Definition and research guide
This page combines a MeSH definition, publication statistics and selected research abstracts. It is a starting point for reading the literature, not a medical textbook or a systematic evidence review.
Content available: 4 complete abstracts (987 words), 10 references. Full article text is not stored or reproduced here; follow the PMID, DOI or PMC links to read the original sources and their access terms.
Definition
Cough lasting for greater than 8 weeks in adults potentially impacting health-related quality OF LIFE. Chronic cough generally is associated with eosinophilic airway inflammation (e.g., asthma (cough-variant asthma) and non-asthmatic bronchitis, upper airway disorders, GERD and cough hypersensitivity syndrome).
Definition: NLM Medical Subject Headings (MeSH) scope note (Public domain (U.S. National Library of Medicine); attribution requested). View the MeSH record.
Also known as: Chronic Coughs; Cough, Chronic; Persistent Cough; Cough, Persistent; Persistent Coughs; Nagging Cough; Cough, Nagging; Nagging Coughs.
Where it fits in the MeSH classification
- Broader topics
- Cough
Related concepts
- Health-Related Quality
- Cough-Variant Asthma
- Bronchitis
Research landscape
PubMed indexes 320 records tagged with the MeSH heading “Chronic Cough” (counts retrieved 2026-11-04). 320 of them (100.0%) were published from 2020 onward, and the busiest period so far is 2020 onward with 320 records.
Reviews account for 91 records (28.4%) and meta-analyses for 11. Randomized controlled trials number 13 (4.1%) as a share of all records on the topic.
Show the data
| Period | Records |
|---|---|
| through 1999 | 0 |
| 2000-2009 | 0 |
| 2010-2019 | 0 |
| 2020 onward | 320 |
Publication-type chart data
| Type | Records | Share |
|---|---|---|
| Reviews | 91 | 28.4% |
| Meta-analyses | 11 | 3.4% |
| Randomized controlled trials | 13 | 4.1% |
Method: PubMed query "Chronic Cough"[MeSH Terms] with publication-type and date filters, retrieved 2026-11-04.
Reading the evidence in respiratory medicine
Research on airway and lung disease mixes lung-function tests, symptom diaries, imaging and hospital records, so what was measured and in whom matters as much as the result. Many conditions here, such as asthma and COPD, vary between people and over time, and exposure studies (smoking, pollution, workplace dust) show association rather than proof of cause. Nothing on this page is advice about treatment or inhalers; anyone with breathing difficulty should seek care from a qualified clinician. Check how the condition was defined, the severity of the people studied and whether outcomes were symptoms, lung function or hospital admissions.
Evidence from open-access studies
These open-access studies come from PubMed’s best-match results for this heading (papers whose main topic it is), ranked here by citation count, with one recent addition. Each abstract is reproduced in full under its recorded open licence so that you can read the authors’ own words. They illustrate the literature; they are not a systematic summary of it. Citation counts measure attention, not reliability or clinical benefit.
Chronic cough diagnosis, treatment, and referral practices among family physicians in the United States: a survey study [1]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundCough is one of the most common presenting problems for patients in primary care and is largely managed in primary care clinical settings.
- Closing excerpt
- Our results support that family physicians provide evidence-based management of chronic cough.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (263 words)
BackgroundCough is one of the most common presenting problems for patients in primary care and is largely managed in primary care clinical settings. Family physicians' familiarity with chronic cough guidelines and the extent to which these guidelines translate into everyday practice have not been well described. The objective of this study was to characterize current diagnosis, treatment, and referral practices among family physicians and to identify potentially impactful strategies to optimize chronic cough management in primary care.MethodsWe conducted a cross-sectional survey of 5,000 family physicians to explore diagnosis, treatment, and referral practices related to chronic cough management in adults in primary care. Respondents completed the survey via paper or online. The outcome measures were self-reported numeric ratings and responses related to the survey elements.Results588 surveys were completed (11.8% response rate). About half (49.6%) of respondents defined chronic cough in a manner consistent with the American College of Chest Physicians (ACCP) chronic cough guidelines, with the rest differing in opinion primarily regarding duration of symptom presentation. Respondents reported trying to rule out most common causes of chronic cough themselves before referring (mean 3.41 on a 4-point scale where 4 is "describes me completely") and indicated a desire for more resources to help them manage and treat chronic cough. Years in practice and rural/urban setting influenced diagnosis and referral practices.ConclusionsFamily physicians see chronic cough as a complicated condition that can be and is often diagnosed and treated entirely in a primary care setting. They also value the ability to refer in complex cases. Our results support that family physicians provide evidence-based management of chronic cough.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 38783239 · DOI · PMC11112819
Positive effect of deep diaphragmatic breathing training on gastroesophageal reflux-induced chronic cough: a clinical randomized controlled study [2]
Abstract reading summary — source excerpts
- Opening excerpt
- Background and objectiveTo explore the efficacy of deep diaphragmatic breathing training (DEP) in patients with gastroesophageal reflux-induced chronic cough (GERC).
- Closing excerpt
- cn/ ) [ChiCTR2200056246].
