Evaluation of workers-related factors about using of hearing protection devices in textile factories, based on planned behavior theory

Noise is one of the detrimental factors of industrial health. Noise induced hearing loss is one the most occupational disease in the world. The purpose of this research was to study workers-related factors about using Hearing Protection Device (HPD) of textile factories in Yazd based on Theory of Planned Behavior (TPB). In this cross-sectional analytical study، 134 workers of textile factories in Yazd who exposed to harmful noise (over 85dB) among four factories by cluster sampling were selected. A questionnaire was designed for indirect measurement of TPB construct (behavioral belief، outcome evaluation، normative belief، motivation to comply، control belief، power of control). Validity and reliability of the questionnaire was approved. Data were analyzed using correlation coefficient and regression test. In this study 24. 1% of workers permanently used HPD and 28. 4% never use HPD. There was a significant relation between past behavior and subjective norms. TPB constructs showed 14. 9% of HPD intention variance. Only subjective norm is a significant predictor for intention to HPD using. Also intention explained 77. 9% of HPD usage behavior variance. Our results indicate that a subjective norm is the most effective antecedent in the HPD using intention. However it is recommended to designing educational program for increase HPD usage and safety behavior among workers