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Red Meat, Increased Iron Load and CVD Risk

14. juli 2017 opdateret af: German Cancer Research Center

Red Meat Consumption and Risk of Cardiovascular Diseases - is Increased Iron Load a Possible Link?

Increased iron load could be a risk factor for cardiovascular diseases (CVD). Red meat consumption affects iron status and has also been shown to be related to increased CVD risk. The investigators hypothesized that risk associations between red meat intake and cardiovascular disease risk can to some degree be explained by higher iron load among individuals with higher meat intake. Thus, the investigators evaluate associations between red meat consumption, iron status, and CVD risk in a large-scale population based study, the European Prospective Investigation into Cancer and Nutrition (EPIC) - Heidelberg.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The present study part of the the European Prospective Investigation into Cancer and Nutrition (EPIC) - Heidelberg, a large-scale observational cohort study located at the German Cancer Research Center, Heidelberg, Germany. The study started between 1994 and 1998, when 25 540 adults from the local general population were recruited. Study participants are being followed-up by active and passive procedures. The main aim of the study is to evaluate associations between diet, lifestyle as well as metabolism and risks of major chronic diseases (cancer, cardiovascular diseases, diabetes).

Here, the investigators register a project from within EPIC-Heidelberg on prediagnostic iron status as a potential mediator of associations between pre-diagnostic red meat consumption and cardiovascular disease risk. For this particular project, an embedded case-cohort set-up was chosen, i.e. iron status markers (primary marker: serum ferritin; secondary markers: serum transferrin, serum iron) were measured in baseline blood samples from a random subcohort (n=2738) and all validated incident cases of myocardial infarction (n=556), stroke (n=513), and CVD death (n=327) that occured until the closure date of the present study (12-31-2009).

Statistical analyses follow four steps to assess whether iron status may mediate associations between red meat consumption and CVD risk, as proposed by Wittenbecher et al. (Am J Clin Nutr, 2015: www.ncbi.nlm.nih.gov/pubmed/25948672):

  1. Multivariable Cox regression analyses on red meat consumption and CVD risk, assuming a significant positive association
  2. Multivariable linear regression analyses on red meat consumption and iron status, assuming a significant positive association
  3. Multivariable Cox regression analyses on iron status and CVD risk, assuming a significant positive association
  4. Multivariable Cox regression analyses on red meat consumption and CVD risk, additionally adjusting for iron status, assuming that the association will be attenuated by adjustment for iron status

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

25540

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Tyskland
      • Heidelberg, Tyskland, 69120
        • German Cancer Research Center

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

35 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

N/A

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

EPIC-Heidelberg was launched as part of EPIC-Europe between 1994 and 1998, when 13 611 female and 11 929 male participants aged 35 to 65 years were recruited from the local general population.

Beskrivelse

Inclusion Criteria:

General population, age 35-65 years

Exclusion Criteria:

Prevalent myocardial infraction or stroke

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: Kohorte
  • Tidsperspektiver: Fremadrettet

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Random Subcohort
Random subcohort (~10 % of the initial cohort, study has a case-cohort design; details on the case-cohort design have been described by Kulathinal et al., Epidemiol Perspect Innov, 2007: www.ncbi.nlm.nih.gov/pmc/articles/PMC2216006/).
Andet: No intervention assigned, this is an observational study.
No intervention assigned, this is an observational study.
Incident CVD Cases
Validated incident cases of myocardial infarction, stroke and CVD death that occured until Dec-31-2009 (details on the case-cohort design have been described by Kulathinal et al., Epidemiol Perspect Innov, 2007: www.ncbi.nlm.nih.gov/pmc/articles/PMC2216006/).
Andet: No intervention assigned, this is an observational study.
No intervention assigned, this is an observational study.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Myocardial infraction
Tidsramme: 1994 - 2009
Incident cases of primary myocardial infarction according to clinical records
1994 - 2009
Stroke
Tidsramme: 1994 - 2009
Incident cases of primary stroke according to clinical records
1994 - 2009
Cardiovascular death
Tidsramme: 1994 - 2009
Incident cases of cardiovascular death according to death certificates
1994 - 2009

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

German Cancer Research Center

Efterforskere

  • Ledende efterforsker: Rudolf Kaaks, Prof., German Cancer Research Center

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. september 1994

Primær færdiggørelse (Faktiske)

31. december 2009

Studieafslutning (Faktiske)

31. december 2009

Datoer for studieregistrering

Først indsendt

13. juli 2017

Først indsendt, der opfyldte QC-kriterier

13. juli 2017

Først opslået (Faktiske)

14. juli 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

18. juli 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. juli 2017

Sidst verificeret

1. juli 2017

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • DKFZ Study_ID 905

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

Ingen

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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