Evidence map›Paper›PMID 31610634›Full record

ArticleThe Korean journal of internal medicine2019

Mortality of patients with chronic obstructive pulmonary disease: a nationwide populationbased cohort study.

Seon Cheol Park, Dong Wook Kim, Eun Cheol Park, Cheung Soo Shin, Chin Kook Rhee, Young Ae Kang, Young Sam Kim

Abstract read
In one paragraph

Article in The Korean journal of internal medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

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

  1. Lung Cancer Risk in US Adults with COPD: A Systematic Review and Meta-Analysis.International journal of chronic obstructive pulmonary disease · 2025
    Pooled it
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  6. 3D Membrane Microstructures for Increased Efficiency in Blood-Gas Transfer.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Seon Cheol ParkDivision of Pulmonology, Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
Dong Wook KimDepartment of Policy Research Affairs, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
Eun Cheol ParkDepartment of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea.
Cheung Soo ShinDepartment of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea.
Chin Kook RheeDivision of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
Young Ae KangDivision of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
Young Sam KimDivision of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.

Funding

National Health Insurance Service
6 · The paper itself

Abstract

BACKGROUND/

aimsChronic obstructive pulmonary disease (COPD) is a major cause of mortality in the world. There are no population-based studies on longterm mortality in COPD patients in Korea.

methodsUsing the large, population-based, National Health Insurance Service- National Sample Cohort (NHIS-NSC), we identified COPD patients using the International Classification of Disease-Tenth Revision (ICD-10) and prescription details in the NHIS-NSC during 2003 to 2013. We analyzed the survival curves of COPD patients by sex, age, and cause of death.

resultsA total of 14,127 individuals older than 40 years were diagnosed with COPD. There were a total of 3,695 deaths (26.2%) in COPD patients during the study period. The 5-year mortality of COPD patients was 25.4% (29.9% in males and 19.1% in females). The mortality rate increased rapidly with age. The most common cause of death in COPD was chronic lower respiratory disease.

conclusionThis study described long-term mortality in COPD patients in Korea. Higher mortality was observed in males, and it was closely related to age.

Indexed as

AdultAgedAged, 80 and overAge DistributionCause of DeathDatabases, FactualFemaleHumansMaleMiddle AgedPrognosisPulmonary Disease, Chronic ObstructiveRepublic of KoreaRetrospective StudiesRisk FactorsSex DistributionCause of deathMortalityPulmonary disease, chronic obstructive

Identifiers

PMID31610634
PMCPMC6823577

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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.