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Arch Iran Med. 2017;20(5): 302-307.
PMID: 28510466
Scopus ID: 85019103636
  Abstract View: 2450
  PDF Download: 1681

Original Article

Empirical Bayesian Geographical Mapping of Occupational Accidents among Iranian Workers

Nasim Vahabi, Anoshirvan Kazemnejad*, Somnath Datta
*Corresponding Author: Email: Kazem_an@modares.ac.ir

Abstract

BACKGROUND: Work-related accidents are believed to be a serious preventable cause of mortality and disability worldwide. This study aimed to provide Bayesian geographical maps of occupational injury rates among workers insured by the Iranian Social Security Organization.

METHODS: The participants included all insured workers in the Iranian Social Security Organization database in 2012. One of the applications of the Bayesian approach called the Poisson-Gamma model was applied to estimate the relative risk of occupational accidents. Data analysis and mapping were performed using R 3.0.3, Open-Bugs 3.2.3 rev 1012 and ArcMap9.3.
RESULTS: The majority of all 21,484 investigated occupational injury victims were male (98.3%) including 16,443 (76.5%) single workers aged 20 – 29 years. The accidents were more frequent in basic metal, electric, and non-electric machining jobs. About 0.4% (96) of work-related accidents led to death, 2.2% (457) led to disability (partial and total), 4.6% (980) led to fixed compensation, and 92.8% (19,951) of the injured victims recovered completely. The geographical maps of estimated relative risk of occupational accidents were also provided. The results showed that the highest estimations pertained to provinces which were mostly located along mountain chains, some of which are categorized as deprived provinces in Iran.
CONCLUSIONS: The study revealed the need for further investigation of the role of economic and climatic factors in high risk areas. The application of geographical mapping together with statistical approaches can provide more accurate tools for policy makers to make better decisions in order to prevent and reduce the risks and adverse outcomes of work-related accidents.
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ePublished: 01 May 2017
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