Epidemiology and Health

Original Article

Predicting needlestick and sharps injuries and determining preventive strategies using a Bayesian network approach in Tehran, Iran: Hamed Akbari, Fakhradin Ghasemi, Hesam Akbari, Amir Adibzadeh; Epidemiol Health. 2018;40:e2018042. Published online August 20, 2018; DOI: https://doi.org/10.4178/epih.e2018042

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Abstract

OBJECTIVES
Recent studies have shown that the rate of needlestick and sharps injuries (NSIs) is unacceptably high in Iranian hospitals. The aim of the present study was to use a systematic approach to predict and reduce these injuries.

METHODS

This cross-sectional study was conducted in 5 hospitals in Tehran, Iran. Eleven variables thought to affect NSIs were categorized based on the Human Factors Analysis and Classification System (HFACS) framework and modeled using a Bayesian network. A self-administered validated questionnaire was used to collect the required data. In total, 343 cases were used to train the model and 50 cases were used to test the model. Model performance was assessed using various indices. Finally, using predictive reasoning, several intervention strategies for reducing NSIs were recommended.

RESULTS

The Bayesian network HFACS model was able to predict 86% of new cases correctly. The analyses showed that safety motivation and fatigue were the most important contributors to NSIs. Supervisors’ attitude toward safety and working hours per week were the most important factors in the unsafe supervision category. Management commitment and staffing were the most important organizational-level factors affecting NSIs. Finally, promising intervention strategies for reducing NSIs were identified and discussed.

CONCLUSIONS

To reduce NSIs, both management commitment and sufficient staffing are necessary. Supervisors should encourage nurses to engage in safe behavior. Excessive working hours result in fatigue and increase the risk of NSIs.

Summary

Citations

Citations to this article as recorded by

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