Mediation and moderation of an educational intervention for improving intention to practise pneumoconiosis prevention among South Asian construction workers

Abstract

Objective: To examine components of the Health Belief Model (HBM) as mediators and socio-demographic characteristics as moderators of the effects of an educational intervention on intention to practise pneumoconiosis prevention among South Asian construction workers. Methods: The study used a one-group pretest and posttest design. Analytic data was from 1001 South Asian construction workers in Hong Kong. Results: Changes in the perceived susceptibility, perceived severity, perceived benefits, cues to action, and self-efficacy mediated the intervention s efficacy in improving intention to practise pneumoconiosis prevention. The intervention was more effective in reducing perceived barriers in younger workers, enhancing selfefficacy in older workers and relatively new employees, and improving the intention in unmarried workers. Conclusions: It provided preliminary support for the efficacy of the intervention based on the HBM in improving intention to practise pneumoconiosis prevention among South Asian construction workers.