Visceral Fat, Metabolic Rate, and CHD Risk in Young Adults

Tracking Information
First Submitted Date	May 25, 2000
First Posted Date	May 26, 2000
Last Update Posted Date	February 18, 2016
Study Start Date	September 1995
Primary Completion Date	Not Provided
Current Primary Outcome Measures	Not Provided
Original Primary Outcome Measures	Not Provided
Change History	Complete list of historical versions of study NCT00005388 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures	Not Provided
Original Secondary Outcome Measures	Not Provided
Current Other Outcome Measures	Not Provided
Original Other Outcome Measures	Not Provided
Descriptive Information
Brief Title	Visceral Fat, Metabolic Rate, and CHD Risk in Young Adults
Official Title	Not Provided
Brief Summary	To measure visceral (intraabdominal) fat by computerized tomography (CT) scan and to measure resting metabolic rate by indirect calorimetry in 400 CARDIA subjects, ages 28-40 years (100 of each race/gender group) from the Oakland, California and Birmingham, Alabama centers.
Detailed Description	BACKGROUND: The prevalence of obesity increased markedly in the United States from the 1960's to the 1980's, and varied by race and gender with particularly high rates of obesity among Black women. Reasons for the ethnic differences in the prevalence of obesity were not understood. This cross-sectional study was performed in conjunction with the 10-year follow-up examination for the Coronary Artery Risk Development in Young Adults (CARDIA) study, an NHLBI-funded longitudinal study of development of risk factors for coronary heart disease (CHD) in young black and white adults. This study represented a unique opportunity to investigate factors that may influence the development of obesity, to better understand the relationship between obesity and cardiovascular risk factors, and to increase understanding of racial differences in adiposity. The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record. DESIGN NARRATIVE: The cross-sectional study tested the hypothesis that visceral adipose tissue, the component of fat considered to be most strongly related to coronary heart disease (CHD) risk factors, differed in Black and white subjects. Specifically, the investigators proposed that Black subjects had less visceral adipose tissue for a given level of total body fat than white subjects. Further, the relationship between visceral adipose tissue and risk factors for CHD was similar in all subjects. This would explain the different relationship between obesity and CHD risk factors seen in Black vs white subjects. A second specific aim was to determine whether Black women had a lower resting energy expenditure than Black men or whites. This could explain the higher prevalence of obesity in Black women than in Black men or whites of either gender. CT scans were recorded on tape and shipped to the University of Colorado Health Sciences Center where visceral adipose tissue was quantified. Dietary intake and physical activity were measured as important covariates in the relationship between metabolic rate and adiposity, and thyroid function was measured as a determinant of resting energy expenditure. The CARDIA study provided funding for cardiovascular risk factor measurements, including blood pressure, lipids, insulin, glucose, smoking, and anthropometric measurements including dual energy absorptiometry (DEXA) measurements of total and regional body fat. The study was renewed in 1999 through March 2004 to perform a five-year follow-up of the cohort.
Study Type	Observational
Study Design	Not Provided
Target Follow-Up Duration	Not Provided
Biospecimen	Not Provided
Sampling Method	Not Provided
Study Population	Not Provided
Condition	Cardiovascular Diseases; Heart Diseases; Coronary Disease; Obesity
Intervention	Not Provided
Study Groups/Cohorts	Not Provided
Publications *	Sidney S, Lewis CE, Hill JO, Quesenberry CP Jr, Stamm ER, Scherzinger A, Tolan K, Ettinger B. Association of total and central adiposity measures with fasting insulin in a biracial population of young adults with normal glucose tolerance: the CARDIA study. Obes Res. 1999 May;7(3):265-72.; Hill JO, Sidney S, Lewis CE, Tolan K, Scherzinger AL, Stamm ER. Racial differences in amounts of visceral adipose tissue in young adults: the CARDIA (Coronary Artery Risk Development in Young Adults) study. Am J Clin Nutr. 1999 Mar;69(3):381-7.; Sharp TA, Bell ML, Grunwald GK, Schmitz KH, Sidney S, Lewis CE, Tolan K, Hill JO. Differences in resting metabolic rate between white and African-American young adults. Obes Res. 2002 Aug;10(8):726-32.; Simon JA, Murtaugh MA, Gross MD, Loria CM, Hulley SB, Jacobs DR Jr. Relation of ascorbic acid to coronary artery calcium: the Coronary Artery Risk Development in Young Adults Study. Am J Epidemiol. 2004 Mar 15;159(6):581-8.
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status	Completed
Enrollment	Not Provided
Original Enrollment	Not Provided
Actual Study Completion Date	March 2004
Primary Completion Date	Not Provided
Eligibility Criteria	Not Provided
Sex/Gender	Sexes Eligible for Study: Male
Ages	up to 100 Years (Child, Adult, Senior)
Accepts Healthy Volunteers	No
Contacts	Contact information is only displayed when the study is recruiting subjects
Listed Location Countries	Not Provided
Removed Location Countries
Administrative Information
NCT Number	NCT00005388
Other Study ID Numbers	4294; R01HL053359 ( U.S. NIH Grant/Contract )
Has Data Monitoring Committee	Not Provided
U.S. FDA-regulated Product	Not Provided
IPD Sharing Statement	Not Provided
Responsible Party	Not Provided
Study Sponsor	National Heart, Lung, and Blood Institute (NHLBI)
Collaborators	Not Provided
Investigators	Investigator: Stephen Sidney Kaiser Foundation
PRS Account	National Heart, Lung, and Blood Institute (NHLBI)
Verification Date	April 2004