ArticleCough (London, England)2006
Establishing a gold standard for manual cough counting: video versus digital audio recordings.
Article in Cough (London, England), 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.
What it found
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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.
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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.
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Who cites it
19 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Tools for assessing outcomes in studies of chronic cough: CHEST guideline and expert panel report.Chest · 2015Guideline
- Guideline
- Performance evaluation of human cough annotators: optimal metrics and sex differences.BMJ open respiratory research · 2023Article
- Nighttime Continuous Contactless Smartphone-Based Cough Monitoring for the Ward: Validation Study.JMIR formative research · 2023Article
- Chronic cough-the limitation and advances in assessment techniques.Journal of thoracic disease · 2022Review
- Performance of cough monitoring by Albus Home, a contactless and automated system for nocturnal respiratory monitoring at home.ERJ open research · 2022Article
- Noncontact Sensing of Contagion.Journal of imaging · 2021Review
- Cough frequency monitors: can they discriminate patient from environmental coughs?Journal of thoracic disease · 2016Article
- Breathing hot humid air induces airway irritation and cough in patients with allergic rhinitis.Respiratory physiology & neurobiology · 2014Article
- GERD-related cough: pathophysiology and diagnostic approach.Current gastroenterology reports · 2011Review
- Article
- Validation of an ambulatory cough detection and counting application using voluntary cough under different conditions.Cough (London, England) · 2010Article
- Cough and dyspnea during bronchoconstriction: comparison of different stimuli.Cough (London, England) · 2009Article
- The utility of the mannitol challenge in the assessment of chronic cough: a pilot study.Cough (London, England) · 2008Article
- Simultaneous versus video counting of coughs in hypertonic cough challenges.Cough (London, England) · 2008Article
- Rebuttal: cough is an expiratory sound.Lung · 2008Article
- Article
- Defining the relationship between gastroesophageal reflux and cough: probabilities, possibilities and limitations.Cough (London, England) · 2007Article
- Evaluation of a new self-contained, ambulatory, objective cough monitor.Cough (London, England) · 2006Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundManual cough counting is time-consuming and laborious; however it is the standard to which automated cough monitoring devices must be compared. We have compared manual cough counting from video recordings with manual cough counting from digital audio recordings.
methodsWe studied 8 patients with chronic cough, overnight in laboratory conditions (diagnoses were 5 asthma, 1 rhinitis, 1 gastro-oesophageal reflux disease and 1 idiopathic cough). Coughs were recorded simultaneously using a video camera with infrared lighting and digital sound recording. The numbers of coughs in each 8 hour recording were counted manually, by a trained observer, in real time from the video recordings and using audio-editing software from the digital sound recordings.
resultsThe median cough frequency was 17.8 (IQR 5.9-28.7) cough sounds per hour in the video recordings and 17.7 (6.0-29.4) coughs per hour in the digital sound recordings. There was excellent agreement between the video and digital audio cough rates; mean difference of -0.3 coughs per hour (SD +/- 0.6), 95% limits of agreement -1.5 to +0.9 coughs per hour. Video recordings had poorer sound quality even in controlled conditions and can only be analysed in real time (8 hours per recording). Digital sound recordings required 2-4 hours of analysis per recording.
conclusionManual counting of cough sounds from digital audio recordings has excellent agreement with simultaneous video recordings in laboratory conditions. We suggest that ambulatory digital audio recording is therefore ideal for validating future cough monitoring devices, as this as this can be performed in the patients own environment.
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Registered trials
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.