Evidence map›Paper›PMID 31456380›Full record

ArticleJournal of Korean medical science2019

Effect of Institutional Case Volume on In-Hospital and Long-Term Mortality in Critically Ill Patients Requiring Mechanical Ventilation for 48 Hours or More.

Hannah Lee, Seongmi Choi, Eun Jin Jang, Juhee Lee, Dalho Kim, Seokha Yoo, Seung Young Oh, Ho Geol Ryu

Abstract read
In one paragraph

Article in Journal of Korean medical science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Article
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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

8 authors.

Hannah Lee *Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-4001-1826
Seongmi Choi *Health Insurance Policy Research Institute, National Health Insurance Service, Wonju, Korea.ORCID https://orcid.org/0000-0002-9774-6276
Eun Jin JangDepartment of Information Statistics, Andong National University, Andong, Korea.ORCID https://orcid.org/0000-0002-9137-9815
Juhee LeeDepartment of Statistics, College of Natural Sciences, Kyungpook National University, Daegu, Korea.ORCID https://orcid.org/0000-0003-2307-6107
Dalho KimDepartment of Statistics, College of Natural Sciences, Kyungpook National University, Daegu, Korea.ORCID https://orcid.org/0000-0001-8658-6679
Seokha YooDepartment of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0003-4679-6027
Seung Young OhDepartment of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0001-8281-2851
Ho Geol RyuDepartment of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea. hogeol@gmail.com.ORCID https://orcid.org/0000-0001-8952-6049

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of this study was to evaluate whether institutional case volume affects clinical outcomes in patients receiving mechanical ventilation for 48 hours or more.

methodsWe conducted a nationwide retrospective cohort study using the database of Korean National Healthcare Insurance Service. Between January 2007 and December 2016, 158,712 adult patients were included at 55 centers in Korea. Centers were categorized according to the average annual number of patients: > 500, 500 to 300, and < 300.

resultsIn-hospital mortality rates in the high-, medium-, and low-volume centers were 32.6%, 35.1%, and 39.2%, respectively. After adjustment, in-hospital mortality was significantly higher in low-volume centers (adjusted odds ratio [OR], 1.332; 95% confidence interval [CI], 1.296-1.368;

conclusionCenters with higher case volume (> 500 patients/year) showed lower in-hospital mortality and long-term mortality, compared to centers with lower case volume (< 300 patients/year) in patients who required mechanical ventilation for 48 hours or more.

Indexed as

Respiration, ArtificialAdolescentAdultAgedCritical IllnessDatabases, FactualFemaleHospital MortalityHumansIntensive Care UnitsKaplan-Meier EstimateLogistic ModelsMaleMiddle AgedOdds RatioRepublic of KoreaCase VolumeMechanical VentilationMortality

Identifiers

PMID31456380
PMCPMC6717239

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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.