The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage

Abstract Background Emergency department (ED) crowding has been repeatedly shown to affect patient outcomes negatively. However, there is limited research on its impact on patients immediately discharged by the triage team. This study aimed to evaluate the effect of ED occupancy level on the rates o...

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Main Authors: Jari Ylä-Mattila, Anna Eidstø, Jalmari Nevanlinna, Heini Huhtala, Teemu Koivistoinen, Sami Mustajoki
Format: Article
Language:English
Published: BMC 2025-08-01
Series:BMC Emergency Medicine
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Online Access:https://doi.org/10.1186/s12873-025-01315-8
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author Jari Ylä-Mattila
Anna Eidstø
Jalmari Nevanlinna
Heini Huhtala
Teemu Koivistoinen
Sami Mustajoki
author_facet Jari Ylä-Mattila
Anna Eidstø
Jalmari Nevanlinna
Heini Huhtala
Teemu Koivistoinen
Sami Mustajoki
author_sort Jari Ylä-Mattila
collection DOAJ
description Abstract Background Emergency department (ED) crowding has been repeatedly shown to affect patient outcomes negatively. However, there is limited research on its impact on patients immediately discharged by the triage team. This study aimed to evaluate the effect of ED occupancy level on the rates of ED revisitation and hospitalization within seven days among patients discharged or redirected by the triage team. Methods An observational single-center study was conducted at the Tampere University Hospital ED from January 1, 2023, to December 31, 2024. The study population consisted of patients who were discharged or redirected by the ED triage team. These patients were divided into two groups: (1) patients who revisited the ED within seven days and (2) patients who did not return within seven days. A subgroup analysis focused on revisits that resulted in hospitalization. ED occupancy at the time of triage was considered as a predicting factor for revisitation and hospitalization. Age, sex, triage shift, and the updated Charlson Comorbidity Index (uCCI) were adjusted for in a multivariable logistic regression analysis. Results Of the 180,267 ED visitors during the study period, 8.8% (n = 15,910) were discharged by the triage team. Of these, 8.7% (n = 1392) revisited the ED within seven days, and 16.2% (n = 225) of the revisiting patients were hospitalized. In the multivariable analyses, the highest quartile of ED occupancy was associated with an increased likelihood of ED revisitation (odds ratio [OR]: 1.29, 95% confidence interval [CI]: 1.06–1.57). Older age was linked to both revisitation and hospitalization (OR for a 1-year increase 1.01 [95% CI: 1.01–1.02] and 1.02 [95% CI: 1.02–1.03], respectively). The uCCI score was also associated with revisitation and hospitalization (OR for a 1-point increase 1.13 [95% CI: 1.07–1.18] and 1.23 [95% CI: 1.13–1.33], respectively). Conclusions The highest ED occupancy quartile was associated with a modestly increased likelihood of an ED revisit but not hospitalization within seven days after being discharged by the triage team. Furthermore, age and comorbidities were associated with both revisitation and hospitalization. Trial registration Clinical trial number: not applicable.
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spelling doaj-art-d39d9e2a286d424db90c7c63145d8ee22025-08-20T04:01:53ZengBMCBMC Emergency Medicine1471-227X2025-08-012511810.1186/s12873-025-01315-8The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triageJari Ylä-Mattila0Anna Eidstø1Jalmari Nevanlinna2Heini Huhtala3Teemu Koivistoinen4Sami Mustajoki5Emergency Department, Tampere University HospitalEmergency Department, Tampere University HospitalFaculty of Medicine and Health Technology, Tampere UniversityFaculty of Social Sciences, Tampere UniversityFaculty of Medicine and Health Technology, Tampere UniversityEmergency Department, Tampere University HospitalAbstract Background Emergency department (ED) crowding has been repeatedly shown to affect patient outcomes negatively. However, there is limited research on its impact on patients immediately discharged by the triage team. This study aimed to evaluate the effect of ED occupancy level on the rates of ED revisitation and hospitalization within seven days among patients discharged or redirected by the triage team. Methods An observational single-center study was conducted at the Tampere University Hospital ED from January 1, 2023, to December 31, 2024. The study population consisted of patients who were discharged or redirected by the ED triage team. These patients were divided into two groups: (1) patients who revisited the ED within seven days and (2) patients who did not return within seven days. A subgroup analysis focused on revisits that resulted in hospitalization. ED occupancy at the time of triage was considered as a predicting factor for revisitation and hospitalization. Age, sex, triage shift, and the updated Charlson Comorbidity Index (uCCI) were adjusted for in a multivariable logistic regression analysis. Results Of the 180,267 ED visitors during the study period, 8.8% (n = 15,910) were discharged by the triage team. Of these, 8.7% (n = 1392) revisited the ED within seven days, and 16.2% (n = 225) of the revisiting patients were hospitalized. In the multivariable analyses, the highest quartile of ED occupancy was associated with an increased likelihood of ED revisitation (odds ratio [OR]: 1.29, 95% confidence interval [CI]: 1.06–1.57). Older age was linked to both revisitation and hospitalization (OR for a 1-year increase 1.01 [95% CI: 1.01–1.02] and 1.02 [95% CI: 1.02–1.03], respectively). The uCCI score was also associated with revisitation and hospitalization (OR for a 1-point increase 1.13 [95% CI: 1.07–1.18] and 1.23 [95% CI: 1.13–1.33], respectively). Conclusions The highest ED occupancy quartile was associated with a modestly increased likelihood of an ED revisit but not hospitalization within seven days after being discharged by the triage team. Furthermore, age and comorbidities were associated with both revisitation and hospitalization. Trial registration Clinical trial number: not applicable.https://doi.org/10.1186/s12873-025-01315-8CrowdingDischargeEmergency departmentOccupancyLow acuityNonurgent
spellingShingle Jari Ylä-Mattila
Anna Eidstø
Jalmari Nevanlinna
Heini Huhtala
Teemu Koivistoinen
Sami Mustajoki
The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
BMC Emergency Medicine
Crowding
Discharge
Emergency department
Occupancy
Low acuity
Nonurgent
title The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
title_full The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
title_fullStr The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
title_full_unstemmed The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
title_short The effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
title_sort effect of emergency department occupancy on the revisitation rate within seven days among patients discharged by triage
topic Crowding
Discharge
Emergency department
Occupancy
Low acuity
Nonurgent
url https://doi.org/10.1186/s12873-025-01315-8
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