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São Paulo med. j ; 136(6): 511-519, Nov.-Dec. 2018. tab
Article in English | LILACS | ID: biblio-991697

ABSTRACT

ABSTRACT BACKGROUND: It has been suggested that the levels of some liver enzymes, and especially alanine aminotransferase (ALT), might be correlatable with cardiometabolic risk factors. We investigated the relationship between ALT concentration and cardiometabolic risk factors among children and adolescents. DESIGN AND SETTING: This nationwide study in Iran was conducted within the framework of the fifth survey of a national surveillance program known as the Childhood and Adolescence Surveillance and PreventIon of Adult Non-communicable disease study (CASPIAN-V). METHODS: The participants comprised 4200 students aged 7-18 years, who were recruited through multi-stage random cluster sampling in 30 provinces in Iran. Physical examinations and laboratory tests were conducted in accordance with standard protocols. RESULTS: Overall, 3843 students (participation rate: 91.5%) completed the survey. Mean ALT levels were significantly higher in individuals with dyslipidemia, in terms of elevated total cholesterol (TC) or LDL-cholesterol or triglycerides (TG), excess weight and dyslipidemia. Some cardiometabolic risk factors were associated with higher levels of ALT, with the following odds ratio (OR) and 95% confidence interval (CI):metabolic syndrome (OR: 1.013; 95% CI: 1.001-1.025); elevated TC (OR: 1.060; 95% CI: 1.039-1.081), elevated LDL (OR: 1.031; 95% CI: 1.016-1.046), elevated TG (OR: 1.056; 95% CI: 1.040-1.072) and dyslipidemia (OR: 1.051; 95% CI: 1.034-1.068). CONCLUSION: This large population-based study revealed that some cardiometabolic risk factors were significantly associated with ALT levels. These findings suggest that an association with fatty liver is an underlying mechanism for development of cardiometabolic risk factors.


Subject(s)
Humans , Male , Female , Child , Adolescent , Cardiovascular Diseases/blood , Metabolic Syndrome/blood , Alanine Transaminase/blood , Rural Population/statistics & numerical data , Triglycerides/blood , Urban Population , Blood Pressure , Biomarkers/blood , Cardiovascular Diseases/epidemiology , Body Mass Index , Cross-Sectional Studies , Risk Factors , Metabolic Syndrome/epidemiology , Non-alcoholic Fatty Liver Disease/blood , Non-alcoholic Fatty Liver Disease/epidemiology , Iran/epidemiology , Cholesterol, HDL/blood , Cholesterol, LDL/blood
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