clinical manifestation of acute myocardial infarction: classified by age and gender

Background: the purpose of the study was to evaluate clinical manifestations of acute myocardial infarction as classified by age and gender. methods: this cross sectional study was conducted in a coronary care unit of a regional urban medical center in northern iran (amol). a total of 366 patients diagnosed with acute myocardial infarction were recruited from january to june 2013. patient demographic information, past medical history, and current symptom data were collected. results: multivariate logistic analyses were performed to identify risk predictors of myocardial infarction patients classified by age and gender. risk predictors for older patients were dyspnea, or = 1.76 (95% ci 1.01, 3.06), weakness odds ratio = 2.35 (95% ci 1.31, 4.21), nausea odds ratio = 1.83 (95% ci 1.04, 3.20), vomiting odds ratio = 2.48 (95% ci 1.34, 4.57), fatigue odds ratio=1.87 (95% ci 1.02, 3.39), belching, odds ratio = 2.13 (95% ci 1.08, 4.20), and hiccups odds ratio = 2.81 (95% ci 1.25, 6.30). sub group analysis in older women patients identified weakness odds ratio = 3.13 (95% ci 1.11, 8.85), and belching odds ratio = 34.70 (95% ci 3.86, 312.2) as risk predictors. among older men patients, the predominant symptoms were sweating odds ratio = 3.74 (95% ci 1.06, 13.2) and vomiting odds ratio = 2.54 (95% ci 1.10, 5.91). conclusions: this study concludes that older acutemyocardial infraction patients were more likely to have non-specific symptoms. initial assessment for acute myocardial infarction should consider the possibility of non-specific clinical manifestations, such as weakness and belching in older women, and sweating and vomiting in older men.