Evidence map›Paper›PMID 38555459›Full record

ArticleRespiratory research2024

Longitudinal BMI change and outcomes in Chronic Obstructive Pulmonary Disease: a nationwide population-based cohort study.

Taeyun Kim, Sun Hye Shin, Hyunsoo Kim, Yunjoo Im, Juhee Cho, Danbee Kang, Hye Yun Park

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 3% of its field
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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Observational
  4. Article
  5. The Disproportionate Burden of Cardiovascular Disease in Mild-to-Moderate COPD.International journal of chronic obstructive pulmonary disease · 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

7 authors at 2 institutions in 1 country.

Taeyun Kim *Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Republic of Korea.ORCID https://orcid.org/0000-0001-7786-5051
Sun Hye Shin *Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Seoul, 06351, Republic of Korea.ORCID https://orcid.org/0000-0003-3164-889X
Hyunsoo Kim *Center for Clinical Epidemiology, Samsung Medical Center, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0001-5241-289X
Yunjoo ImDivision of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Seoul, 06351, Republic of Korea.
Juhee ChoCenter for Clinical Epidemiology, Samsung Medical Center, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0001-9081-0266
Danbee Kang *Center for Clinical Epidemiology, Samsung Medical Center, Seoul, Republic of Korea. dbee.kang@skku.edu.ORCID https://orcid.org/0000-0003-0244-7714
Hye Yun Park *Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Seoul, 06351, Republic of Korea. hyeyunpark@skku.edu.ORCID https://orcid.org/0000-0002-5937-9671
Samsung Medical Center · KRKosin University Gospel Hospital · KR

Funding

National Research Foundation of Korea 2021R1A2C2093987
6 · The paper itself

Abstract

backgroundThe association between longitudinal body mass index (BMI) change and clinical outcomes in patients with chronic obstructive pulmonary disease (COPD) has not fully investigated.

methodsThis retrospective cohort study included 116,463 COPD patients aged ≥ 40, with at least two health examinations, one within 2 years before and another within 3 years after COPD diagnosis (January 1, 2014, to December 31, 2019). Associations between BMI percentage change with all-cause mortality, primary endpoint, and initial severe exacerbation were assessed.

resultsBMI decreased > 5% in 14,728 (12.6%), while maintained in 80,689 (69.2%), and increased > 5% in 21,046 (18.1%) after COPD diagnosis. Compared to maintenance group, adjusted hazard ratio (aHR) for all-cause mortality was 1.70 in BMI decrease group (95% CI:1.61, 1.79) and 1.13 in BMI increase group (95% CI:1.07, 1.20). In subgroup analysis, decrease in BMI showed a stronger effect on mortality as baseline BMI was lower, while an increase in BMI was related to an increase in mortality only in obese COPD patients with aHRs of 1.18 (95% CI: 1.03, 1.36). The aHRs for the risk of severe exacerbation (BMI decrease group and increase group vs. maintenance group) were 1.30 (95% CI:1.24, 1.35) and 1.12 (95% CI:1.07, 1.16), respectively.

conclusionsA decrease in BMI was associated with an increased risk of all-cause mortality in a dose-dependent manner in patients with COPD. This was most significant in underweight patients. Regular monitoring for weight loss might be an important component for COPD management.

Indexed as

Pulmonary Disease, Chronic ObstructiveBody Mass IndexCohort StudiesDisease ProgressionHumansRetrospective StudiesBMICOPDExacerbationK-NHISMortality

Identifiers

PMID38555459
PMCPMC10981805
OpenAlexW4393338117

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.