Evidence map›Paper›PMID 35645035›Full record

ArticleThe Medical journal of Australia2022

N95 respirators: quantitative fit test pass rates and usability and comfort assessment by health care workers.

Irene Ng, Benjamin Kave, Fiona Begg, Charles R Bodas, Reny Segal, Daryl Williams

Abstract read
In one paragraph

Article in The Medical journal of Australia, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  6. Article
  7. Infra-Red Imaging to Detect Respirator Leak in Healthcare Workers During Fit-Testing Clinic.IEEE open journal of engineering in medicine and biology · 2024
    Article
  8. Innovations with Validation: An Ingenious Way Forward?Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2023
    Article
  9. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Irene NgThe Royal Melbourne Hospital, Melbourne, VIC.ORCID 0000-0002-6632-5604
Benjamin KaveThe Royal Melbourne Hospital, Melbourne, VIC.
Fiona BeggThe Royal Melbourne Hospital, Melbourne, VIC.
Charles R BodasThe Royal Melbourne Hospital, Melbourne, VIC.
Reny SegalThe Royal Melbourne Hospital, Melbourne, VIC.
Daryl WilliamsThe Royal Melbourne Hospital, Melbourne, VIC.ORCID 0000-0002-6987-5804

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare the performance of four N95 respirator types with respect to quantitative fit test pass rate and health care worker-rated usability and comfort. DESIGN, SETTING,

participantsHealth care workers who participated in the respiratory protection program at the Royal Melbourne Hospital, 1 October 2020 - 31 May 2021. Participants underwent quantitative N95 respirator fit testing (at least three of four types: semi-rigid cup, flat-fold cup, duckbill, and three-panel flat-fold types), and were invited to complete an online usability and comfort assessment for respirators for which their fit test results were passes.

main outcome measuresFit test pass rate, and user-rated overall comfort and assessment ratings (five-point Likert scales), by N95 respirator type.

resultsA total of 2161 health care workers underwent quantitative fit testing (women, 1586 [73.4%]; nurses, 1271 [58.8%]). The overall fit test pass rates were 65.0% for the semi-rigid cup respirators (1029/1583 tests), 32.4% for the flat-fold respirator (660/2035 tests), 59.2% for the duckbill respirators (2005/3387 tests), and 96.4% for the three-panel flat-fold respirator (1876/1946 tests). 378 health care workers completed the comfort and usability survey. Overall comfort and assessment ratings each differed by respirator group (P < 0.001); the median overall comfort (4; IQR, 3-4) and overall assessment values (4; IQR, 3-5) were highest for the three-panel flat-fold respirator and lowest for the semi-rigid cup respirators (comfort: 2 [IQR, 1-3]; assessment: 2 [IQR, 2-3]).

conclusionsThe three-panel flat-fold N95 respirator outperformed the three alternative types with regard to fit test pass rate and user-rated comfort and usability. To maximise respiratory protection for health care workers, these factors should be considered when making respirator procurement decisions.

Indexed as

Occupational ExposureRespiratory Protective DevicesEquipment DesignFemaleHealth PersonnelHumansN95 RespiratorsInfection controlPrevention and controlProtective devicesPublic healthPublic policyRespiratory tract infections

Identifiers

PMID35645035
PMCPMC9347558

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.