Evidence map›Paper›PMID 30538439›Full record

ArticleInternational journal of chronic obstructive pulmonary disease

Impact of COPD on prognosis of lung cancer: from a perspective on disease heterogeneity.

Wei Wang, Shuang Dou, Wenyan Dong, Mengshuang Xie, Liwei Cui, Chunyan Zheng, Wei Xiao

Open access · goldAbstract readComparative Study
In one paragraph

Article in International journal of chronic obstructive pulmonary disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 8% 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

43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. Pooled it
  2. Lung Cancer Risk in US Adults with COPD: A Systematic Review and Meta-Analysis.International journal of chronic obstructive pulmonary disease · 2025
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  8. The Multifaceted Roles of Neutrophil Death in COPD and Lung Cancer.Journal of respiratory biology and translational medicine · 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

7 authors at 2 institutions in 1 country.

Wei WangDepartment of Pulmonary Medicine, Qilu Hospital, Shandong University, Jinan, People's Republic of China, xiaowei4226@163.com, chyzhengdoc@163.com.
Shuang DouDepartment of Pulmonary Medicine, Qilu Hospital, Shandong University, Jinan, People's Republic of China, xiaowei4226@163.com, chyzhengdoc@163.com.
Wenyan DongDepartment of Geriatric Medicine, The Second Hospital of Shandong University, Jinan, People's Republic of China.
Mengshuang XieDepartment of Pulmonary Medicine, Qilu Hospital, Shandong University, Jinan, People's Republic of China, xiaowei4226@163.com, chyzhengdoc@163.com.
Liwei CuiDepartment of Pulmonary Medicine, Qilu Hospital, Shandong University, Jinan, People's Republic of China, xiaowei4226@163.com, chyzhengdoc@163.com.
Chunyan ZhengDepartment of Pulmonary Medicine, Qilu Hospital, Shandong University, Jinan, People's Republic of China, xiaowei4226@163.com, chyzhengdoc@163.com.
Wei XiaoDepartment of Pulmonary Medicine, Qilu Hospital, Shandong University, Jinan, People's Republic of China, xiaowei4226@163.com, chyzhengdoc@163.com.
Qilu Hospital of Shandong University · CNSecond Hospital of Shandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCOPD is an important comorbidity of lung cancer, but the impact of COPD on the outcomes of lung cancer remains uncertain. Because both COPD and lung cancer are heterogeneous diseases, we evaluated the link between COPD phenotypes and the prognosis of different histological subtypes of lung cancer.

methodsIn this retrospective study, subjects with a newly and pathologically confirmed diagnosis of lung cancer were enrolled from patients preparing for lung cancer surgery. All participants underwent pulmonary function test (PFT). The diagnosis of COPD was based on GOLD criteria. Lung cancer subtypes and COPD phenotypes were categorized by WHO classification of lung tumors and computer quantitative analysis of PFT. The HRs were estimated by Cox regression analysis.

resultsAmong 2,222 lung cancer patients, 32.6% coexisted with COPD. After adjustment for age, sex, body mass index (BMI), smoking status, and therapy method, COPD was significantly associated with the decreased overall survival (OS) of lung cancer (HR 1.28, 95% CI 1.05-1.57). With the increased severity of COPD, the OS of lung cancer was gradually worsened (HR 1.23, 95% CI 1.08-1.39). But surgical treatment and high BMI were independent prognostic protective factors (HR 0.46, 95% CI 0.37-0.56; HR 0.96, 95% CI 0.94-0.99). Moreover, in terms of disease heterogeneity, emphysema-predominant phenotype of COPD was an independent prognostic risk factor for squamous carcinoma (HR 2.53, 95% CI 1.49-4.30). No significant relationship between COPD phenotype and lung cancer prognosis was observed among adenocarcinoma, small cell lung cancer, large cell lung cancer, and other subtype patients.

conclusionThese findings suggest that COPD, especially emphysema-predominant phenotype, is an independent prognostic risk factor for squamous carcinoma only.

Indexed as

AgedCarcinoma, Squamous CellComorbidityFemaleHumansLungLung NeoplasmsMaleMiddle AgedPhenotypePrognosisProtective FactorsPulmonary Disease, Chronic ObstructivePulmonary EmphysemaRetrospective StudiesRisk AssessmentCOPDdisease heterogeneityhistologylung cancerprognosis

Identifiers

PMID30538439
PMCPMC6251360
OpenAlexW2901357173

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.