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        <titl xml:lang="sv">Primärpreventiva studien</titl>
        <parTitl xml:lang="en">The primary prevention study</parTitl>
        <IDNo agency="SND">snd0011-1-1</IDNo>
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        <producer xml:lang="en" abbr="SND">Swedish National Data Service</producer>
        <producer xml:lang="sv" abbr="SND">Svensk nationell datatjänst</producer>
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      <titlStmt>
        <titl xml:lang="sv">Primärpreventiva studien</titl>
        <parTitl xml:lang="en">The primary prevention study</parTitl>
        <IDNo agency="SND">snd0011-1-1</IDNo>
      </titlStmt>
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        <AuthEnty xml:lang="en" affiliation="Department of Emergency and Cardiovascular Medicine, University of Gothenburg">Rosengren, Annika</AuthEnty>
        <AuthEnty xml:lang="sv" affiliation="Avdelningen för akut och kardiovaskulär medicin, Göteborgs universitet">Rosengren, Annika</AuthEnty>
        <AuthEnty xml:lang="en" affiliation="Department of Emergency and Cardiovascular Medicine, University of Gothenburg">Wilhelmsen, Lars</AuthEnty>
        <AuthEnty xml:lang="sv" affiliation="Avdelningen för akut och kardiovaskulär medicin, Göteborgs universitet">Wilhelmsen, Lars</AuthEnty>
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        <distrbtr xml:lang="en" abbr="SND" URI="https://snd.se">Swedish National Data Service</distrbtr>
        <distrbtr xml:lang="sv" abbr="SND" URI="https://snd.se">Svensk nationell datatjänst</distrbtr>
        <distDate xml:lang="en" date="2011-01-01" />
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        <serName xml:lang="en" abbr="cohortsse">Swedish Cohort Consortium (Cohorts.se)</serName>
        <serInfo xml:lang="en">The Swedish Cohort Consortium (Cohorts.se) is a project aimed at improving management and increasing the use of Swedish population-based cohorts (research databases with sensitive person data) for world-leading research. Coordination of all Swedish prospective population-based cohorts in a common infrastructure will enable more precise research findings and facilitate research on rare diseases and exposures, leading to better utilization of study participants’ data, better return of funders’ investments, and higher benefit to patients and populations. Cohorts.se will support some aspects of single cohort operations and all aspects of collaborations between cohorts. Important components of the infrastructure involve data curation and management, cataloguing of variables, presentation of and access to data, harmonization of variables for research projects, linkage of cohorts and official registries, and statistical analysis including a novel method for distributed data analysis eliminating the need to share data. The project aims to increase collaboration between Swedish universities and with international cohort consortia, and to be a node for researchers who want to collaborate, perhaps extra important for young researchers without a large contact network. SND collaborates with Cohorts.se. Partly through training of data managers and statisticians in the Maelstrom system (maelstrom-research.org), which is tailored for cohort collaboration and will be used in this infrastructure; partly through collaboration around logistics by forwarding researchers seeking access to person data from cohorts to Cohorts.se and the Maelstrom repository.

Contact for Cohorts.se:
Johan Sundström, Professor at UCR-Uppsala Clinical Research center
johan.sundstrom@ucr.uu.se</serInfo>
        <serInfo xml:lang="sv">The Swedish Cohort Consortium (Cohorts.se) är ett projekt som syftar till att förbättra förvaltningen och öka utnyttjandet av svenska populationsbaserade kohorter (forskningsdatabaser med känsliga individdata) för världsledande forskning. Genom samutnyttjande av många kohorter kan vi skapa säkrare forskningsresultat till bättre nytta för patienter och allmänhet. Infrastrukturen kommer att omfatta kohorter med känsliga individdata och metadata, mjukvara, och servicetjänster. Infrastrukturen kommer att kurera data, katalogisera kohorter, förvalta kohorter, administrera datauttag och -insättningar och länkningar till andra register, harmonisera variabler vid sammanläggningsprojekt, genomföra statistisk analys, och genomföra utbildningsinsatser. Långsiktig professionell kohortförvaltning som inte är personberoende ger ökad säkerhet och kvalitet. Uniform katalogisering och dokumentation och uniforma uttagsprocesser ger ökad tillgänglighet. Infrastrukturen ger ökat utnyttjande av redan insamlade kohorter, och därmed ökat värde för skattebetalarnas grundinvesteringar i kohorterna. Infrastrukturen kan öka samarbeten mellan svenska lärosäten och med internationella kohortkonsortier, och den kan vara en nod för forskare som vill samarbeta, kanske extra viktigt för unga forskare utan stort kontaktnät. SND samarbetar med Cohorts.se. Dels genom utbildning av data managers och statistiker i den för ändamålet designade mjukvara som framförallt används i infrastrukturen, Maelstrom (maelstrom-research.org). Dels genom att forskare som vill ha tillgång till individdata från kohorter lotsas vidare från SND till Cohorts.se och Maelstrom-katalogen.