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (274 words)
Background and objectiveTo explore the efficacy of deep diaphragmatic breathing training (DEP) in patients with gastroesophageal reflux-induced chronic cough (GERC).MethodsA randomized controlled study was conducted involving 60 GERC patients who were divided into the intervention group and the control group (each with 30 patients). Both groups received routine medication treatment for GERC, while the intervention group received DEP training additionally. Both groups were evaluated by cough symptom scores, Hull airway reflux questionnaire (HARQ), gastroesophageal reflux diagnostic questionnaire (GerdQ), generalized anxiety disorder scale-7 (GAD-7), patient health questionnaire-9 (PHQ-9), Pittsburgh sleep quality index (PSQI), the Leicester cough questionnaire (LCQ), as well as capsaicin cough sensitivity testing, B-ultrasound and surface electromyography (sEMG) of the diaphragmatic muscles before and after treatment. The cough resolution rate and changes of the above indictors was compared between the two groups after eight weeks of treatment.ResultsAfter eight weeks of treatment, cough symptoms improved in both groups, but the cough resolution rate in the intervention group of 94% was significantly higher than that in the control group of 77% (χ2 = 6.402, P = 0.041). The intervention group showed significant improvements to the control group in GerdQ (6.13(0.35) VS 6.57(0.77)), GAD-7 (0(0;1) VS 1(0;3)), PSQI (2(1;3) VS 4(3;6)), LCQ (17.19(1.56) VS 15.88(1.92)) and PHQ-9 (0(0;0) VS 0(0;3)) after treatment. Compared to control group, sEMG activity of the diaphragmatic muscle was significantly increased in the intervention group after treatment, measured during DEP (79.00(2.49) VS 74.65 (1.93)) and quiet breathing (72.73 (1.96) VS 67.15 (2.48)).ConclusionDEP training can improve cough symptoms as an adjunctive treatment in GERC patients.Trial registrationThe protocol was registered in February 2, 2022 via the Chinese Clinical Trials Register ( http://www.chictr.org.cn/ ) [ChiCTR2200056246].
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 38637797 · DOI · PMC11027235
An observational study to understand burden and cost of care in adults diagnosed with refractory chronic cough (RCC) or unexplained chronic cough (UCC) [3]
Abstract reading summary — source excerpts
- Opening excerpt
- BackgroundRefractory and unexplained chronic cough (RCC and UCC) necessitate frequent referral for specialist evaluations, but data on healthcare resource utilisation and costs are lacking.
- Closing excerpt
- Resource utilisation was less after diagnosis, but remained higher than in a matched control cohort.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (224 words)
BackgroundRefractory and unexplained chronic cough (RCC and UCC) necessitate frequent referral for specialist evaluations, but data on healthcare resource utilisation and costs are lacking.MethodsThis observational study enrolled adults with RCC or UCC attending a specialist cough clinic and included a control cohort, both from North West England, matched 1:5 for age, gender and smoking history. Primary and secondary care data were obtained for the 5 years prior to and 2 years post initial clinic visit (index). The primary endpoint was the total 5-year healthcare cost to the UK NHS pre-RCC or UCC diagnosis compared to the control cohort.ResultsMean age at index for the 200 RCC or UCC consented patients was 62.2 ± 11.4 years; 71% were female, and 68% had never smoked. Mean duration of symptoms pre-diagnosis was 8.0 ± 9.4 years. Mean cough severity score was 63.7 ± 23.2 mm at index on a Visual Analog Scale, and Leicester Cough Questionnaire total score was 10.9 ± 4.1. GP data were available for 80 patients and mean total cost over the 5 years pre-diagnosis (index date) was 3.0-fold higher (95% CI 2.3, 3.9) than in the control cohort (p ConclusionDiagnosis of RCC or UCC requires significant health resource utilisation in the 5 years prior to a specialist clinic diagnosis. Resource utilisation was less after diagnosis, but remained higher than in a matched control cohort.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 38965601 · DOI · PMC11225373
Barriers and Facilitators to Timely Detection and Optimal Management of Chronic Wet Cough in Aboriginal Children Across Australia From the Perspective of Health Care Providers: A Qualitative Study [4]
Abstract reading summary — source excerpts
- Opening excerpt
- ObjectiveTo identify barriers and facilitators to the timely detection and optimal management of chronic wet cough (CWC) in children from the perspective of health care providers (HCPs) across primary care clinics providing services to Australian Aboriginal people in multiple, diverse communities.
- Closing excerpt
- A comprehensive approach is required to overcome barriers and deliver the intervention within a culturally secure framework.
- Interpretation limits
- Verbatim excerpts from the authors’ abstract; the closing excerpt may describe a finding, limitation or recommendation. Design, population, effect size and uncertainty have not been independently extracted or appraised. Read the complete abstract and linked paper before interpreting the findings.
