The impact of ambient temperature on acute myocardial infarction admissions in Tehran, Iran

Mohammadi, Rasool and Soori, Hamid and Alipour, Abbas and Bitaraf, Ehsan and Khodakarim, Soheila (2018) The impact of ambient temperature on acute myocardial infarction admissions in Tehran, Iran. JOURNAL OF THERMAL BIOLOGY, 73. pp. 24-31.

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Abstract

While the effect of temperature on risk of cardiovascular events is well documented, few studies report evidence from the Middle East. In this study, we investigate the short-term effect of ambient temperature on admissions for acute myocardial infarction (AMI) in Tehran, Iran. We used a case-crossover design combined with a distributed lag non-linear model to examine nonlinear and delayed associations between ambient temperature and AMI admissions from 2013 to 2016. We also examined hot and cold effects on AMI admission by gender and age categories (<= 65 years old and > 65 years old). Both hot and cold temperatures increased the risk of AMI admissions. Effects of high temperature appeared immediately on the current day and lasted for 3 days, whereas cold effects became apparent after 2 days and persisted for about 8 days. The early acute increase in risk associated with high temperature was followed by a deficit, thus suggesting evidence of a harvesting effect. In additions, males and those aged <= 65 years old were more vulnerable to high temperatures.

Item Type: Article
Subjects: R Medicine > R Medicine (General)
Divisions: Faculty of Medicine, Health and Life Sciences > School of Medicine
Depositing User: sobhan rezaiian
Date Deposited: 07 May 2018 04:12
Last Modified: 07 May 2018 04:13
URI: http://eprints.lums.ac.ir/id/eprint/1249

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