Kontaktperson Cohorts.se:
Johan Sundström, Professor vid Institutionen för medicinska vetenskaper, Uppsala universitet
johan.sundstrom@ucr.uu.se</serInfo>
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      <subject>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D010808">Physical Examination</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D010808">Hälsokontroll</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D001823">Body Composition</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D001823">Kroppssammansättning</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D004562">Electrocardiography</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D004562">Elektrokardiografi</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D006333">Heart Failure</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D006333">Hjärtsvikt</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D008137">Longitudinal Studies</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D008137">Longitudinella studier</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D015444">Exercise</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D015444">Träning</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D011159">Population Surveillance</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D011159">Populationsövervakning</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012959">Socioeconomic Factors</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012959">Socioekonomiska faktorer</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D004358">Drug Therapy</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D004358">Läkemedelsterapi</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012307">Risk Factors</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012307">Riskfaktorer</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D008875">Middle Aged</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D008875">Medelålders personer</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D050177">Overweight</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D050177">Övervikt</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009026">Mortality</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009026">Dödlighet</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009203">Myocardial Infarction</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009203">Hjärtinfarkt</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D020521">Stroke</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D020521">Stroke</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D008487">Medical History Taking</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D008487">Anamnes</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D001786">Blood Glucose</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D001786">Blodsocker</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003920">Diabetes Mellitus</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003920">Diabetes</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D004813">Epidemiology</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D004813">Epidemiologi</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009765">Obesity</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009765">Fetma</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D002318">Cardiovascular Diseases</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D002318">Kardiovaskulära sjukdomar</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D006262">Health</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D006262">Hälsa</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D006973">Hypertension</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D006973">Högt blodtryck</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D007328">Insulin</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D007328">Insulin</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003069">Coffee</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003069">Kaffe</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D002784">Cholesterol</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D002784">Kolesterol</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003327">Coronary Disease</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003327">Kranskärlssjukdom</keyword>
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        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D001827">Kroppslängd</keyword>
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        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D001835">Kroppsvikt</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D000787">Angina Pectoris</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D000787">Kärlkramp</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012907">Smoking</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012907">Rökning</keyword>
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        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D009017">Morbidity</keyword>
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        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D003695">Leverans av hälso- och sjukvård</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D013315">Stress, Psychological</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D013315">Psykologisk stress</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012893">Sleep Wake Disorders</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D012893">Sömn- och vakenhetsstörningar</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D014280">Triglycerides</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D014280">Triglycerider</keyword>
        <keyword xml:lang="en" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D040941">Heredity</keyword>
        <keyword xml:lang="sv" vocab="MeSH" vocabURI="http://id.nlm.nih.gov/mesh/D040941">Ärftlighet</keyword>
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        <topcClas xml:lang="sv" vocab="CESSDA Topic Classification" vocabURI="https://vocabularies.cessda.eu/vocabulary/TopicClassification?code=Health">HÄLSA</topcClas>
      </subject>
      <abstract xml:lang="en" contentType="abstract">The Primary Prevention Trial in Goteborg is a multifactorial intervention programme on coronary heart disease, stroke incidence and total mortality. The study is administered by the Section for Preventive Cardiology, Institution of Medicine, University of Gothenburg. 

The study started in 1970. The intervention group consisted of 10 004 men. Two control groups were of similar size. The participants were all men in Gothenburg born in 1915-1922 and 1924-1925.  

