Journal
JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY
Volume 30, Issue 4, Pages 733-741Publisher
WILEY
DOI: 10.1111/jgh.12832
Keywords
non-alcoholic fatty liver disease; serum calcium; serum phosphorus
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Background and AimGrowing evidence suggests that non-alcoholic fatty liver disease (NAFLD) is interrelated with renal dysfunction and disturbed bone metabolism, both of which play a key role in calcium and phosphorus homeostasis. We investigated the association between NAFLD and serum calcium and phosphorus levels in Korean subjects. MethodsWe performed a cross-sectional analysis of 16592 subjects undergoing a general health checkup. NAFLD was assessed based on ultrasonographically detected fatty liver in the absence of excessive alcohol consumption and other causes of liver disease. ResultsThe proportion of the population with fatty liver detected by ultrasonography was 43.2% for males and 17.6% for females. We observed that a higher serum albumin-corrected calcium (Ca-c) level was associated with smoking, hypertension, and unfavorable metabolic parameters in both genders, but the serum phosphorus levels showed an inconsistent correlation with metabolic abnormalities. After adjusting for age, gender, waist circumference, body mass index, smoking status, exercise, diabetes, hypertension, lipid profiles, and renal function, serum Ca-c, phosphorus, and Ca-c-phosphorus products were independent risk factors for fatty liver (odds ratio [OR]: 1.71, 95% confidence interval [CI]: 1.49-1.95, P<0.001; OR: 1.34, 95% CI: 1.22-1.48, P<0.001; and OR: 1.20, 95% CI: 1.14-1.26, P<0.001, respectively), and the risk of fatty liver increased in a graded manner over the quartiles. ConclusionSerum calcium and phosphorus levels are significantly associated with NAFLD. Further investigation is needed to verify whether calcium and phosphorus levels indicate a higher risk of NAFLD.
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