Evidence map›Paper›PMID 32273319›Full record

ArticleBMJ open2020

Comparison between urban and rural mortality in patients with acute myocardial infarction: a nationwide longitudinal cohort study in South Korea.

Hye Sim Kim, Dae Ryong Kang, Inah Kim, Kyungsuk Lee, Hoon Jo, Sang Baek Koh

Abstract readComparative Study
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Trial
  2. Long-term adherence to gastric cancer screening in South Korea: A 10-year follow-up study.Chinese journal of cancer research = Chung-kuo yen cheng yen chiu · 2025
    Article
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  5. Association between chemotherapy and the risk of developing breast cancer-related lymphedema: a nationwide retrospective cohort study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
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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

6 authors.

Hye Sim KimCenter of Biomedical Data Science, Yonsei University Wonju College of Medicine, Wonju, South Korea.ORCID 0000-0002-7431-9722
Dae Ryong KangDepartment of Precision Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea.
Inah KimDepartment of Occupational and Environmental Medicine, Hanyang University College of Medicine, Seongdong-gu, South Korea.ORCID 0000-0001-9221-5831
Kyungsuk LeeNational Institute of Agricultural Science, Rural Development Administration, Jeonju, South Korea.
Hoon JoDepartment of Preventive Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea.
Sang Baek KohDepartment of Preventive Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea kohhj@yonsei.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study investigated the risk associated with interhospital transfer of patients with acute myocardial infarction (AMI) and clinical outcomes according to the location of the patient' residence.

designA nationwide longitudinal cohort.

settingNational Health Insurance Service database of South Korea.

participantsThis study included 69 899 patients with AMI who visited an emergency centre from 2013 to 2015, as per the Korea National Health Insurance Service database. PRIMARY OUTCOME MEASURE: The clinical outcome of a patient with AMI was defined as mortality within 7 days, 30 days and 1 year.

resultsClinical outcomes were analysed and compared with respect to the location of the patient's residence and occurrence of interhospital transfer. We concluded that the HR of mortality within 7 days was 1.49 times higher (95% CI 1.18 to 1.87) in rural patients than in urban patients not subjected to interhospital transfer and 1.90 times higher (95% CI 1.13 to 3.19) in transferred rural patients than in non-transferred urban patients.

conclusionsTo reduce health inequality in rural areas, a healthcare policy considering regional characteristics, rather than a central government-led, catch-all approach to healthcare policy, must be formulated. Additionally, a local medical emergency delivery system, based on allocation of roles between different medical facilities in the region, must be established.

Indexed as

AgedAged, 80 and overAge FactorsCohort StudiesEmergency Service, HospitalFemaleHealthcare DisparitiesHealth PolicyHumansLongitudinal StudiesMaleMiddle AgedMortalityMyocardial InfarctionNational Health ProgramsOdds Ratiohealth policymyocardial infarctionpublic health

Identifiers

PMID32273319
PMCPMC7245421

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.