Evidence map›Paper›PMID 36411433›Full record

ArticleBMC emergency medicine2022

Patient and hospital characteristics predict prolonged emergency department length of stay and in-hospital mortality: a nationwide analysis in Korea.

Kyung-Shin Lee, Hye Sook Min, Jae Young Moon, Daesung Lim, Younghwan Kim, Eunsil Ko, You Sun Kim, Joohae Kim, Jeehye Lee, Ho Kyung Sung

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In one paragraph

Article in BMC emergency medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  4. Emergency Department length of stay: a mixed-methods study in four Ethiopian public hospitals.African journal of emergency medicine : Revue africaine de la medecine d'urgence · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Kyung-Shin LeePublic Health Research Institute, National Medical Center, 245 Eulgi-Ro, Jung-Gu, Seoul, 04564, Korea.
Hye Sook MinPublic Health Research Institute, National Medical Center, 245 Eulgi-Ro, Jung-Gu, Seoul, 04564, Korea.
Jae Young MoonDepartment of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
Daesung LimDepartment of Emergency Medicine, Seoul Medical Center, Seoul, Korea.
Younghwan KimDepartment of Trauma Surgery, National Medical Center, Seoul, Korea.
Eunsil KoNational Emergency Medical Center, National Medical Center, Seoul, Korea.
You Sun KimDepartment of Pediatrics, National Medical Center, Seoul, Korea.
Joohae KimDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, National Medical Center, Seoul, Korea.
Jeehye LeeNational Emergency Medical Center, National Medical Center, Seoul, Korea.
Ho Kyung SungPublic Health Research Institute, National Medical Center, 245 Eulgi-Ro, Jung-Gu, Seoul, 04564, Korea. hokyungsung@nmc.or.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundProlonged emergency department length of stay (EDLOS) in critically ill patients leads to increased mortality. This nationwide study investigated patient and hospital characteristics associated with prolonged EDLOS and in-hospital mortality in adult patients admitted from the emergency department (ED) to the intensive care unit (ICU).

methodsWe conducted a retrospective cohort study using data from the National Emergency Department Information System. Prolonged EDLOS was defined as an EDLOS of ≥ 6 h. We constructed multivariate logistic regression models of patient and hospital variables as predictors of prolonged EDLOS and in-hospital mortality.

resultsBetween 2016 and 2019, 657,622 adult patients were admitted to the ICU from the ED, representing 2.4% of all ED presentations. The median EDLOS of the overall study population was 3.3 h (interquartile range, 1.9-6.1 h) and 25.3% of patients had a prolonged EDLOS. Patient characteristics associated with prolonged EDLOS included night-time ED presentation and Charlson comorbidity index (CCI) score of 1 or higher. Hospital characteristics associated with prolonged EDLOS included a greater number of staffed beds and a higher ED level. Prolonged EDLOS was associated with in-hospital mortality after adjustment for selected confounders (adjusted odds ratio: 1.18, 95% confidence interval: 1.16-1.20). Patient characteristics associated with in-hospital mortality included age ≥ 65 years, transferred-in, artificially ventilated in the ED, assignment of initial triage to more urgency, and CCI score of 1 or higher. Hospital characteristics associated with in-hospital mortality included a lesser number of staffed beds and a lower ED level.

conclusionsIn this nationwide study, 25.3% of adult patients admitted to the ICU from the ED had a prolonged EDLOS, which in turn was significantly associated with an increased in-hospital mortality risk. Hospital characteristics, including the number of staffed beds and the ED level, were associated with prolonged EDLOS and in-hospital mortality.

Indexed as

Emergency Service, HospitalHospitalsAdultAgedHospital MortalityHumansLength of StayRetrospective StudiesCritical careEmergency departmentIn-hospital mortalityIntensive care unitLength of stay

Identifiers

PMID36411433
PMCPMC9677700

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.