en عمومى General مقاله اصیل Original Article <div style="text-align: justify;">Background: Dust particles are one of the most important environmental problems that are threatening many countries, and patients with cardiovascular diseases (CVDs) are a vulnerable group in this respect. The present study was conducted to examine the protective strategies among patients with CVDs against exposure to dust phenomenon based on the protection motivation theory (PMT).<br> Methods: This cross-sectional study was performed on 183 patients with CVDs who referred to health care centers in Ahvaz city, Khuzestan province, southwest of Iran. Participants were selected from patients with CVDs recruited for routine national Package of Essential Non-communicable Disease (IRA PEN) through random cluster sampling. Data were collected using a researcher-made questionnaire based on the PMT. Data were analyzed using descriptive and analytical tests such as Pearson correlation coefficient and multiple linear regressions by SPSS version 22.<br> Results: The mean scores of the constructs of perceived response efficacy (4.06 &plusmn; 20.06) and sensitivity (19.89 &plusmn; 4.30) were higher than those of other constructs. Correlation coefficient test showed a significant positive correlation between risk behaviors of exposure to dust phenomenon and self-efficacy, response efficacy and protection motivation, but negatively correlated with cost response. Also, self-efficacy variable, type of health insurance, and protection motivation were the predictive indicators of behavior.<br> Conclusion: The constructs of the PMT explained the risk reduction behaviors of exposure to dust phenomenon in patients with CVDs. Therefore, this theory can be used as a framework for designing educational programs to increase the motivation of patients with CVDs to adopt risk reduction behaviors for exposure to dust.</div> Dust, Risk reduction behavior, Motivation, Self-efficacy, Iran 1 8 http://ehemj.com/browse.php?a_code=A-10-1-198&slc_lang=en&sid=1 Nematollah Jaafarzadeh Haghighifard n.Jaafarzade@yahoo.com 10031947532846007698 10031947532846007698 No Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Mehdi Mojadam mehdi.8984@yahoo.com 10031947532846007699 10031947532846007699 Yes Corresponding author:Department of Health in Emergency and Disaster, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran Mohammad Hassan Ehrampoush ehrampoush@ssu.ac.ir 10031947532846007700 10031947532846007700 No Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran Mohammad Ali Morowatisharifabad morowatisharif@yahoo.com 10031947532846007701 10031947532846007701 No Department of Aging and Health, School of Public Health, Shahid Sadoughi University of Medical sciences, Yazd, Iran Morteza Abdullatif Khafaie khafaie2001@yahoo.com 10031947532846007702 10031947532846007702 No Environmental Technologies Research Center, Social Determinants of Health Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Hossein Fallahzadeh hofaab@yahoo.com 10031947532846007703 10031947532846007703 No Department of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran