Food Access, Chronic Kidney Disease, and Hypertension in the U.S.

Published

Journal Article

INTRODUCTION: Greater distance to full-service supermarkets and low income may impair access to healthy diets and contribute to chronic kidney disease (CKD) and hypertension. The study aim was to determine relationships among residence in a "food desert," low income, CKD, and blood pressure. METHODS: Adults in the 2003-2010 National Health and Nutrition Examination Survey (N=22,173) were linked to food desert data (www.ers.usda.gov) by Census Tracts. Food deserts have low median income and are further from a supermarket or large grocery store (>1 mile in urban areas, >10 miles in rural areas). Weighted regression was used to determine the association of residence in a food desert and family income with dietary intake; systolic blood pressure (SBP); and odds of CKD. Data analysis was performed in 2014-2015. RESULTS: Compared with those not in food deserts, participants residing in food deserts had lower levels of serum carotenoids (p<0.01), a biomarker of fruit and vegetable intake, and higher SBP (1.53 mmHg higher, 95% CI=0.41, 2.66) after adjustment for demographics and income. Residence in a food desert was not associated with odds of CKD (OR=1.20, 95% CI=0.96, 1.49). Lower, versus higher, income was associated with lower serum carotenoids (p<0.01) and higher SBP (2.00 mmHg higher for income-poverty ratio ≤1 vs >3, 95% CI=1.12, 2.89), but also greater odds of CKD (OR=1.76 for income-poverty ratio ≤1 vs >3, 95% CI=1.48, 2.10). CONCLUSIONS: Limited access to healthy food due to geographic or financial barriers could be targeted for prevention of CKD and hypertension.

Full Text

Duke Authors

Cited Authors

  • Suarez, JJ; Isakova, T; Anderson, CAM; Boulware, LE; Wolf, M; Scialla, JJ

Published Date

  • December 2015

Published In

Volume / Issue

  • 49 / 6

Start / End Page

  • 912 - 920

PubMed ID

  • 26590940

Pubmed Central ID

  • 26590940

Electronic International Standard Serial Number (EISSN)

  • 1873-2607

Digital Object Identifier (DOI)

  • 10.1016/j.amepre.2015.07.017

Language

  • eng

Conference Location

  • Netherlands