title: Low serum potassium level is associated with nonalcoholic fatty liver disease and its related metabolic disorders.
abstract: BACKGROUND
  Subjects with nonalcoholic fatty liver disease (NAFLD) have a high risk of developing type 2 diabetes and cardiovascular diseases. Low serum potassium concentration or low dietary potassium intake can result in metabolic disorders.
  
  
  OBJECTIVE
  Our objective was to evaluate the association between low serum potassium level and prevalence of NAFLD in a Chinese population.
  
  
  METHODS
  A population-based cross-sectional study.
  
  
  METHODS
  We conducted a community-based study in 8592 subjects to investigate the association of serum potassium with the risk of prevalent NAFLD. NAFLD was diagnosed by hepatic ultrasonography.
  
  
  RESULTS
  The prevalence rate of NAFLD was 30·3% in this population and gradually decreased across serum potassium quartiles. With the reduction in serum potassium level, participants have larger waist circumference (WC) and more severe insulin resistance. The correlations hold also in multivariate linear regression analysis. In logistic regression analysis, compared with subjects in the highest quartile of serum potassium level, the adjusted odds ratios (ORs) in the lowest quartile was 1·33 [95% confidence interval (CI), 1·11-1·60] for NAFLD, 1·81 (95% CI, 1·49-2·19) for insulin resistance and 1·58 (95% CI, 1·30-1·93) for central obesity. In subgroup analysis after multiple adjustments, significant relation between serum potassium level and prevalent NAFLD was detected in women, younger subjects, those with insulin resistance and those with central obesity, respectively.
  
  
  CONCLUSIONS
  Low serum potassium level significantly associated with prevalence of NAFLD in middle-aged and elderly Chinese.
authors: Key Laboratory for Endocrine and Metabolic Diseases of Ministry of Health, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, E-Institute of Shanghai Universities, Shanghai, China; Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Department of Endocrinology and Metabolism, Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.
authors: Kan
authors: K
authors: Sun
authors: Jieli
authors: J
authors: Lu
authors: Yiran
authors: Y
authors: Jiang
authors: Min
authors: M
authors: Xu
authors: Yu
authors: Y
authors: Xu
authors: Jie
authors: J
authors: Zhang
authors: Baihui
authors: B
authors: Xu
authors: Jichao
authors: J
authors: Sun
authors: Wanwan
authors: W
authors: Sun
authors: Chenxi
authors: C
authors: Ren
authors: Jianmin
authors: J
authors: Liu
authors: Weiqing
authors: W
authors: Wang
authors: Yufang
authors: Y
authors: Bi
authors: Guang
authors: G
authors: Ning
mesh_terms: D000368:Aged; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005234:Fatty Liver / Q000097:blood* / Q000150:complications* / Q000453:epidemiology; D005260:Female; D006801:Humans; D007333:Insulin Resistance; D008297:Male; D008659:Metabolic Diseases / Q000097:blood* / Q000453:epidemiology / Q000209:etiology*; D008875:Middle Aged; D065626:Non-alcoholic Fatty Liver Disease; D056128:Obesity, Abdominal / Q000097:blood / Q000150:complications / Q000453:epidemiology; D011188:Potassium / Q000097:blood*; D015995:Prevalence
chemical_list: D011188:Potassium