Evidence map›Paper›PMID 28930641›Full record

ArticleAmerican journal of respiratory and critical care medicine2018

Face Masks and Cough Etiquette Reduce the Cough Aerosol Concentration of Pseudomonas aeruginosa in People with Cystic Fibrosis.

Michelle E Wood, Rebecca E Stockwell, Graham R Johnson, Kay A Ramsay, Laura J Sherrard, Nassib Jabbour, Emma Ballard, Peter O'Rourke, Timothy J Kidd, Claire E Wainwright and 4 more

Open access · greenAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in American journal of respiratory and critical care medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. The Effectiveness of Ultraviolet-C (UV-C) Irradiation on the Viability of AirborneInternational journal of environmental research and public health · 2022
    Article
  7. Review
  8. Article
  9. Article
  10. Dental Healthcare Amid the COVID-19 Pandemic.International journal of environmental research and public health · 2021
    Review
  11. Article
  12. Article
  13. Environmental Microbial Contamination during Cystic Fibrosis Group-Based Psychotherapy.International journal of environmental research and public health · 2021
    Article
  14. An evidence review of face masks against COVID-19.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. A Review of Decontamination Methods for Filtering Facepiece Respirators.Journal of the International Society for Respiratory Protection · 2020
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 3 countries.

Michelle E Wood1 Lung Bacteria Group and.ORCID 0000-0001-9026-7080
Rebecca E Stockwell1 Lung Bacteria Group and.
Graham R Johnson4 International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, Australia.
Kay A Ramsay1 Lung Bacteria Group and.
Laura J Sherrard1 Lung Bacteria Group and.
Nassib Jabbour4 International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, Australia.
Emma Ballard6 Statistical Support Group, QIMR Berghofer Medical Research Institute, Brisbane, Australia.
Peter O'Rourke6 Statistical Support Group, QIMR Berghofer Medical Research Institute, Brisbane, Australia.
Timothy J Kidd1 Lung Bacteria Group and.
Claire E Wainwright3 Faculty of Medicine and.
Luke D Knibbs10 School of Public Health, The University of Queensland, Herston, Australia.
Peter D Sly3 Faculty of Medicine and.
Lidia Morawska4 International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, Australia.
Scott C Bell1 Lung Bacteria Group and.ORCID 0000-0001-8651-7139
The University of Queensland · AUQueensland University of Technology · AUQIMR Berghofer Medical Research Institute · AUQueen's University Belfast · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationalePeople with cystic fibrosis (CF) generate Pseudomonas aeruginosa in droplet nuclei during coughing. The use of surgical masks has been recommended in healthcare settings to minimize pathogen transmission between patients with CF.

objectivesTo determine if face masks and cough etiquette reduce viable P. aeruginosa aerosolized during coughing.

methodsTwenty-five adults with CF and chronic P. aeruginosa infection were recruited. Participants performed six talking and coughing maneuvers, with or without face masks (surgical and N95) and hand covering the mouth when coughing (cough etiquette) in an aerosol-sampling device. An Andersen Cascade Impactor was used to sample the aerosol at 2 meters from each participant. Quantitative sputum and aerosol bacterial cultures were performed, and participants rated the mask comfort levels during the cough maneuvers. MEASUREMENTS AND MAIN

resultsDuring uncovered coughing (reference maneuver), 19 of 25 (76%) participants produced aerosols containing P. aeruginosa, with a positive correlation found between sputum P. aeruginosa concentration (measured as cfu/ml) and aerosol P. aeruginosa colony-forming units. There was a reduction in aerosol P. aeruginosa load during coughing with a surgical mask, coughing with an N95 mask, and cough etiquette compared with uncovered coughing (P < 0.001). A similar reduction in total colony-forming units was observed for both masks during coughing; yet, participants rated the surgical masks as more comfortable (P = 0.013). Cough etiquette provided approximately half the reduction of viable aerosols of the mask interventions during voluntary coughing. Talking was a low viable aerosol-producing activity.

conclusionsFace masks reduce cough-generated P. aeruginosa aerosols, with the surgical mask providing enhanced comfort. Cough etiquette was less effective at reducing viable aerosols.

Indexed as

MasksAdultAustraliaCohort StudiesCoughCystic FibrosisDisease Transmission, InfectiousFemaleHumansInhalation ExposureMalePseudomonas aeruginosaPseudomonas InfectionsReference Valuescough etiquettecystic fibrosisinfection controlN95 masksurgical mask

Identifiers

PMID28930641
OpenAlexW2755194400

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.