Congestive Heart Failure Trends in the Elderly 1970-94
| Tracking Information | |||||
|---|---|---|---|---|---|
| First Received Date ICMJE | May 25, 2000 | ||||
| Last Updated Date | June 23, 2005 | ||||
| Start Date ICMJE | July 1998 | ||||
| Primary Completion Date | Not Provided | ||||
| Current Primary Outcome Measures ICMJE | Not Provided | ||||
| Original Primary Outcome Measures ICMJE | Not Provided | ||||
| Change History | Complete list of historical versions of study NCT00005499 on ClinicalTrials.gov Archive Site | ||||
| Current Secondary Outcome Measures ICMJE | Not Provided | ||||
| Original Secondary Outcome Measures ICMJE | Not Provided | ||||
| Current Other Outcome Measures ICMJE | Not Provided | ||||
| Original Other Outcome Measures ICMJE | Not Provided | ||||
| Descriptive Information | |||||
| Brief Title ICMJE | Congestive Heart Failure Trends in the Elderly 1970-94 | ||||
| Official Title ICMJE | Not Provided | ||||
| Brief Summary | 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). |
||||
| Detailed Description | 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. |
||||
| Study Type ICMJE | Observational | ||||
| Study Design ICMJE | Observational Model: Natural History | ||||
| Target Follow-Up Duration | Not Provided | ||||
| Biospecimen | Not Provided | ||||
| Sampling Method | Not Provided | ||||
| Study Population | Not Provided | ||||
| Condition ICMJE |
|
||||
| Intervention ICMJE | Not Provided | ||||
| Study Group/Cohort (s) | Not Provided | ||||
| Publications * | Not Provided | ||||
|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
|||||
| Recruitment Information | |||||
| Recruitment Status ICMJE | Completed | ||||
| Enrollment ICMJE | Not Provided | ||||
| Completion Date | June 2001 | ||||
| Primary Completion Date | Not Provided | ||||
| Eligibility Criteria ICMJE | No eligibility criteria |
||||
| Gender | Both | ||||
| Ages | Not Provided | ||||
| Accepts Healthy Volunteers | No | ||||
| Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
| Location Countries ICMJE | Not Provided | ||||
| Administrative Information | |||||
| NCT Number ICMJE | NCT00005499 | ||||
| Other Study ID Numbers ICMJE | 5017 | ||||
| Has Data Monitoring Committee | Not Provided | ||||
| Responsible Party | Not Provided | ||||
| Study Sponsor ICMJE | National Heart, Lung, and Blood Institute (NHLBI) | ||||
| Collaborators ICMJE | Not Provided | ||||
| Investigators ICMJE |
|
||||
| Information Provided By | National Heart, Lung, and Blood Institute (NHLBI) | ||||
| Verification Date | August 2004 | ||||
|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
|||||