Dietary Quality and Subsequent Cardiovascular Disease

This study has been completed.
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
ClinicalTrials.gov Identifier:
NCT00005423
First received: May 25, 2000
Last updated: June 23, 2005
Last verified: April 2002

May 25, 2000
June 23, 2005
July 1992
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Complete list of historical versions of study NCT00005423 on ClinicalTrials.gov Archive Site
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Dietary Quality and Subsequent Cardiovascular Disease
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To examine dietary quality and subsequent cardiovascular disease (CVD).

BACKGROUND:

Although considerable evidence exists for associations between diet and subsequent cardiovascular disease (CVD) among younger and middle-aged adults, no comprehensive studies of these relationships have been conducted using a national sample of older Americans. National guidelines have recommended reductions of dietary fat, saturated fat, cholesterol and sodium as dietary practice to reduce CVD. However, it is possible that the focus on eliminating dietary components may obscure the advantages of consuming diets that are nutritionally adequate.

Findings from this study could have important implications for setting research priorities to further study the effects of specific dietary variables on CVD, and for implementing national nutrition policies to assist Americans in selecting healthy diets.

DESIGN NARRATIVE:

Data from NHANES I and the three cycles of NHANES I Epidemiologic Followup Study (NHEFS) were used to 1) to examine the associations between several measures of dietary quality at baseline and subsequent 14-year morbidity and mortality from CVD for a national sample of 6109 United States adults aged 45 to 74 years at baseline; 2) to assess the relative importance of the associations of dietary quality and CVD for older adults compared to middle-aged adults. Dietary variables were based on responses to the 24-hour dietary recall and the food frequency questionnaire administered at baseline and included a composite measure of dietary quality, intakes of specific nutrients, and usual consumption of foods from 19 food groups. Baseline measures used as covariates included body mass index, blood pressure, serum cholesterol, sociodemographic variables (e.g., age, race, income, occupation), behavioral variables (e.g., smoking, alcohol consumption, activity level), and chronic health conditions. CVD outcomes were determined from medical history questionnaires, hospital records and death certificates. Change in blood pressure between baseline and 10-year followup were examined as an outcome variable as well as a covariate in the association between diet and CVD.

Observational
Observational Model: Natural History
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  • Cardiovascular Diseases
  • Heart Diseases
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
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December 1994
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No eligibility criteria

Male
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No
Contact information is only displayed when the study is recruiting subjects
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NCT00005423
4341
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National Heart, Lung, and Blood Institute (NHLBI)
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National Heart, Lung, and Blood Institute (NHLBI)
April 2002

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP