Evidence map›Paper›PMID 26695373›Full record

ArticleAmerican journal of respiratory and critical care medicine2016

The Presence of Chronic Mucus Hypersecretion across Adult Life in Relation to Chronic Obstructive Pulmonary Disease Development.

James P Allinson, Rebecca Hardy, Gavin C Donaldson, Seif O Shaheen, Diana Kuh, Jadwiga A Wedzicha

Abstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 104 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
104citing papers in PubMed, 6 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

104 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
  2. Definitions of early COPD and predictors for disease progression: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2026
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Guideline
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Review
  12. Review
  13. Pre-COPD: Impact on prevention, detection, and treatment.Presse medicale (Paris, France : 1983) · 2026
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

44 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

James P Allinson1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom.ORCID http://orcid.org/0000-0002-3117-7533
Rebecca Hardy2 MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, United Kingdom; and.ORCID http://orcid.org/0000-0001-9949-0799
Gavin C Donaldson1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom.ORCID http://orcid.org/0000-0002-5538-4190
Seif O Shaheen3 Centre for Primary Care and Public Health, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
Diana Kuh2 MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, United Kingdom; and.ORCID http://orcid.org/0000-0001-7386-2857
Jadwiga A Wedzicha1 Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom.ORCID http://orcid.org/0000-0001-9642-1261

Funding

Department of Health RP-PG-0109-10056Medical Research Council G0800570Medical Research Council G1001365Medical Research Council G1001372Medical Research Council MC_UU_12019/1Medical Research Council MC_UU_12019/2Medical Research Council MC_UU_12019/4
6 · The paper itself

Abstract

rationaleChronic mucus hypersecretion (CMH) is common among smokers and is associated with chronic obstructive pulmonary disease development and progression.

objectivesTo understand how the relationships between smoking, CMH, and chronic obstructive pulmonary disease develop during adult life, and facilitate earlier disease detection and intervention.

methodsWe analyzed data on CMH, smoking, and lung function prospectively collected by the Medical Research Council National Survey of Health and Development, a nationally representative British cohort followed since birth in 1946. We analyzed the longitudinal relationships between smoking and CMH, how symptoms during life related to airflow limitation at 60-64 years, and how CMH duration between ages 43 and 60-64 years related to concurrent FEV1 decline. MEASUREMENTS AND MAIN

resultsFrom 5,362 individuals enrolled at birth, 4,427 contributed data between ages 20 and 64 years (52% male; 63% ever-smoker). Among smokers CMH prevalence escalated between ages 36 and 43 from 7.6 ± 2.0% to 13.0 ± 2.6%. At these ages, symptoms were associated with a higher risk of subsequent airflow limitation (odds ratio [95% confidence interval], 3.70 [1.62-8.45] and 4.11 [1.85-9.13], respectively). Across adult life, CMH followed a dynamic remitting-relapsing course. Symptom prevalence following smoking cessation returned to levels seen among never-smokers. The longer CMH was present across three occasions (ages 43, 53, and 60-64 yr), the greater the concurrent FEV1 decline, corresponding to an additional decrement of 3.6 ± 2.5 ml/yr per occasion that CMH was present (P = 0.005).

conclusionsCMH among middle-aged smokers represents an early developmental phase of chronic obstructive pulmonary disease. Smoking-related CMH usually resolves following smoking cessation but the longer its duration the greater the FEV1 lost, suggesting the course of CMH across adult life may reflect the underlying course of airway disease activity.

Indexed as

AdultAge FactorsAgingChronic DiseaseDisease ProgressionFemaleHumansLungMaleMiddle AgedMucusOdds RatioPulmonary Disease, Chronic ObstructiveRisk FactorsSmokingYoung Adultchronic bronchitischronic mucus hypersecretionCOPDcoughsmoking

Identifiers

PMID26695373
PMCPMC4824943

What OpenQuestion holds

Textmetadata
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.