Evidence map›Paper›PMID 26933649›Full record

ArticleHealth promotion perspectives2015

Occupational Exposure and Health Impairments of Formaldehyde on Employees of a Wood Industry.

Mohammad Javad Jafari, Abolfazl Rahimi, Leila Omidi, Mohammad Hassan Behzadi, Mohammad Hassan Rajabi

Open access · diamondAbstract read
In one paragraph

Article in Health promotion perspectives, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 32% 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

5 citing papers in PubMed, 15 citations in OpenAlex.

  1. Genetic polymorphisms ofMolecular biology research communications · 2026
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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

5 authors at 4 institutions in 1 country.

Mohammad Javad JafariOccupational Health Engineering Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abolfazl RahimiDepartment of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Leila OmidiOccupational Health Engineering Department, Tehran University of Medical Sciences, Tehran, Iran.
Mohammad Hassan BehzadiDepartment of Statistics, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Mohammad Hassan RajabiDoctorate of Laboratory Sciences, Golestan University of Medical Sciences, Gonbad, Iran.
Islamic Azad University, Science and Research Branch · IRGolestan University · IRShahid Beheshti University of Medical Sciences · IRTehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOccupational exposure to formaldehyde may decrease white blood cell counts and change blood concentration. In this study, the influences of occupational exposure to formaldehyde on the number of white blood cells and blood concentrations were studied.

methodsThis case-control study was conducted in June of 2012 at North Wood Factory, Golestan Province, Iran. The US-NIOSH method No. 2541 was used to determine the occupational exposure of 30 workers of the production line (case group) and 30 administrative staffs (control group) to formalde-hyde. The number of white blood cells and blood concentration were determined using the normal blood count method and related indices. Demographic features as well as the symptoms of being exposed to formaldehyde were collected using a standard questionnaire.

resultsThe occupational exposure of case group ranged from 0.50 ppm to 1.52 ppm. The prevalence of all studied symptoms from formaldehyde exposure in workers (2<median<5; range 1 to 5) was signifi-cantly different (P<0.001) towards the administrative staffs (median 1; range 1 to 4). The number of white blood cells in production line workers was not significantly different from those in administra-tive staff. The average blood concentration in the case group was significantly different from the con-trol group (mean difference= 0.9 [95% CI: 0.40-1.39];P=0.007).

conclusionOccupational exposure to formaldehyde changed the blood concentration of the studied workers but did not change the number of their white blood cells.

Indexed as

Blood CellFormaldehydeOccupational ExposureSymptomsWood Industry

Identifiers

PMID26933649
PMCPMC4772800
OpenAlexW2291101709

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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.