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Obesity, Metabolic Abnormality, and Progression of CKD

Authors
 Hae-Ryong Yun  ;  Hyoungnae Kim  ;  Jung Tak Park  ;  Tae Ik Chang  ;  Tae-Hyun Yoo  ;  Shin-Wook Kang  ;  Kyu Hun Choi  ;  Suah Sung  ;  Soo Wan Kim  ;  Joongyub Lee  ;  Kook-Hwan Oh  ;  Curie Ahn  ;  Seung Hyeok Han  ;  Seohyun Park  ;  Jong Hyun Jhee  ;  Youn Kyung Kee  ;  Dong Wan Chae  ;  Ho Jun Chin  ;  Hayne Cho Park  ;  Kyubeck Lee  ;  Yong-Soo Kim  ;  Wookyung Chung  ;  Young-Hwan Hwang  ;  Yeong Hoon Kim  ;  Sun Woo Kang 
Citation
 American Journal of Kidney Diseases, Vol.72(3) : 400-410, 2018 
Journal Title
 American Journal of Kidney Diseases 
ISSN
 0272-6386 
Issue Date
2018
Keywords
CKD progression ; Chronic kidney disease (CKD) ; body mass index (BMI) ; end-stage renal disease (ESRD) ; estimated glomerular filtration rate (eGFR) ; kidney function ; metabolic abnormality ; metabolic syndrome ; obesity ; renal outcome
Abstract
RATIONALE & OBJECTIVE: Recent studies have yielded conflicting findings on the association between obesity and progression of chronic kidney disease (CKD). Few studies have evaluated whether metabolic abnormalities may accelerate the rate of progression of CKD. STUDY DESIGN: Prospective observational cohort study. SETTING & PARTICIPANTS: 1,940 participants from the Korean Cohort Study for Outcome in Patients With Chronic Kidney Disease (KNOW-CKD) PREDICTORS: Obesity and metabolic abnormality. Obesity was defined as body mass index ≥ 25kg/m2. Metabolic abnormality was defined as the presence of 3 or more of the following 5 components: hypertension, fasting glucose level > 125mg/dL or the presence of type 2 diabetes, triglyceride level > 150mg/dL or use of lipid-lowering drugs, high-density lipoprotein cholesterol level ≤ 40mg/dL in men and ≤ 50mg/dL in women, and high-sensitivity C-reactive protein level > 1mg/L. OUTCOME: A composite of a 50% decline in estimated glomerular filtration rate from the baseline value or end-stage kidney disease. ANALYTIC APPROACH: Multivariable cause-specific hazards models implemented to assess the association between obesity, metabolic abnormality, and CKD progression. RESULTS: During a mean follow-up of 3.1 years, the primary outcome occurred in 395 (20.4%) patients. In multivariable analyses, after adjustment for confounding factors, obesity and metabolic abnormality were significantly associated with 1.41-fold (95% CI, 1.08-1.83; P=0.01) and 1.38-fold (95% CI, 1.03-1.85; P=0.03) increased risk for adverse renal outcomes, respectively. Patients were categorized into 4 groups depending on the presence of obesity and metabolic abnormality. Compared with those with neither obesity nor metabolic abnormality, those with obesity and metabolic abnormality had a greater risk for CKD progression (HR, 1.53; P=0.03). Those with obesity without metabolic abnormality also had a higher rate of CKD progression (HR, 1.97; P=0.01). LIMITATIONS: Observational study, limited power to detect cardiovascular disease outcomes, unmeasured confounders. CONCLUSIONS: Both metabolic abnormality and obesity are associated with a significantly increased risk for CKD progression. Notably, obese patients without metabolic abnormality also have an elevated risk for CKD progression.
DOI
10.1053/j.ajkd.2018.02.362
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실)
Yonsei Authors
강신욱(Kang, Shin Wook) ORCID logo https://orcid.org/0000-0002-5677-4756
김형래(Kim, Hyoung Rae)
박정탁(Park, Jung Tak) ORCID logo https://orcid.org/0000-0002-2325-8982
유태현(Yoo, Tae Hyun) ORCID logo https://orcid.org/0000-0002-9183-4507
윤해룡(Yun, Hae Ryong) ORCID logo https://orcid.org/0000-0002-7038-0251
최규헌(Choi, Kyu Hun)
한승혁(Han, Seung Hyeok) ORCID logo https://orcid.org/0000-0001-7923-5635
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163444
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