Long-Term Predictors of Morbidity in Older Age

2014-07-23 21:51:52 | BioPortfolio


To use existing longitudinal data from the Chicago Heart Association and Western Electric Company studies to examine adiposity in relation to heart failure, multimorbidity and to examine heart rate in relation to incident diabetes.



Obesity is reaching epidemic proportions in the U.S. with over 50 percent of the adult population either overweight or obese. Obesity has been studied extensively as a risk factor for coronary heart disease and stroke, but has received less attention as a risk factor for congestive heart failure (CHF). Another area of limited investigation is the study of risk factors for multi morbidity, i.e. the occurrence of several morbid events at the same time, which is very common in older adults. Other areas of investigation in this study are possible associations between each of heart rate and dietary patterns with the development of diabetes. The Chicago Heart Association Detection Project and the Western Electric studies, both supported by the National Heart, Lung, and Blood Institute, are resources to study the above associations. Multiple measures of obesity are available at several different time points and follow-up data are available for 30-40 years which should increase the power of the study.

Data to be used for this project include baseline data collected in 1967-73 from 39,522 subjects from the Chicago Heart Association Study (CHA) and baseline and annual follow-up data from the Western Electric Study collected from 1957-1966 consisting of 2107 men, age 40-55 years in the Chicago area. Mortality follow-up for those 2 cohorts is accomplished via the National Death Index. Morbidity follow-up is accomplished by record linkage with Medicare files and to some extent by followup questionnaires for disease outcomes although the follow-up rate for the latter approach is only about 60 percent.


The study uses extensive existing data from the Chicago Heart Association (CHA) [20,854 men and 16,049 women aged 18-64 at baseline (1967-73)] and Western Electric (WE) [2,107 men aged 40- 55 at baseline (1957-58)] that include four comprehensive sources of outcomes: 1) mortality data from long-term follow-up; 2) morbidity and other data from Medicare claims for 19 years from 1984 to 2000; 3) multiple health questionnaires (CHA); and 4) repeated measures of adiposity from 8 annual re-examinations after baseline (WE). The study addresses the following specific aims: 1) to investigate in-depth the longitudinal associations of adiposity as assessed by several indices (body mass index, weight gain, subscapular and triceps skinfolds, and derived percent body fat) during young adulthood and middle age with mortality and morbidity from congestive heart failure later in life; 2) to delineate the relationships of adiposity assessed earlier in life with older-age multimorbidity, the coexistence of multiple pathological conditions of varying severity -- a very common but under-studied phenomenon among older adults; 3) to examine in-depth the associations of heart rate and changes in heart rate with incident diabetes, stratified by obesity status at baseline. As an exploratory aim, the study will assess whether a) higher fruit and vegetable and lower sugar intake; and b) higher dairy and calcium intake are associated with lower adiposity, smaller weight gain, and lower incidence of diabetes.

Study Design



Cardiovascular Diseases




National Heart, Lung, and Blood Institute (NHLBI)

Results (where available)

View Results


Published on BioPortfolio: 2014-07-23T21:51:52-0400

Clinical Trials [1246 Associated Clinical Trials listed on BioPortfolio]

Cardiovascular Diseases in HIV-infected Subjects (HIV-HEART Study)

Human immunodeficiency virus (HIV) infection has been associated with a variety of cardiovascular diseases. Even most industrialised countries exhibit a growing and aging population of HIV...

The Effects of Aerobic Exercise in Microvascular Endothelium Function in Patients With Cardiovascular Diseases

This study evaluates the effects of different volumes of aerobic exercise training in cardiovascular parameters of patients with cardiovascular diseases enrolled in a cardiac rehabilitatio...

ARROW:identificAtion of postpRandial biomaRkers tOWards Cardiovascular Prevention

The purpose of this study is to better understand the association between the postprandial biomarker responses after a food challenge with the development of cardiovascular diseases in hea...

Development, Testing, and Validation of A Protocol To Assess Cardiovascular Reactivity in Human Populations

To develop a comprehensive protocol for assessing cardiovascular reactivity to stressors, for use in epidemiological and clinical investigations of cardiovascular diseases in healthy popul...

Cardiovascular Diseases in the Silesian Region in Poland.

The Silesian Cardiovascular Database is an observational study of all patients hospitalized due to cardiovascular diseases. The date include information on the clinical characteristics, tr...

PubMed Articles [11449 Associated PubMed Articles listed on BioPortfolio]

Association between alexithymia and risk of incident cardiovascular diseases in the SUpplémentation en Vitamines et Minéraux AntioXydants (SU.VI.MAX) Cohort.

Although alexithymia has been suggested to be associated with cardiovascular diseases, studies are scarce and a causal relationship is questionable. This study explored the prospective association bet...

12-year trends in cardiovascular risk factors (2002-2005 through 2011-2014) in patients with cardiovascular diseases: Tehran lipid and glucose study.

To examine the trend of cardiovascular diseases (CVD) risk factors among a Middle Eastern population with prevalent CVD during a median follow up of 12 years.

Lipidomic insight into cardiovascular diseases.

Cardiovascular disease is a primary cause of mortality worldwide. Therefore, it is of major interest to identify sensitive molecular markers that predict cardiovascular events and point to therapeutic...

Introduction and Update on Obesity and Cardiovascular Diseases 2018.

Pharmacological Modulation of Vagal Nerve Activity in Cardiovascular Diseases.

Cardiovascular diseases are life-threatening illnesses with high morbidity and mortality. Suppressed vagal (parasympathetic) activity and increased sympathetic activity are involved in these diseases....

Medical and Biotech [MESH] Definitions

Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.

Methods and procedures for the diagnosis of diseases or dysfunction of the cardiovascular system or its organs or demonstration of their physiological processes.

Diseases of long duration and generally slow progression. The four main types of noncommunicable diseases are CARDIOVASCULAR DISEASES (e.g., heart attacks and stroke), CANCER, chronic respiratory diseases (e.g., CHRONIC OBSTRUCTIVE PULMONARY DISEASE and ASTHMA) and DIABETES MELLITUS.

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)

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.

More From BioPortfolio on "Long-Term Predictors of Morbidity in Older Age"

Quick Search


Relevant Topics

Cardiovascular disease (CVD)
Acute Coronary Syndromes (ACS) Blood Cardiovascular Dialysis Hypertension Stent Stroke Vascular Cardiovascular disease (CVD) includes all the diseases of the heart and circulation including coronary heart disease (angina...

Cardiology is a specialty of internal medicine.  Cardiac electrophysiology : Study of the electrical properties and conduction diseases of the heart. Echocardiography : The use of ultrasound to study the mechanical function/physics of the h...

Searches Linking to this Trial