Evidence map›Paper›PMID 35091662›Full record

ArticleNPJ digital medicine2022

Sounds of COVID-19: exploring realistic performance of audio-based digital testing.

Jing Han, Tong Xia, Dimitris Spathis, Erika Bondareva, Chloë Brown, Jagmohan Chauhan, Ting Dang, Andreas Grammenos, Apinan Hasthanasombat, Andres Floto and 2 more

Open access · goldAbstract read
In one paragraph

Article in NPJ digital medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
12.5field-weighted citation impact, top 1% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Cough biomarkers for diagnosis and monitoring of respiratory disease: a systematic review.European respiratory review : an official journal of the European Respiratory Society · 2026
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The sound of surgery-development of an acoustic trocar system enabling laparoscopic sound analysis.International journal of computer assisted radiology and surgery · 2024
    Article
  11. Article
  12. Omicron detection with large language models and YouTube audio data.medRxiv : the preprint server for health sciences · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Artificial Intelligence and Infectious Disease Imaging.The Journal of infectious diseases · 2023
    Article
  20. 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

12 authors at 1 institution in 1 country.

Jing Han *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0001-5776-6849
Tong Xia *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK. tx229@cam.ac.uk.ORCID http://orcid.org/0000-0002-6994-6318
Dimitris SpathisDepartment of Computer Science and Technology, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0001-9761-951X
Erika Bondareva *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.
Chloë Brown *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.
Jagmohan Chauhan *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.
Ting Dang *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.
Andreas Grammenos *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.
Apinan Hasthanasombat *Department of Computer Science and Technology, University of Cambridge, Cambridge, UK.
Andres FlotoDepartment of Medicine, University of Cambridge, Cambridge, UK.
Pietro CicutaDepartment of Physics, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0002-9193-8496
Cecilia MascoloDepartment of Computer Science and Technology, University of Cambridge, Cambridge, UK.
University of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To identify Coronavirus disease (COVID-19) cases efficiently, affordably, and at scale, recent work has shown how audio (including cough, breathing and voice) based approaches can be used for testing. However, there is a lack of exploration of how biases and methodological decisions impact these tools' performance in practice. In this paper, we explore the realistic performance of audio-based digital testing of COVID-19. To investigate this, we collected a large crowdsourced respiratory audio dataset through a mobile app, alongside symptoms and COVID-19 test results. Within the collected dataset, we selected 5240 samples from 2478 English-speaking participants and split them into participant-independent sets for model development and validation. In addition to controlling the language, we also balanced demographics for model training to avoid potential acoustic bias. We used these audio samples to construct an audio-based COVID-19 prediction model. The unbiased model took features extracted from breathing, coughs and voice signals as predictors and yielded an AUC-ROC of 0.71 (95% CI: 0.65-0.77). We further explored several scenarios with different types of unbalanced data distributions to demonstrate how biases and participant splits affect the performance. With these different, but less appropriate, evaluation strategies, the performance could be overestimated, reaching an AUC up to 0.90 (95% CI: 0.85-0.95) in some circumstances. We found that an unrealistic experimental setting can result in misleading, sometimes over-optimistic, performance. Instead, we reported complete and reliable results on crowd-sourced data, which would allow medical professionals and policy makers to accurately assess the value of this technology and facilitate its deployment.

Identifiers

PMID35091662
PMCPMC8799654
OpenAlexW3175510762

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.