Evidence map›Paper›PMID 42389188›Full record

ArticleJournal of public health research2026

Impact of occupational exposure to formaldehyde in Keratin hair treatments on lung function among salon workers: A cross-sectional study.

Mohammad Z Darabseh, Rahaf Badran, Aseel Aburub, Ragad Alkaraki, Tarekq Gharibeh, Ala'a M Shurrab, Anas Nizar, Owis Eilayyan, Bence L Raposa, Pongrác Ács

Abstract read
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In one paragraph

Article in Journal of public health research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Mohammad Z DarabsehDepartment of Physiotherapy, School of Rehabilitation Sciences, The University of Jordan, Amman, Jordan.ORCID https://orcid.org/0000-0002-0535-0195
Rahaf BadranDepartment of Physiotherapy, Faculty of Allied Medical Sciences, Philadelphia University, Amman, Jordan.
Aseel AburubDepartment of Physiotherapy, Applied Science Private University, Amman, Jordan.
Ragad AlkarakiDepartment of Allied Medical Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan.ORCID https://orcid.org/0009-0009-8742-1740
Tarekq GharibehPulmonary Critical Care and Sleep Medicine, Faculty of Medicine, Public Health Institute, the University of Jordan Amman, Jordan.
Ala'a M ShurrabDepartment of Basic Medical Science, Faculty of Medicine, Al-Balqa Applied University, Al Salt, Jordan.
Anas NizarDepartment of Respiratory Therapy, Isra University, Amman, Jordan.
Owis EilayyanDepartment of Physical Therapy, Al-Ahliyya Amman University, Jordan.
Bence L RaposaFaculty of Health Sciences, Institute of Basic Health Sciences, Department of Midwifery and Health Visiting, University of Pécs, Pécs, Hungary.
Pongrác ÁcsInstitute of Physiotherapy and Sports Science, Faculty of Health Sciences, University of Pécs, Hungary.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Keratin hair treatments are widely used in salons due to their ability to straighten hair. However, these treatments often contain formaldehyde, a known volatile organic compound (VOC) associated with adverse respiratory effects. Salon workers performing keratin treatments may be at increased risk of respiratory impairment due to occupational exposure to formaldehyde. This study aimed to assess the impact of formaldehyde exposure during keratin hair treatments on lung function among salon workers. Design and methods: This cross-sectional study included 41 female salon workers who regularly perform keratin treatments. Spirometry was conducted to measure FEV1 (forced expiratory volume in the first second), FVC (forced vital capacity), and the FEV1/FVC ratio. Values were compared with predicted norms, and associations with exposure-related variables were analyzed using independent Results: Participants showed significantly lower mean values for FEV1, FVC, and FEV1/FVC ratios than predicted norms ( Conclusion: These findings underscore the need for improved protective protocols in salons to safeguard workers' respiratory health.

Indexed as

formaldehyde exposurekeratin hair treatmentlung functionsalon workersspirometrywork safety

Identifiers

PMID42389188
PMCPMC13320075

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Registered trials

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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.