Association of Climate with Acute Myocardial Infarction Hospitalizations

Introduction: Regarding the association between climate, seasons and myocardialinfarction, a cross-sectional study was carried out in Shiraz and Bandar Abbas in Iran.Methods: All patients with diagnosis of acute myocardial infarction living in Shiraz andBandar Abbas were included in the study during 2011-2013. Demographic data wereextracted from the patients’ hospital records. Data were analyzed using descriptivestatistics, student’s t-test, and Chi-square test with SPSS software.Results: A total of 2626 patients were admitted with acute myocardial infarction of which1546 were from Shiraz and 1080 from Bandar Abbas. Admission rate due to myocardialinfarction was 0.12 in Shiraz and 0.24 in Bandar Abbas. In Shiraz, 35.2% of the patientswere female and in Bandar Abbas 34% Mean age of female patients was 65.68 years inShiraz and 62.46 in Bandar Abbas while mean age of male patients in Shiraz was 60.39years and 57.22 years in Bandar Abbas. Difference in admissions rates in 4 seasons wasstatistically significant in Shiraz, but not significant in Bandar Abbas. Seasonal variation ofmyocardial infarction had no correlation with gender or age of the patients.Conclusion: Incidence of myocardial infarction in Shiraz was half of the incidence rate inBandar Abbas. During summer in low altitude humid areas, extra healthcare should beprovided to high risk patients with coronary artery diseases, whereas this caution shouldbe taken in high altitude areas with cold winter to minimize incident of myocardialinfarction.

کلیدواژه ها:

Myocardial Infarction ، Humidity ، Seasons ، Altitude