Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces

Background: Falls from height are one of the main causes of fatal occupational injuries. The objective of this study was to present a model for estimating occurrence probability of falling from height. Methods: In order to make a list of factors affecting falls, we used four expert group's...

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Main Authors: Seyed Shamseddin Alizadeh, Seyed Bagher Mortazavi, Mohammad Mehdi Sepehri
Format: Article
Language:English
Published: Tabriz University of Medical Sciences 2014-12-01
Series:Health Promotion Perspectives
Subjects:
Online Access:http://journals.tbzmed.ac.ir/HPP/Manuscript/HPP-4-187.pdf
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author Seyed Shamseddin Alizadeh
Seyed Bagher Mortazavi
Mohammad Mehdi Sepehri
author_facet Seyed Shamseddin Alizadeh
Seyed Bagher Mortazavi
Mohammad Mehdi Sepehri
author_sort Seyed Shamseddin Alizadeh
collection DOAJ
description Background: Falls from height are one of the main causes of fatal occupational injuries. The objective of this study was to present a model for estimating occurrence probability of falling from height. Methods: In order to make a list of factors affecting falls, we used four expert group's judgment, literature review and an available database. Then the validity and reliability of designed questionnaire were determined and Bayesian networks were built. The built network, nodes and curves were quantified. For network sensitivity analysis, four types of analysis carried out. Results: A Bayesian network for assessment of posterior probabilities of falling from height proposed. The presented Bayesian network model shows the interrelationships among 37 causes affecting the falling from height and can calculate its posterior probabilities. The most important factors affecting falling were Non-compliance with safety instructions for work at height (0.127), Lack of safety equipment for work at height (0.094) and Lack of safety instructions for work at height (0.071) respectively. Conclusion: The proposed Bayesian network used to determine how different causes could affect the falling from height at work. The findings of this study can be used to decide on the falling accident prevention programs.
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spelling doaj.art-55fe42e9c3bf4ca3b7ca969dd271a2b42022-12-22T01:32:22ZengTabriz University of Medical SciencesHealth Promotion Perspectives2228-64972228-64972014-12-014218719410.5681/hpp.2014.025Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at WorkplacesSeyed Shamseddin Alizadeh0Seyed Bagher Mortazavi1Mohammad Mehdi Sepehri2Department of Occupational Health Engineering, , Tabriz University of Medical Sciences, Tabriz, IranDepartment of Occupational Health Engineering, Tarbiat Modares University, Tehran, IranDepartment of Industrial Engineering, Tarbiat Modares University, Tehran, IranBackground: Falls from height are one of the main causes of fatal occupational injuries. The objective of this study was to present a model for estimating occurrence probability of falling from height. Methods: In order to make a list of factors affecting falls, we used four expert group's judgment, literature review and an available database. Then the validity and reliability of designed questionnaire were determined and Bayesian networks were built. The built network, nodes and curves were quantified. For network sensitivity analysis, four types of analysis carried out. Results: A Bayesian network for assessment of posterior probabilities of falling from height proposed. The presented Bayesian network model shows the interrelationships among 37 causes affecting the falling from height and can calculate its posterior probabilities. The most important factors affecting falling were Non-compliance with safety instructions for work at height (0.127), Lack of safety equipment for work at height (0.094) and Lack of safety instructions for work at height (0.071) respectively. Conclusion: The proposed Bayesian network used to determine how different causes could affect the falling from height at work. The findings of this study can be used to decide on the falling accident prevention programs.http://journals.tbzmed.ac.ir/HPP/Manuscript/HPP-4-187.pdfPosterior probabilitiesBayesian networksFallingAccident
spellingShingle Seyed Shamseddin Alizadeh
Seyed Bagher Mortazavi
Mohammad Mehdi Sepehri
Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces
Health Promotion Perspectives
Posterior probabilities
Bayesian networks
Falling
Accident
title Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces
title_full Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces
title_fullStr Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces
title_full_unstemmed Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces
title_short Building a Model Using Bayesian Network for Assessment of Posterior Probabilities of Falling From Height at Workplaces
title_sort building a model using bayesian network for assessment of posterior probabilities of falling from height at workplaces
topic Posterior probabilities
Bayesian networks
Falling
Accident
url http://journals.tbzmed.ac.ir/HPP/Manuscript/HPP-4-187.pdf
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