Evidence map›Paper›PMID 29276635›Full record

ArticleSafety and health at work2017

Individual Fit Testing of Hearing Protection Devices Based on Microphone in Real Ear.

Azam Biabani, Mohsen Aliabadi, Rostam Golmohammadi, Maryam Farhadian

Open access · goldAbstract read
In one paragraph

Article in Safety and health at work, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 6% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. A Tester to Evaluate the Correct Placement of Earplugs.International journal of environmental research and public health · 2022
    Article
  4. Article
  5. Article
  6. Selection of Earmuffs and Other Personal Protective Equipment Used in Combination.International journal of environmental research and public health · 2019
    Article
  7. 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

4 authors at 1 institution in 1 country.

Azam BiabaniDepartment of Occupational Hygiene, School of Public Health and Researches Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
Mohsen AliabadiDepartment of Occupational Hygiene, School of Public Health and Researches Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
Rostam GolmohammadiDepartment of Occupational Hygiene, School of Public Health and Researches Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
Maryam FarhadianDepartment of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Hamedan University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLabeled noise reduction (NR) data presented by manufacturers are considered one of the main challenging issues for occupational experts in employing hearing protection devices (HPDs). This study aimed to determine the actual NR data of typical HPDs using the objective fit testing method with a microphone in real ear (MIRE) method.

methodsFive available commercially earmuff protectors were investigated in 30 workers exposed to reference noise source according to the standard method, ISO 11904-1. Personal attenuation rating (PAR) of the earmuffs was measured based on the MIRE method using a noise dosimeter (SVANTEK, model SV 102).

resultsThe results showed that means of PAR of the earmuffs are from 49% to 86% of the nominal NR rating. The PAR values of earmuffs when a typical eyewear was worn differed statistically (

conclusionThis study could provide local individual fit data. Ergonomic aspects of the earmuffs and different levels of users experience and awareness can be considered the main factors affecting individual fitting compared with the laboratory condition for acquiring the labeled NR data. Based on the obtained fit testing results, the field application of MIRE can be employed for complementary studies in real workstations while workers perform their regular work duties.

Indexed as

fit testinghearing protection devicemicrophone in real earnoise reduction rating

Identifiers

PMID29276635
PMCPMC5715487
OpenAlexW2604674026

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.