Document Type : Original Article


1 Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

2 Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Department of Environmental Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran

3 Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran, Department of Health Education and Health Promotion, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran

4 Social Determinants of Health Research Center, Mashhad iran Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran


BACKGROUND: Working conditions play a significant role in the process that causes cardiovascular 
disease. In this regard, it is required to monitor the health conditions of workers to design proper 
interventions to encourage healthy behaviors. This investigation was performed to determine 
preventive behaviors against cardiovascular disease based on the health belief model (HBM).
MATERIALS AND METHODS: This research was a cross‑sectional and descriptive study with 228 
subjects of oil industry workers under shift work schedules in the oil regions of Khuzestan, Iran. The 
HBM questionnaire provided the theoretical framework for this study. Participants completed the 
questionnaires in person at work. Data were analyzed using SPSS 24.0. Descriptive statistics including 
frequencies, percentages, and means, and linear regression analysis were calculated for variables.
RESULTS: Findings of the study showed that most workers were of a weak level of knowledge (55.3%), 
self‑efficacy (82.5%), perceived severity (83.8%), perceived susceptibility (75.4%), perceived 
benefit (57.5%), and behavior (82.5%). Furthermore, results showed that most of the workers 
considered smoking (3.51 out of 5) and proper diet for good heart function (2.54 out of 5). In this study, 
the item of exercise was the lowest among all the preventive behaviors (1.39 out of 5). Self‑efficacy 
was the strongest predictor of health belief about cardiovascular disease.
CONCLUSION: To decrease the increasing burden of cardiovascular disease in our population, and 
fight against this rank‑one killer, multiple useful prevention strategies must be adopted. Educational 
theory‑based interventions and applying designed programs to improve the adoption of preventive 
behaviors are a necessity.


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