Hypertension in Black Americans: A Life Course Approach
| Tracking Information | |||||
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| First Received Date ICMJE | October 12, 2000 | ||||
| Last Updated Date | January 18, 2008 | ||||
| Start Date ICMJE | August 2000 | ||||
| Primary Completion Date | January 2006 (final data collection date for primary outcome measure) | ||||
| Current Primary Outcome Measures ICMJE | Not Provided | ||||
| Original Primary Outcome Measures ICMJE | Not Provided | ||||
| Change History | Complete list of historical versions of study NCT00006408 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 | Hypertension in Black Americans: A Life Course Approach | ||||
| Official Title ICMJE | Not Provided | ||||
| Brief Summary | To investigate the relationship between life-stress factors associated with socioeconomic conditions and hypertension. |
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| Detailed Description | BACKGROUND: Increasingly, researchers are recognizing that risk for cardiovascular disease (CVD) in adulthood is rooted in the social and material life conditions of childhood, and that these childhood conditions may predict risk for CVD above and beyond traditional adulthood indicators of socioeconomic status (SES) such as education, occupation or income. Nowhere is this life course perspective on CVD risk more important than in the case of African Americans, especially the generation that "came of age" in the U.S. South in the late 1950s and 1960s, the peak years of the modern Civil Rights Movement. While some African American members of this age cohort were able to take advantage of the new opportunities for economic advancement, some others were not, resulting thereafter in different life course trajectories of exposure to social and economic hardship. The relationship between variations in these social and economic life course trajectories, and CVD risk (specifically hypertension) in adulthood, has not been investigated in African Americans. DESIGN NARRATIVE: The study uses the Pitt County, (NC) cohort, a community sample of African Americans (N=1784, 66 percent female, 80 percent response rate) who were between 25-50 years of age at baseline in 1988. Normotensives in the baseline sample were re-examined in 1993 (N=1195, 66 percent female, 85 percent response rate). In addition to measuring blood pressure, extensive data on psychosocial, behavioral, and anthropometric characteristics were obtained at both times. The study re-examines the original cohort in 2001; the anticipated sample size is 1142 individuals (717 women and 425 men). Starting from age 20, respondents' reported exposure to three domains of socioenvironmental stressors will be assessed: (1) adverse socioeconomic conditions; (2) low levels of social integration; and (3) racial discrimination. Taken individually, and then collectively, the greater the cumulative life course exposure to these stressors, the greater the risk for adult hypertension is expected to be. The primary analyses will focus on the relationship between pre-1988 exposures and 1988 blood pressure status (retrospective analyses), and the relationship between pre-1988 exposures and changes in blood pressure status between 1988 and 2001(prospective analyses). |
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| Study Type ICMJE | Observational | ||||
| Study Design ICMJE | Time Perspective: Retrospective | ||||
| Target Follow-Up Duration | Not Provided | ||||
| Biospecimen | Not Provided | ||||
| Sampling Method | Not Provided | ||||
| Study Population | Not Provided | ||||
| Condition ICMJE |
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| Intervention ICMJE | Not Provided | ||||
| Study Group/Cohort (s) | Not Provided | ||||
| Publications * | Not Provided | ||||
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* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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| Recruitment Information | |||||
| Recruitment Status ICMJE | Completed | ||||
| Enrollment ICMJE | Not Provided | ||||
| Completion Date | January 2006 | ||||
| Primary Completion Date | January 2006 (final data collection date for primary outcome measure) | ||||
| Eligibility Criteria ICMJE | No eligibility criteria |
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| Gender | Both | ||||
| Ages | 25 Years to 50 Years | ||||
| 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 | NCT00006408 | ||||
| Other Study ID Numbers ICMJE | 933 | ||||
| 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 |
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| Information Provided By | National Heart, Lung, and Blood Institute (NHLBI) | ||||
| Verification Date | January 2008 | ||||
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ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
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