Congestive Heart Failure Trends in the Elderly 1970-94

This study has been completed.
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
ClinicalTrials.gov Identifier:
NCT00005499
First received: May 25, 2000
Last updated: June 23, 2005
Last verified: August 2004

May 25, 2000
June 23, 2005
July 1998
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Complete list of historical versions of study NCT00005499 on ClinicalTrials.gov Archive Site
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Congestive Heart Failure Trends in the Elderly 1970-94
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To investigate trends in the incidence and survival rates of congestive heart failure (CHF) in two successive cohorts of elderly people (1970-74, 1990-94) in a health maintenance organization (HMO).

BACKGROUND:

The study constituted part of a growing body of research designed to understand not only the secular trends in mortality, morbidity, survival, and disability levels for selected major chronic diseases among older persons in the United States, but also the implications of the findings for health care utilization.

DESIGN NARRATIVE:

The design was that of a retrospective study of successive cohorts of a well-defined and well-documented elderly population for the purpose of identifying and explaining trends in congestive heart failure (CHF) incidence, survival, comorbidities and health services utilization during the 25-year period 1970-1994. The study sample consisted of two successive period cohorts of elderly people, identified for each of two five-year periods, 1970-1974 and 1990-94. The study tested the following hypotheses: 1) incidence of CHF had decreased among the younger old (65-74 years of age); 2) incidence of CHF had increased among the older old (75 years of age or above); 3) one-year survival time had increased following onset of incident CHF; and 4) prevalence of hypertension had decreased and prevalence of myocardial infarction and other manifestations of coronary artery disease increased among incident cases of CHF.

Observational
Observational Model: Natural History
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  • Cardiovascular Diseases
  • Heart Diseases
  • Heart Failure, Congestive
  • Heart Failure
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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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June 2001
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No eligibility criteria

Both
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No
Contact information is only displayed when the study is recruiting subjects
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NCT00005499
5017
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National Heart, Lung, and Blood Institute (NHLBI)
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Investigator: William Barker Kaiser Foundation Research Institute
National Heart, Lung, and Blood Institute (NHLBI)
August 2004

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