Read complete abstract (226 words)
ObjectiveTo identify barriers and facilitators to the timely detection and optimal management of chronic wet cough (CWC) in children from the perspective of health care providers (HCPs) across primary care clinics providing services to Australian Aboriginal people in multiple, diverse communities.Study typeQualitative participatory action research study.Setting and participantsEight Australian primary care clinics across three states and territories. Semi-structured interviews and focus groups were conducted with 83 HCPs from eight primary care clinics across metropolitan, regional and remote health service settings between May 2021 and July 2023.Main outcome measuresBarriers to, and facilitators of, detection and optimal management of CWC in Aboriginal children in primary care settings.ResultsKey barriers identified included limited condition-specific knowledge, time constraints and competing priorities. HCPs identified key facilitators, such as the need for additional training, educational resources and various modifications to clinic systems. Barriers and facilitators were similar across settings. Proposed solutions varied and were based on several factors, such as community size, availability of existing infrastructure and local preferences. In addition, HCPs highlighted the importance of a culturally secure environment in fostering engagement and communication with Aboriginal families.ConclusionAlthough the barriers and facilitators to the detection and management of CWC in Aboriginal children were largely consistent across settings, solutions must be tailored to each community's unique circumstances. A comprehensive approach is required to overcome barriers and deliver the intervention within a culturally secure framework.
Abstract reproduced from the open-access article under the recorded cc by licence; © the authors. PMID 42815950 · DOI · PMC13626767
Key reviews and meta-analyses
The most cited review-type papers among PubMed’s best-match results for this heading, listed with bibliographic details only. Follow the links for the full text and access terms.
- Research article The Therapeutic Landscape in Chronic Cough [5]
- Research article Cough in Children and Adults: Diagnosis, Assessment and Management (CICADA). Summary of an updated position statement on chronic cough in Australia [6]
- Research article Chronic cough: more than just a persistent cough: a systematic literature review to understand the impact of chronic cough on quality of life [7]
- Research article Mucus Transpiration as the Basis for Chronic Cough and Cough Hypersensitivity [8]
- Research article Clinical Parameters of the Speech-Language Pathology Assessment of the Chronic Cough: A Scoping Review [9]
- Research article The Effect of Long-Term Azithromycin on Objective and Subjective Cough in Chronic Respiratory Disease: A Systematic Review and Meta-analysis of Randomised Controlled Trials and Noncomparative Studies [10]
References
- Shields JB, Callen E, Loskutova NY, Schelfhout J, Hester CM. Chronic cough diagnosis, treatment, and referral practices among family physicians in the United States: a survey study. . 2024. PMID 38783239 · DOI · PMC11112819
- Niu S, Zhang T, Li W, Wen S, Dong L, Wang S, et al.. Positive effect of deep diaphragmatic breathing training on gastroesophageal reflux-induced chronic cough: a clinical randomized controlled study. . 2024. PMID 38637797 · DOI · PMC11027235
- Smith JA, Stein N, Migas S, Bokowski S, Williams C, Baker P, et al.. An observational study to understand burden and cost of care in adults diagnosed with refractory chronic cough (RCC) or unexplained chronic cough (UCC). . 2024. PMID 38965601 · DOI · PMC11225373
- Lau GTY, Laird P, Aitken R, Barwick M, Bedford L, Bowden ER, et al.. Barriers and Facilitators to Timely Detection and Optimal Management of Chronic Wet Cough in Aboriginal Children Across Australia From the Perspective of Health Care Providers: A Qualitative Study. . 2026. PMID 42815950 · DOI · PMC13626767
- Smith JA. The Therapeutic Landscape in Chronic Cough. Lung. 2024. PMID 38127133 · DOI · PMC10896934
- Marchant JM, Chang AB, Kennedy E, King D, Perret JL, Schultz A, et al.. Cough in Children and Adults: Diagnosis, Assessment and Management (CICADA). Summary of an updated position statement on chronic cough in Australia. Med J Aust. 2024. PMID 37982357 · DOI
- Bali V, Adriano A, Byrne A, Akers KG, Frederickson A, Schelfhout J. Chronic cough: more than just a persistent cough: a systematic literature review to understand the impact of chronic cough on quality of life. Qual Life Res. 2024. PMID 38153616 · DOI
- Edwards DA, Chung KF. Mucus Transpiration as the Basis for Chronic Cough and Cough Hypersensitivity. Lung. 2024. PMID 38135857 · DOI
- Dornelas R, Casmerides MCB, da Silva RC, Victória Dos Anjos Souza M, Pereira LT, Ribeiro VV, et al.. Clinical Parameters of the Speech-Language Pathology Assessment of the Chronic Cough: A Scoping Review. J Voice. 2024. PMID 35012819 · DOI
- Sykes DL, Mason P, Rahunathan N, Hart SP, Morice AH, Crooks MG. The Effect of Long-Term Azithromycin on Objective and Subjective Cough in Chronic Respiratory Disease: A Systematic Review and Meta-analysis of Randomised Controlled Trials and Noncomparative Studies. Lung. 2024. PMID 38990397 · DOI · PMC11427617
About this article
- Sources
- NLM Medical Subject Headings (definition, synonyms); NCBI PubMed (counts, identifiers); Europe PMC (open-access abstracts and citation counts).
- Verification
- Every reference was resolved against PubMed on 2026-11-04; title, year and DOI matched.
- Review state
- automated source verified; no human expert review has been recorded yet.
- Version
- 1, last updated 2026-11-04.
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Evidence strength
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