Related Experiment Video
Updated: Jul 26, 2025

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
A Relative Importance Index Approach to On-Site Building Construction Workers' Perception of Occupational Hazards
Maxwell Boakye1, Selase Kofi Adanu2, Christopher Adu-Gyamfi3
1Department of Environmental Science, Ho Technical University. mboakye@htu.edu.gh.
Background:
The construction industry has a percentage of work-related injuries and fatalities. Workers' perception of occupational hazards exposure can be a proactive management tool in knowing the state of construction site safety performance. This study aimed to assess the hazard perception of on-site construction workers in Ghana.
Methods:
Using a structured questionnaire, data was collected from 197 construction workers at live building sites in the Ho Municipality. The data were analyzed using the Relative Importance Index (RII) approach.
Results:
The study revealed that on-site construction workers perceived ergonomic hazards as the most frequent, followed by physical, phycological, biological, and chemical hazards. The importance level of RII revealed that long working hours and bending or twisting back during task performance were perceived as the most severe hazards. Long working hours had the highest overall RII ranking, followed by bending or twisting back during task performance, manual lifting of objects or loads, scorching temperatures, and lengthy standing for prolonged periods.
Conclusions:
Given the adverse health effects of working for long hours, the management of Ghanaian construction industries needs to reinforce the legislation on working hours to safeguard workers' occupational health. Safety professionals can use the study's findings to improve safety performance in the Ghanaian construction industry.
Related Concept Videos
The Availability Heuristic
Odds Ratio
Design Consideration
The factor of safety is another key...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Relative Risk
Survey Safety

