Original InvestigationPathogenesis and Treatment of Kidney DiseaseAssociation of Socioeconomic Status and CKD Among African Americans: The Jackson Heart Study
Section snippets
Study Population and Measurements
Data for this study were drawn from the baseline examination of the Jackson Heart Study, a single-site longitudinal population-based cohort study prospectively investigating the determinants of cardiovascular disease (CVD) in African Americans living in the tricounty region (Hinds, Madison, and Rankin counties) of the Jackson, MS, metropolitan area. Baseline data collection occurred between September 2000 and March 2004. Recruitment, sampling, and data collection methods have been described
Results
As previously reported, 1,015 Jackson Heart Study participants completed 24-hour urine collections.12 Spot urine collections were added later to the protocol (n = 2,225); however, a substantial segment of the study population did not have sufficient urine data to determine CKD status (n = 1,792). Other individuals were excluded if they did not have sufficient serum data to determine CKD status (n = 56) or had restricted consent (n = 23). Excluded participants were more likely to be older, not
Discussion
This study extends our initial analyses of indicators of CKD prevalence and awareness12 and prior research that focuses on economic deprivation and its implications for excess risks for outcomes such as CKD.7, 8, 9, 10, 11, 28 Our research suggests that affluence also has implications for kidney disease in African Americans. As expected, affluent or highly educated African American participants in the Jackson Heart Study had lower risks of CKD relative to their poor or less educated
Acknowledgements
Support: This research was supported by National Institutes of Health contracts N01-HC-95170, N01-HC-95171, and N01-HC-95172 that were provided by the National Heart, Lung, and Blood Institute (NHLBI), the National Center for Minority Health and Health Disparities, and the National Institute of Biomedical Imaging and Bioengineering and career development awards from the NHLBI to Meharry Medical College (1 K01 HL88735-01; Dr Bruce) and the University of Mississippi Medical Center (1 K01
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Originally published online as doi:10.1053/j.ajkd.2010.01.016 on April 9, 2010.