Evidence map›Paper›PMID 41338594›Full record

Observational studyBMJ open respiratory research2025

Association of respiratory symptom profiles with future exacerbations and lung function decline in mild-to-moderate COPD.

Huajing Yang, Shiying Fang, Yuqiong Yang, Gengjia Chen, Shanshan Zha, Chengyu Miao, Zizheng Chen, Xueping Li, Zifei Zhou, Wenqiang He and 8 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in BMJ open respiratory research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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.

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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

1 citing paper in PubMed.

  1. Article
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

18 authors.

Huajing YangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.ORCID http://orcid.org/0000-0003-0040-522X
Shiying FangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Yuqiong YangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Gengjia ChenNanshan School, Guangzhou Medical University, Guangzhou, Guangdong, China.
Shanshan ZhaState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Chengyu MiaoState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.ORCID http://orcid.org/0009-0002-3169-5397
Zizheng ChenState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Xueping LiState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Zifei ZhouState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Wenqiang HeState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Youhai YuState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Fangcheng LiuNanshan School, Guangzhou Medical University, Guangzhou, Guangdong, China.
Yuling WuNanshan School, Guangzhou Medical University, Guangzhou, Guangdong, China.
Fengyan WangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.ORCID http://orcid.org/0000-0001-5737-0625
M Bradley DrummondPulmonary and Critical Care Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Nanshan ZhongState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Rongchang ChenState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
Zhenyu LiangState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China 490458234@qq.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prognostic value of respiratory symptom profiles for predicting exacerbation risk and lung function decline remains unclear in mild-to-moderate chronic obstructive pulmonary disease (COPD). RESEARCH QUESTION: Are respiratory symptom profiles associated with both exacerbation risk and lung function decline in mild-to-moderate COPD? STUDY DESIGN AND

methodsThis was a posthoc analysis of data from participants with mild-to-moderate COPD from the SubPopulations and InteRmediate Outcome Measures in COPD Study. Respiratory symptom profiles were identified through latent class analysis. Outcomes included exacerbation rates evaluated by zero-inflated negative binomial regressions, time-to-first exacerbation evaluated by Cox regression and longitudinal forced expiratory volume in 1 second (FEV

resultsAmong the 954 participants with mild-to-moderate COPD, five distinct respiratory symptom profiles were identified. Compared with the 'minimal respiratory' profile, the 'productive cough' profile was associated with a higher rate of any respiratory exacerbations (relative ratio [RR] 1.84; 95% confidence interval [CI] 1.29 to 2.64) and severe respiratory exacerbations (RR 2.05; 95% CI 1.12 to 3.74). Similarly, the 'Wheeze' profile was associated with higher rates of any (RR 1.55; 95% CI 1.12 to 2.15) and severe exacerbations (RR 1.73; 95% CI 1.00 to 2.98). The 'nearly all respiratory symptoms' profile was associated with a higher rate of exacerbations (any exacerbation: RR 2.12; 95% CI 1.56 to 2.89; severe exacerbations: RR 2.07; 1.23 to 3.47) and an accelerated annual FEV

interpretationRespiratory symptom profiles identifies distinct prognostic outcomes in mild-to-moderate COPD. The productive cough is associated with increased exacerbation risk, while the dry cough is associated with a lower lung function trajectory. TRIAL REGISTRATION NUMBER: NCT0196934.

Indexed as

LungPulmonary Disease, Chronic ObstructiveAgedCoughDisease ProgressionFemaleForced Expiratory VolumeHumansMaleMiddle AgedPrognosisRespiratory SoundsSeverity of Illness IndexCOPD epidemiologyCOPD Exacerbations

Identifiers

PMID41338594
PMCPMC12673541

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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.