Black Pooling Project

This study has been completed.
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
ClinicalTrials.gov Identifier:
NCT00064480
First received: July 8, 2003
Last updated: April 22, 2008
Last verified: April 2008
  Purpose

To conduct a person-level meta-analysis by pooling 9 United States studies with both black and white cohorts.


Condition
Cardiovascular Diseases
Coronary Disease
Heart Diseases

Study Type: Observational

Resource links provided by NLM:


Further study details as provided by National Heart, Lung, and Blood Institute (NHLBI):

Study Start Date: July 2003
Study Completion Date: December 2007
Primary Completion Date: December 2007 (Final data collection date for primary outcome measure)
Detailed Description:

BACKGROUND:

Over the last three decades a sustained and marked decline in death rates from coronary heart disease (CHD) has occurred for all major demographic groups of the US population. Recently, however, the decline has proceeded less rapidly in blacks than in whites, and in women than men. These trends have focused further attention on possible heterogeneity in the risk factor patterns among the demographic sub-groups. As is well recognized, the knowledge on CHD risk factors and statistical models used to predict personal risk of CHD have been based on studies among white populations. In some epidemiological studies with samples from black populations, large variation in the effect of specific factors has been noted. Given the small sample of blacks under investigation, however, low statistical power exists for many of the black-white comparisons. The fundamental obstacle to progress in this area remains the absence of the cohorts of sufficient size that is representative of all four major groups. Hence, a strong rationale exists to undertake a "pooling project" to clarify a set of important unanswered questions in cardiovascular disease epidemiology.

DESIGN NARRATIVE:

Person-level meta-analysis will be conducted by pooling 9 large United States epidemiologic studies with both black and white samples: the First National Health and Nutrition Examination Survey (NHANES I) Epidemiological Follow-up Study, the NHANES II Mortality Follow-up Study, the Charleston Heart Study, the Evans County Heart Study, the Chicago Heart Association Detection Project in Industry, the Atherosclerosis Risk in Communities Study (ARIC), the Follow-up Study of the screenees for the Multiple Risk Factors Intervention Trial (MRFIT), the Follow-up Study of the participants from the MRFIT, and the Follow-up Study of the participants from the Hypertension Detection and Follow-up Program (HDFP). Black-white comparison will be performed on the CHD incidence and mortality, exposure-outcome relationship, patterns of co-morbidity (or coexistence of risk factors) and population attributable risk. Multivariate risk functions will also be examined in blacks and whites in the three contexts: ordering risk, magnitude of relative risks, and estimation of absolute risk.

  Eligibility

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

No eligibility criteria

  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00064480

Sponsors and Collaborators
Investigators
Investigator: Daniel Lackland Medical University of South Carolina
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00064480     History of Changes
Other Study ID Numbers: 1222
Study First Received: July 8, 2003
Last Updated: April 22, 2008
Health Authority: United States: Federal Government

Additional relevant MeSH terms:
Cardiovascular Diseases
Coronary Disease
Coronary Artery Disease
Heart Diseases
Myocardial Ischemia
Vascular Diseases
Arteriosclerosis
Arterial Occlusive Diseases

ClinicalTrials.gov processed this record on July 20, 2014