Evidence map›Paper›PMID 34385238›Full record

ArticleBMJ open2021

Chronic breathlessness and sleep problems: a population-based survey.

David C Currow, Sungwon Chang, Diana Ferreira, Danny J Eckert, David Gonzalez-Chica, Nigel Stocks, Magnus Per Ekström

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

5 citing papers in PubMed, 12 citations in OpenAlex.

  1. Global disparities in chronic dyspnoea prevalence in population-based studies: a comprehensive literature review.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  2. Article
  3. Lessons about Low-Dose Morphine at the Intersection of Sleep and Breathlessness.American journal of respiratory and critical care medicine · 2024
    Article
  4. Article
  5. 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

7 authors at 4 institutions in 3 countries.

David C CurrowMPACCT, Faculty of Health, University of Technology Sydney, Sydney, New South Wales, Australia David.Currow@uts.edu.au.ORCID 0000-0003-1988-1250
Sungwon ChangMPACCT, Faculty of Health, University of Technology Sydney, Sydney, New South Wales, Australia.
Diana FerreiraCollege of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.ORCID 0000-0002-2554-8457
Danny J EckertCollege of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.ORCID 0000-0003-3503-2363
David Gonzalez-ChicaUniversity of Adelaide, Adelaide, South Australia, Australia.ORCID 0000-0002-7153-2878
Nigel StocksUniversity of Adelaide, Adelaide, South Australia, Australia.ORCID 0000-0002-9018-0361
Magnus Per EkströmDepartment of Clinical Sciences, Division of Respiratory Medicine & Allergology, Lund University, Lund, Sweden.
Flinders University · AUThe University of Adelaide · AUUniversity of Technology Sydney · AULund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to explore the relationship (presence and severity) between chronic breathlessness and sleep problems, independently of diagnoses and health service contact by surveying a large, representative sample of the general population.

settingAnalysis of the 2017 South Australian Health Omnibus Survey, an annual, cross-sectional, face-to-face, multistage, clustered area systematic sampling survey carried out in Spring 2017.Chronic breathlessness was self-reported using the ordinal modified Medical Research Council (mMRC; scores 0 (none) to 4 (housebound)) where breathlessness has been present for more than 3 of the previous 6 months. 'Sleep problems-ever' and 'sleep problem-current' were assessed dichotomously. Regression models were adjusted for age; sex and body mass index (BMI).

results2900 responses were available (mean age 48.2 years (SD=18.6); 51% were female; mean BMI 27. 1 (SD=5.9)). Prevalence was: 2.7% (n=78) sleep problems-past; 6.8% (n=198) sleep problems-current and breathlessness (mMRC 1-4) was 8.8% (n=254). Respondents with sleep problemspast were more likely to be breathless, older with a higher BMI and sleep problems-present also included a higher likelihood of being female.After adjusting for age, sex and BMI, respondents with chronic breathlessness had 1.9 (95% CI=1.0 to 3.5) times the odds of sleep problems-past and sleep problems-current (adjusted OR=2.3; 95% CI=1.6 to 3.3).

conclusionsThere is a strong association between the two prevalent conditions. Future work will seek to understand if there is a causal relationship using validated sleep assessment tools and whether better managing one condition improves the other.

Indexed as

DyspneaSleepAustraliaCross-Sectional StudiesFemaleHealth SurveysHumansMiddle Agedclinical auditeducation & training (see medical education & training)sleep medicine

Identifiers

PMID34385238
PMCPMC8362739
OpenAlexW3192563655

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.