Dietary Quality and Subsequent Cardiovascular Disease
Summary
To examine dietary quality and subsequent cardiovascular disease (CVD).
Description
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.
Study Design
Observational Model: Natural History
Conditions
Cardiovascular Diseases
Status
Completed
Source
National Heart, Lung, and Blood Institute (NHLBI)
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00005423
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Cardiovascular Diseases
Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.
Diagnostic Techniques, Cardiovascular
Methods and procedures for the diagnosis of diseases or dysfunction of the cardiovascular system or its organs or demonstration of their physiological processes.
Death, Sudden, Cardiac
Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)
Cardiovascular Physiological Phenomena
Processes and properties of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts.
Dental Care For Chronically Ill
Dental care for patients with chronic diseases. These diseases include chronic cardiovascular, endocrinologic, hematologic, immunologic, neoplastic, and renal diseases. The concept does not include dental care for the mentally or physically disabled which is DENTAL CARE FOR DISABLED.
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