The first examined group was men born in 1915 and the first screening was completed 1973 with those born in 1925. A second examination started in 1974 and was completed in early spring 1977, and the final examination was performed ten years after the first one, that is between 1980 and 1983. The participants were 47-55 years of age when the study started, and accordingly 57-65 years of age at the final examination. Participation rate at the first screening examination was 75% (n=7495). The intervention group and a 2% sample of the control group 1 received an illustrated postal questionnaire dealing with family history of heart disease and stroke, the subject's own heart symptoms, known hypertension, smoking habits, physical activity during work and leisure time, and stress. Subjects of the intervention group and the 2% sample of control group 1 were invited to a screening examination at which height, weight, total serum cholesterol, blood pressure, ECG, and some interview responses were recorded. In the control groups no further action was taken. Treatment of the risk factors of elevated serum cholesterol, elevated blood pressure and smoking was given for subjects in the intervention group. The whole intervention group was invited for a second examination. The effects of the intervention on risk factors were measured in all participants of the intervention group (n=7517), and in an 11% random sample of control group 1 (n=826) four years after they entered the study. Ten years after entry new 20% random samples of the intervention group and control group 1 were invited. Of these, 1473 in the intervention group and 1404 in control group 1 participated in the investigations.
Data from the intervention group are available from SND.

The purpose of the study was to:
1 - to analyse the extent to which it was possible to induce changes in risk factors in a randomly selected population sample of middle-aged Swedish men by means of a population-based intervention programme which could be managed by a limited number of physicians and paramedical personnel.   2 - to measure the effect of this intervention programme on the incidence of non-fatal and fatal myocardial infarction, stroke and the total death rate in the intervention group compared with two control groups also randomly selected from the general population.</abstract>
      <abstract xml:lang="sv" contentType="abstract">Primärpreventiva studien i Göteborg är ett multifaktoriellt interventionsprogram för koronar hjärtsjukdom, stroke och total dödlighet. Studien administreras av Sektionen för Preventiv Kardiologi vid Östra Sjukhuset, Institutionen för Medicin, Göteborgs Universitet. 

Studien startade 1970. Interventionsgruppen bestod av 10 004 män. Två kontrollgrupper var av samma storlek. Studiedeltagarna var alla män i Göteborg födda 1915-1922 och 1924-1925. Den första gruppen som undersöktes var män födda 1915 och den första screeningen avslutade 1973 med männen födda 1925. En andra undersökningsomgång startade 1974 och avslutades 1977,och en sista omgång genomfördes tio år efter den första, 1980 till 1983. Deltagarna var 47-55 år då studien började och 57-65 år vid den avslutande undersökningen. Deltagarfrekvensen var 75% (n=7495).  

Interventionsgruppen och ett urval på 2% av kontrollgrupp 1 mottog ett frågeformulär om familjehistorik angående hjärtsjukdom och stroke, subjektiva hjärtsymptom, hypertention, rökvanor, fysisk aktivitet på arbete och fritid samt stress. Det genomfördes också en undersökning där vikt, längd, total serum-kolesterol, blodtryck, EKG, samt en intervju ingick. I kontrollgruppen vidtogs inga ytterligare åtgärder. Deltagarna i interventionsgruppen fick behandling för riskfaktorerna högt serum-kolesterol, högt blodtryck och rökning. Effekten av interventionen mättes i alla deltagarna i interventionsgruppen (n=7517), och i ett slumpvis urval på 11% av kontrollgrupp 1 (n=826) fyra år efter att de gick med i studien. 

Tio år efter inträdet i studien inviterades ett nytt urval på 20% av interventionsgruppen och kontrollgrupp 1 till undersökning. Av dessa kom 1473 personer från interventionsgruppen och 1404 från kontrollgrupp 1.
Data även för interventionsgruppen finns hos SND.

Syftet med studien var
1 - att analysera i vilken utsträckning det var möjligt att åstadkomma förändringar av riskfaktorer i en slumpvis utvald population av medelålders svenska män med hjälp av ett populationsbaserad interventionsprogram som kan hanteras av ett begränsat antal läkare och paramedicinsk personal.   2 - att mäta effekten av interventionsprogrammet på förekomsten av icke-dödlig och dödlig hjärtinfarkt och stroke samt den totala dödligheten i interventionsgruppen jämfört med två kontrollgrupper också slumpmässigt utvalda från den allmänna befolkningen.</abstract>
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        <nation xml:lang="sv" abbr="SE">Sverige</nation>
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