Evidence map›Paper›PMID 33299332›Full record

ArticleJournal of asthma and allergy2020

Characteristics of Asthma-related Nocturnal Cough: A Potential New Digital Biomarker.

Frank Rassouli, Peter Tinschert, Filipe Barata, Claudia Steurer-Stey, Elgar Fleisch, Milo Alan Puhan, Florent Baty, Tobias Kowatsch, Martin Hugo Brutsche

Open access · goldAbstract read
In one paragraph

Article in Journal of asthma and allergy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Observational
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Validation of a small cough detector.ERJ open research · 2023
    Article
  11. Review
  12. Digital Phenotyping in Livestock Farming.Animals : an open access journal from MDPI · 2021
    Review
  13. Article
  14. Article
  15. 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

9 authors at 4 institutions in 1 country.

Frank Rassouli *Lung Center, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.
Peter Tinschert *Center for Digital Health Interventions, Institute of Technology Management, University of St. Gallen, St. Gallen, Switzerland.ORCID 0000-0003-0889-0151
Filipe BarataCenter for Digital Health Interventions, Department of Management, Technology, and Economics, ETH Zurich, Zurich, Switzerland.ORCID 0000-0002-3905-2380
Claudia Steurer-SteyEpidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland.
Elgar FleischCenter for Digital Health Interventions, Institute of Technology Management, University of St. Gallen, St. Gallen, Switzerland.ORCID 0000-0002-4842-1117
Milo Alan PuhanEpidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland.
Florent BatyLung Center, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.ORCID 0000-0002-1425-0428
Tobias KowatschCenter for Digital Health Interventions, Institute of Technology Management, University of St. Gallen, St. Gallen, Switzerland.ORCID 0000-0001-5939-4145
Martin Hugo BrutscheLung Center, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.ORCID 0000-0002-1612-3609
Kantonsspital St. Gallen · CHUniversity of St.Gallen · CHUniversity of Zurich · CHETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe nature of nocturnal cough is largely unknown. It might be a valid marker for asthma control but very few studies characterized it as a basis for better defining its role and its use as clinical marker. This study investigated prevalence and characteristics of nocturnal cough in asthmatics over the course of four weeks.

methodsIn two centers, 94 adult patients with physician-diagnosed asthma were recruited. Patient-reported outcomes and nocturnal sensor data were collected by a smartphone with a chat-based study app.

resultsPatients coughed in 53% of 2212 nights (range: 0-345 coughs/night). Median coughs per hour were 0 (IQR 0-1). Nocturnal cough rates showed considerable inter-individual variance. The highest counts were measured in the first 30 min in bed (4.5-fold higher than rest of night). Eighty-six percent of coughs were part of a cough cluster. Clusters consisted of a median of two coughs (IQR 2-4). Nocturnal cough was persistent within patient.

conclusionTo the best of the authors' knowledge, this study is the first to describe prevalence and characteristics of nocturnal cough in asthma over a period of one month, demonstrating that it was a prevalent symptom with large variance between patients and high persistence within patients. Cough events in asthmatics were 4.5 times more frequent within the first 30 min in bed indicating a potential role of positional change, and not more frequent during the early morning hours. An important next step will investigate the association between nocturnal cough and asthma control.

Indexed as

asthmanocturnal coughpassive monitoring

Identifiers

PMID33299332
PMCPMC7721277
OpenAlexW3106617186

What OpenQuestion holds

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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.