TY - JOUR T1 - Structural relationship pattern design Dark Personality Traits, Optimistic Bias, and Health Beliefs to Lifestyle-Related Behavioral Changes During the Covid Pandemic 19: The Mediating Role of Health Anxiety TT - طراحی الگوی روابط ساختاری صفات تاریک شخصیت، سوگیری خوش‌بینانه و باورهای سلامتی با تغییرات رفتاری مرتبط با سبک زندگی در طولهمه‌گیری کووید 19: نقش میانجی اضطراب‌سلامت JF - Yafteh JO - Yafteh VL - 23 IS - 0 UR - http://yafte.lums.ac.ir/article-1-3291-en.html Y1 - 2021 SP - 289 EP - 303 KW - Lifestyle KW - health anxiety KW - dark personality traits KW - optimistic bias KW - health beliefs N2 - Background: Coronavirus has affected all aspects of daily life. The aim of this study was to Structural relationship pattern design Dark Personality Traits, Optimistic Bias, and Health Beliefs to Lifestyle-Related Behavioral Changes During the Covid Pandemic 19: The Mediating Role of Health Anxiety. Materials and Methods:The present research method is descriptive and correlational. The statistical population of the present study included all patients with corona heart disease who referred to Ardabil blood transfusion centers in the second half of 2020-2021 to donate plasma. a sample of 240 people were selected by convenience sampling method and answered the questionnaires of lifestyle, health anxiety, dark personality traits, optimistic bias and health beliefs. Data were analyzed using Pearson correlation coefficient and structural equation modeling using SPSS25 and Lisrel8.8 software. Results:The results showed that lifestyle-related behavioral changes were negatively correlated with dark personality traits, optimistic bias and health anxiety and positively and significantly correlated with health beliefs. Also, health anxiety has a positive relationship with dark personality traits and optimistic bias and a negative and significant relationship with health beliefs (p<0.001). Model fit indices also indicate that the model is desirable. Conclusion: According to the research results, it is recommended to hold training workshops to promote a healthy lifestyle, control stress and anxiety among people in the community, especially at-risk groups, by health policy makers such as the Corona and the Ministry of Health. M3 ER -