. Emergency rooms ER or Hospitals overcrowding is associated with increased mortality [ 1 ].
ER overcrowding has been studied in France [ 9 , 10 , 11 ], where the the efficiency of the universalist healthcare system has been criticized [ 12 ]. But, few data on the impact of the aforementioned interventions are available [ 13 , 14 ].
The target patients of UPUM should i be aged less than 75 years, ii come from the ER and iii have a presumed LOS lower than 5β7 days, regardless of the reason for admission.
During the first and the third parts of the study period 6 November β9 December and 13 January β14 February , some of the admissions were made by a senior consultant external admitter: Y. All the patients hospitalised in UPUM during the study period were enroled. Letters informing that data would be collected from medical records for research purpose were sent to the patients who were still alive, on 12 March , in accordance with French legislation.
Three patients refused the collection of data from their medical records. Among previously deceased patients, none had previously objected to the further use of their medical data during their hospitalisation before they died. Thus, the data age, point of origin, LOS, and outcome [discharge, transfer to another medical or surgical acute care unit or death] from patients were secondarily extracted from medical records on 12 April and data confidentiality were preserved throughout this internal study Reims University Hospital GDPR register number MR , in accordance with the principles of the Declaration of Helsinki.
