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        <r:String xml:lang="sv">SHEEP - Stockholm Heart Epidemiology Program</r:String>
        <r:String xml:lang="en">SHEEP - Stockholm Heart Epidemiology Program</r:String>
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          <r:String xml:lang="sv">Karolinska Institutet</r:String>
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          <r:String xml:lang="sv">Karolinska Institutet</r:String>
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        <r:SimpleDate>2016-08-26</r:SimpleDate>
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      <r:Content xml:lang="sv">SHEEP (Stockholm Heart Epidemiology Program) är en befolkningsbaserad fall-kontrollstudie av riskfaktorer för förstagångs hjärtinfarkt hos män och kvinnor i åldern 45-70 år boende i Stockholms län. Information om exponering för olika riskfaktorer samlades in genom enkäter och telefonintervjuer. För avlidna fall besvarades enkäten av en nära anhörig. Totalt 5452 individer inkluderades: 2246 fall och 3206 kontroller. 
Det gjordes också hälsokontroller. De kvinnliga fallen besvarade också en enkät om hormonell exponering. Svarsfrekvensen bland fallen var 80 % och bland kontrollerna 73 %. Svarsfrekvensen var högre bland kvinnor än bland män. Data baserat på både enkäter och hälsoundersökning finns tillgängligt från de överlevande fallen för 78% av männen och 67% av kvinnorna; motsvarande siffror för kontrollerna är 68% respektive 64%.
SHEEP har använts för att studera riskfaktorer för hjärtinfarkt i en mängd olika projekt, avslutade och pågående.

Syfte:

Att testa hypoteser gällande potentiella riskfaktorer för förstagångsfall av akut hjärtinfarkt.
Att jämföra effekterna av riskfaktorer/exponering mellan kvinnor och män.
Att identifiera och utvärdera möjliga effektmodifieringar mellan olika riskfaktorer.</r:Content>
      <r:Content xml:lang="en">SHEEP (the Stockholm Heart Epidemiology Program) is a population based case-referent study of risk factors for first episode of acute myocardial infarction in women and men in the ages 45-70 years living in the Stockholm County. Exposure information was collected by a questionnaire and a health examination including blood sampling. A large number of potential risk factors were included in the questionnaire items and comprised occupational, social, as well as life style or individual factors. A total of 5452 subjects were included in SHEEP: 2246 cases and 3206 referents. The response rate was higher among men than among women. Exposure information based on both the questionnaire and biological data from the health examination was available for 78% of the male and 67% of the female non-fatal cases; the corresponding figures for their referents were 68% and 64%.

Purpose:

To simultaneously test several hypotheses concerning potential risk factors for acute myocardial infarction, first event.
To compare the effect of different risk factors/exposures between women and men.
To identify and evaluate potential effect modification between different risk factors.</r:Content>
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