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Research Letter

Increased risk of acute myocardial infarction during colder periods is independent of the conventional cardiovascular risk factors: Takashima AMI Registry, Japan

Authors:

Tanvir Chowdhury Turin ,

Department of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, JP; Department of Medicine, University of Calgary, 3280 Hospital Drive N.W., Calgary, Alberta, T2N 4Z6, CA
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Yoshikuni Kita,

Department of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, JP
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Nahid Rumana,

Department of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, JP
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Yasuyuki Nakamura,

Cardiovascular Epidemiology, Kyoto Women’s University, 35 Kitahiyoshi-cho, Imakumano, Higashiyama-ku, Kyoto 605-8501, JP
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Naoyuki Takashima,

Department of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, JP
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Katsuyuki Miura,

Department of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, JP
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Hirotsugu Ueshima

Department of Health Science, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192; Lifestyle-Related Disease Prevention Center, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga 520-2192, JP
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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.

How to Cite: Turin TC, Kita Y, Rumana N, Nakamura Y, Takashima N, Miura K, et al.. Increased risk of acute myocardial infarction during colder periods is independent of the conventional cardiovascular risk factors: Takashima AMI Registry, Japan. Global Heart. 2011;6(3):109–11. DOI: http://doi.org/10.1016/j.cvdpc.2011.04.003
Published on 01 Sep 2011.

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