The prevalence and metabolic risk factors of nonalcoholic fatty liver disease among middle-aged and aged people / 实用医学杂志

ABSTRACT

Objective To investigate the prevalence of nonalcoholic fatty liver disease in a population of routine check-up,and analyze the correlation between non-alcoholic fatty liver disease and metabolic risk factors.Methods Physical examination data of 2 064 routine check-up (aged 45 or more) in the Third People's Hospital of Chengdu from January 2014 to December 2015 were randomly selected.HbA1c,fasting blood glucose,blood lipids and other indicators were measured to calculate the prevalence of NAFLD,and to analyze the correlation between NAFLD and metabolic risk factors.Results Among 2 064 cases underwent physical examination,the overall prevalence of NAFLD was 16.09％ (332/2 064).The male prevalence rate of NAFLD was significantly higher than that in female (18.51％ vs.12.87％;x2 =11.913,P =0.001).In four age groups (＜ 50 years old,50 to 59 years old,60 to 69 years old,≥ 70 years old),the NAFLD prevalence rate was 16.26％,15.63％,16.97％ and 14.72％ respectively.No statistical significance (x2 =0.900,P =0.826) was found in NAFLD prevalence rate difference in all age groups of has.In 50 ～ 59 years old and ≥70 years old group,the NAFLD prevalence rates in male were higher than that in female,the difference was statistically significant (both P ＜ 0.05).BMI,waist circumference,systolic blood pressure,diastolic blood pressure (DBP),HbA1c,fasting blood glucose,TC,TG,LDL-C,uric acid levels in NAFLD patients were higher than the normal population.HDL-C levels in patients with NAFLD is lower than that of the normal,and the difference is statistically significant (both P ＜ 0.05).Logistic regression analysis showed that BMI,hypertension,diabetes,and high TG were the independent risk factors of NAFLD;HDL-C and NAFLD were the protective factors.Conclusions In the Chengdu area of Sichuan Province,the prevalence rate of NAFLD was high,the incidence rate of NAFLD in male was higher than that in female.BMI,hypertension,diabetes mellitus and high TG were the independent risk factors of NAFLD,and HDL-C was the protective factor.