Fig. 1From: The influencing factors of hearing protection device usage among noise-exposed workers in Guangdong Province: a structural equation modeling-based survey(Model 1) Testing the relationship between demographics, work-related factors, hearing protection knowledge and attitudes, and HPD wearing behavior. Rectangles indicate observed variables, ellipses represent potential variables, and circles indicate residual terms. The values of single-headed arrows represent the standardized coefficients. Fine line paths indicate non-significant coefficientsBack to article page