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    Recent changes in attack and survival rates of acute myocardial infarction (1975 through 1981). The Worcester Heart Attack Study

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    Authors
    Goldberg, Robert J.
    Gore, Joel M.
    Alpert, Joseph S.
    Dalen, James E.
    UMass Chan Affiliations
    Department of Medicine, Division of Cardiovascular Medicine
    Document Type
    Journal Article
    Publication Date
    1986-05-23
    Keywords
    Adult
    Age Factors
    Aged
    Electrocardiography
    Female
    Hospitalization
    Humans
    Male
    Massachusetts
    Middle Aged
    Myocardial Infarction
    Prognosis
    Time Factors
    Bioinformatics
    Biostatistics
    Epidemiology
    Health Services Research
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    Link to Full Text
    http://jama.ama-assn.org/cgi/content/abstract/255/20/2774
    Abstract
    A communitywide study was conducted in all 16 acute general hospitals in the metropolitan Worcester, Mass, area during the calendar years 1975, 1978, and 1981 to examine time trends in the attack and case-fatality rates of patients hospitalized with validated acute myocardial infarction as well as of the occurrence of out-of-hospital coronary heart disease (CHD) deaths. Between 1975 and 1981, there was an increase in the age-adjusted attack rates of initial events of acute myocardial infarction (1975, 254/100,000; 1981, 280/100,000) as well as recurrent events (1975, 133/100,000; 1981, 156/100,000). These overall increases were due to an increase among those 65 years of age and older, with no significant changes observed in those less than 65 years old. The age-adjusted in-hospital case-fatality rates declined from 22.1% in 1975 to 20.3% in 1978 and 17.4% in 1981. In examining long-term prognosis, no significant differences were seen over an eight-year follow-up period between patients discharged in 1975, 1978, and 1981. The age-adjusted mortality rates of out-of-hospital CHD deaths significantly declined between 1975 (229/100,000) and 1981 (147/100,000). The results of this population-based survey suggest that recently observed declines in the mortality rates of CHD may reflect decreases in out-of-hospital coronary deaths and improving trends in the in-hospital survival of patients with acute myocardial infarction.
    Source
    JAMA. 1986 May 23-30;255(20):2774-9.
    Permanent Link to this Item
    http://hdl.handle.net/20.500.14038/47054
    PubMed ID
    3701991
    Related Resources
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    Population and Quantitative Health Sciences Publications

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