Changes in seasonal deaths from myocardial infarction
نویسندگان
چکیده
منابع مشابه
Changes in seasonal deaths from myocardial infarction.
BACKGROUND Cardiovascular disease is the major contributor to excess morbidity and mortality in winter. With the rise in temperatures through global warming, and the use of central heating and air conditioning, this seasonal variation may be declining. AIM To study possible changes in seasonal variation in case-fatality rates of myocardial infarction (MI), in men and women, over a 20-year per...
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REPLY We thank Kok, Umans, and Arnold for their statistical calculations. Indeed, a large sample size would be required to prove that there is equivalence in clinical outcome between patients directly admitted compared to transferred patients. To demonstrate that the six-month mortality rate would not exceed more than 1% (6% vs. 7%) would require a sample size of even more than 25,000 patients!...
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BACKGROUND The incidence of myocardial infarction (MI) in Norway has decreased substantially over the last two decades, according to recent publications based on data from the Norwegian Patient Registry. To better understand the development of cardiovascular disease over time we have investigated the development of MI mortality in light of the decrease in MI incidence. MATERIAL AND METHODS Da...
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ژورنال
عنوان ژورنال: QJM
سال: 2003
ISSN: 1460-2393
DOI: 10.1093/qjmed/hcg005