Predictive Factors of Recurrent Heart Attack in Patients with Myocardial Infarction: a comprehensive study of various factors

Myocardial infarction (MI) is one of the most common presentations of coronary artery diseases that the age of its prevalence is decreasing. Survivors of MI are at an increased risk of the recurrence of the disease. This study aimed to determine the frequency of recurrent MI and its ppredictive factors in patients with MI. This descriptive cross-sectional study was conducted on 398 patients with MI referred to Dr. Heshmat hospital in Rasht, the exclusive heart center in Guilan province (north of Iran). Convenience sampling method was used and a valid six-part questionnaire including demographic information, patient's desire to improve knowledge, adherence to the Mediterranean diet, patients' awareness of factors predisposing to re-MI, depression status, and adherence to the therapeutic regimen was employed to collect data. The data were analyzed using descriptive statistics and analytical statistics in SPSS21 at the significance level of P≤ 0.05. The results of the Logistic regression analysis performed by LR method indicated illness duration (OR=0.97, 95% CI=0.95-0.99), history of receiving education (OR=0.1, 95% CI=0.02–0.7), MI type (OR=0.04, 95% CI=0.01–0.34 and OR=0.006, 95% CI=0.001–0.1, respectively for Ant-MI and Post-MI than non-ST-elevation MI) and level of patients' awareness of predisposing factors to MI occurrence (OR=7.31, 95% CI=1.17–45.71, moderate level than good level) as predictors of re-MI. The findings of this study urges policymakers and planners to consider the necessity of applying educational programs related to factors affecting the recurrence of MI.