Association between Obesity and Chronic Kidney Disease, Defined by Both Glomerular Filtration Rate and Albuminuria, in Korean Adults

Yoon Ji Kim, Seun Deuk Hwang, Tae Jung Oh, Kyoung Min Kim, Hak Chul Jang, Heejin Kimm, Hyeon Chang Kim, Sun Ha Jee, Soo Lim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Background: Chronic kidney disease (CKD) has often been defined based on glomerular filtration rate (GFR) alone. The Kidney Disease: Improving Global Outcomes guideline highlights albuminuria in the CKD definition. Thus, we investigated the association between obesity and CKD, as defined by both GFR and albuminuria, in Korean adults. Methods: We used Korea National Health and Nutrition Examination Survey 2011-2014 data (N = 19,331, ≥19 years old) representing the national Korean population. CKD was classified by (1) estimated GFR (eGFR) < 60 mL/min/1.73 m2 (CKDGFR); (2) albumin-to-creatinine ratio (ACR) ≥30 mg/gram (CKDACR); and (3) eGFR < 60 mL/min/1.73 m2 or ACR ≥30 mg/gram (CKDRisk). Associations between obesity and each CKD category were evaluated using multivariate logistic regression analysis. Results: The prevalence rates of CKDGFR, CKDACR, and CKDRisk were 2.2%, 6.7%, and 8.1%, respectively. Compared with the normal body mass index (BMI; 18.5-22.9 kg/m2) group, men with BMI ≥ 25 kg/m2 had 1.88 times greater risk of CKDGFR in the adjusted model [95% confidence interval (CI), 1.26-2.80; P = 0.002]; BMI was not significantly associated with CKDGFR in women. In contrast, both men and women with BMI ≥ 25 kg/m2 had 1.58 and 1.40 times higher risk of CKDACR (95% CI, 1.21-2.07 and 1.08-1.81, respectively, both P < 0.01). Obese men and women had 1.65 and 1.38 times higher risk of CKDRisk (95% CI, 1.29-2.12 and 1.09-1.75, respectively, both P < 0.01). Conclusions: Obesity was significantly associated with an increased ACR-based CKD risk. Longitudinal studies are needed to investigate the role of overweight and obesity in the development and progression of CKD.

Original languageEnglish
Pages (from-to)416-422
Number of pages7
JournalMetabolic syndrome and related disorders
Volume15
Issue number8
DOIs
Publication statusPublished - 2017 Oct

All Science Journal Classification (ASJC) codes

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism

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