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Increased risk of acute myocardial infarction during colder periods is independent of the conventional cardiovascular risk factors: Takashima AMI Registry, Japan |
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| Authors: | Tanvir Chowdhury Turin Yoshikuni Kita Nahid Rumana Yasuyuki Nakamura Naoyuki Takashima Katsuyuki Miura Hirotsugu Ueshima |
| Affiliation: | aDepartment of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, Japan;bDepartment of Medicine, University of Calgary, 3280 Hospital Drive N.W., Calgary, Alberta, Canada T2N 4Z6;cCardiovascular Epidemiology, Kyoto Women’s University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto 605-8501, Japan;dLifestyle-Related Disease Prevention Center, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, Japan |
| Abstract: | We investigated the association of the variability of acute myocardial infarction (AMI) occurrences between warm and colder periods and the conventional cardiovascular risk-factors. For the registered 429 first-ever-AMI event, the odd of suffering an AMI during the colder period was significantly higher (OR 1.47, 95%CI: 1.21–1.78). None of the conventional cardiovascular risk factors explains the excess risk of AMI during the colder period pointing towards the influence of AMI triggering factors in the time preceding onset of AMI irrespective of presence or absence of cardiovascular risk-factors. |
| Keywords: | Acute myocardial infarction Colder period Cardiovascular risk factor |
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