comparing 10-item and 60-item big five personality inventories inexplaining the depressive symptoms in patients with acutemyocardial infarction

Background: depression is one of the most probable side effects of myocardial infarction (mi) besides its sudden occurrence, and is affected by various factors, such as personality traits. objectives: hence, the present study was conducted to compare 10-item and 60-item big five inventories in explaining the symptoms of depression in patients with acute mi. methods: the study population in this cross-sectional study comprised 250 patients with mi in iran. the patients responded to 60-item neo five-factor inventory (neo-ffi), 10-item big five inventory- short version (bfi-sv), and depression subscale from depression anxiety stress scales (dass) from april to september 2018. data was analyzed using chi-square test, pearson correlation coefficient, and multiple linear regression analysis. results: patients’ meanage (69.2% males)was62.1±11.1 years. the resultsshoweda significant relationshipbetween depressionand factors of extraversion, agreeableness, and conscientiousness in bfi-sv and factors of extroversion, neuroticism, and agreeableness in neo-ffi (p< 0.05). the results of regression analysis showed that bfi-sv explained 6.7% and neo-ffi explained 5.8% of the variance of depression score (p < 0.05). conclusions: bfi-sv explains the symptoms of depression in patients with mi as much as neo-ffi. thus, the researchers can use the 10-item version to assess the personality traits of patients with mi in future studies.