Evidence map›Paper›PMID 30805730›Full record

ArticleEnvironmental monitoring and assessment2019

Exposure to lead and its effect on sleep quality and digestive problems in soldering workers.

Mahmoud Mohammadyan, Mahmood Moosazadeh, Abasalt Borji, Narges Khanjani, Somayeh Rahimi Moghadam

Abstract read
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In one paragraph

Article in Environmental monitoring and assessment, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Associations of a metal mixture and vitamin D with sleep duration among adolescents and young adults from the 2011-2018 NHANES cycles.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025
    Article
  6. Article
  7. Childhood lead exposure and sleep problems in adolescents: a longitudinal cohort study.International archives of occupational and environmental health · 2024
    Article
  8. Article
  9. Family- and neighborhood-level environmental associations with physical health conditions in 9- and 10-year-olds.Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 2023
    Article
  10. Influence of Environmental Exposure to Steel Waste on Endocrine Dysregulation andInternational journal of environmental research and public health · 2023
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Health risk assessment of occupational exposure to styrene in Neyshabur electronic industries.Environmental science and pollution research international · 2019
    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

5 authors.

Mahmoud MohammadyanHealth Science Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran.
Mahmood MoosazadehHealth Science Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran.
Abasalt BorjiBasic Sciences Department, Neyshabur University of Medical Sciences, Neyshabur, Iran.
Narges KhanjaniEnvironmental Health Engineering Research Center, Kerman University of Medical Science, Kerman, Iran.
Somayeh Rahimi MoghadamStudent Research Committee, Health Sciences Research Center, Faculty of Health, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran. s.rahimimoghadam@gmail.com.ORCID http://orcid.org/0000-0002-2633-8881

Funding

Mazandaran University of Medical Sciences -nyshabur University of Medical Sciences (IR) -
6 · The paper itself

Abstract

Some studies show that exposure to lead affects sleep quality and causes digestive disorders. The aim of this study was to evaluate the quality of sleep and digestive disorders in solderers exposed to lead. In a cross-sectional study, the occupational exposure of 40 soldering workers to lead fume and their blood lead levels were measured in the electronics industry of Neyshabur city, according to standard methods. The sleep quality of workers was measured by the Pittsburgh Sleep Quality Index (PSQI) questionnaire and their digestive disorders were recorded in a checklist. This study showed that 67.5% of subjects had poor sleep quality. There was a significant relation between sleep quality, air lead (p = 0.02), and blood lead (p = 0.03). Bad sleep quality was 2.4 times higher in subjects exposed to lead above the threshold (p = 0.03). 92.5% of the population under study suffered from at least one digestive disorder. Digestive disorders such as hiccupping (85%) and nausea (67%) were more common among the workers, and their odds was 3.09 and 2.00 times higher in workers exposed to lead above the threshold, compared with others. Bad sleep quality and gastrointestinal disorders were prevalent among workers exposed to lead. The results of this study confirm the need for further research about the side effects of lead on humans. It also clarifies the need for a revision in the recommended occupational exposure level for lead.

Indexed as

MetallurgyAdultAir Pollutants, OccupationalCross-Sectional StudiesElectronicsEnvironmental MonitoringFemaleGasesGastrointestinal TractHumansLeadMaleOccupational ExposurePrevalenceSleepAir Pollutants, OccupationalGasesLeadElectronics industryGastrointestinal disordersLeadSleep hygieneSoldering

Identifiers

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.