Dataset Information

Socioeconomic measures and CKD in the United States and The Netherlands.

ABSTRACT:

Background and objectives

According to the cost of health care utilization systems, there may be regional differences in the relative strength of association of income and education-based socioeconomic status measures with CKD. This study investigated the relative strength of the association of income and education with CKD in a United States and a Dutch population.

Design, setting, participants, & measurements

This cross-sectional study examined individuals who participated in the 1999-2002 National Health and Nutritional Examination Survey (NHANES) and in Prevention of Renal and Vascular End-stage Disease (PREVEND 1997-1998), general population-based cohorts in the United States and The Netherlands, respectively. The main outcome was CKD, defined as estimated GFR <60 ml/min per 1.73 m(2) (using creatinine) or albuminuria ? 30 mg/24 hours or albumin-to-creatinine ratio ? 30 mg/g.

Results

In NHANES (n=6428), income was strongly associated with CKD (adjusted odds ratio, 2.34 [95% confidence interval (CI), 1.68 to 3.27]; P for trend<0.001) but education was not (adjusted odds ratio, 1.62 [95% CI, 0.87 to 2.25]; P for trend=0.05]. In contrast, in PREVEND (n=7983), low income was weakly associated with CKD whereas low education had a strong association. The fit of the logistic regression model estimating association of income and education with CKD was significantly improved only after income was added in NHANES (P<0.001) and education was added in PREVEND (P=0.01). Sensitivity analyses that used other CKD-defining variables and restricted analyses to participants <65 years of age resulted in similar findings.

Conclusion

In the United States, where access to health care is traditionally income dependent, income appeared more strongly associated with CKD than in The Netherlands, where education showed a stronger association.

SUBMITTER: Vart P

PROVIDER: S-EPMC3789356 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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Publications

Socioeconomic measures and CKD in the United States and The Netherlands.

Vart Priya P Gansevoort Ron T RT Coresh Josef J Reijneveld Sijmen A SA Bültmann Ute U

Clinical journal of the American Society of Nephrology : CJASN 20130627 10

<h4>Background and objectives</h4>According to the cost of health care utilization systems, there may be regional differences in the relative strength of association of income and education-based socioeconomic status measures with CKD. This study investigated the relative strength of the association of income and education with CKD in a United States and a Dutch population.<h4>Design, setting, participants, & measurements</h4>This cross-sectional study examined individuals who participated in th ...[more]

PMID: 23813554

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Project description:BACKGROUND AND OBJECTIVES:Diabetes is an important cause of CKD. However, among people with diabetes, it is unclear to what extent CKD is attributable to diabetes itself versus comorbid conditions, such as advanced age and hypertension. We examined associations of diabetes with clinical manifestations of CKD independent of age and BP and the extent to which diabetes contributes to the overall prevalence of CKD in the United States. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS:We performed a cross-sectional study of 15,675 participants in the National Health and Nutrition Examination Surveys from 2009 to 2014. Diabetes was defined by use of glucose-lowering medications or hemoglobin A1c ?6.5%. eGFR was calculated using the CKD Epidemiology Collaboration formula, and albumin-to-creatinine ratio was measured in single-void urine samples. We calculated the prevalence of CKD manifestations by diabetes status as well as prevalence ratios, differences in prevalence, and prevalence attributable to diabetes using binomial and linear regression, incorporating data from repeat eGFR and urine albumin-to-creatinine ratio measurements to estimate persistent disease. RESULTS:For participants with diabetes (n=2279) versus those without diabetes (n=13,396), the estimated prevalence of any CKD (eGFR<60 ml/min per 1.73 m2; albumin-to-creatinine ratio ?30 mg/g, or both) was 25% versus 5.3%, respectively; albumin-to-creatinine ratio ?30 mg/g was 16% versus 3.0%, respectively; albumin-to-creatinine ratio ?300 mg/g was 4.6% versus 0.3%, respectively; eGFR<60 ml/min per 1.73 m2 was 12% versus 2.5%, respectively; and eGFR<30 ml/min per 1.73 m2 was 2.4% versus 0.4%, respectively (each P<0.001). Adjusting for demographics and several aspects of BP, prevalence differences were 14.6% (P<0.001), 10.8% (P<0.001), 4.5% (P<0.001), 6.5% (P<0.001), and 1.8% (P=0.004), respectively. Approximately 24% (95% confidence interval, 19% to 29%) of CKD among all United States adults was attributable to diabetes after adjusting for demographics. CONCLUSIONS:Diabetes is strongly associated with both albuminuria and reduced GFR independent of demographics and hypertension, contributing substantially to the burden of CKD in the United States.

Project description:Background and objectivesThe prevalence of ESRD among Hispanics/Latinos is 2-fold higher than in non-Hispanic whites. However, little is known about the prevalence of earlier stages of CKD among Hispanics/Latinos. This study estimated the prevalence of CKD in US Hispanics/Latinos.Design, setting, participants, & measurementsThis was a cross-sectional study of 15,161 US Hispanic/Latino adults of Cuban, Dominican, Mexican, Puerto Rican, Central American, and South American backgrounds enrolled in the multicenter, prospective, population-based Hispanic Community Health Study/Study of Latinos (HCHS/SOL). In addition, the prevalence of CKD in Hispanics/Latinos was compared with other racial/ethnic groups in the 2007-2010 National Health and Nutrition Examination Survey (NHANES). Prevalent CKD was defined as an eGFR <60 ml/min per 1.73 m(2) (estimated with the 2012 Chronic Kidney Disease Epidemiology Collaboration eGFR creatinine-cystatin C equation) or albuminuria based on sex-specific cut points determined at a single point in time.ResultsThe overall prevalence of CKD among Hispanics/Latinos was 13.7%. Among women, the prevalence of CKD was 13.0%, and it was lowest in persons with South American background (7.4%) and highest (16.6%) in persons with Puerto Rican background. In men, the prevalence of CKD was 15.3%, and it was lowest (11.2%) in persons with South American background and highest in those who identified their Hispanic background as "other" (16.0%). The overall prevalence of CKD was similar in HCHS/SOL compared with non-Hispanic whites in NHANES. However, prevalence was higher in HCHS/SOL men and lower in HCHS/SOL women versus NHANES non-Hispanic whites. Low income, diabetes mellitus, hypertension, and cardiovascular disease were each significantly associated with higher risk of CKD.ConclusionsAmong US Hispanic/Latino adults, there was significant variation in CKD prevalence among Hispanic/Latino background groups, and CKD was associated with established cardiovascular risk factors.

Dataset Information

Socioeconomic measures and CKD in the United States and The Netherlands.

Background and objectives

Design, setting, participants, & measurements

Results

Conclusion

Publications

Socioeconomic measures and CKD in the United States and The Netherlands.

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