Uric acid is the end product of dietary or endogenous purines degradation, and hyperuricemia is one of the most common metabolic disorders. A growing body of evidence, comprising a great deal of cross-sectional studies and several prospective ones, also indicates that hyperuricemia is associated with increased prevalence, incidence, and disease severity of non-alcoholic fatty liver disease (NAFLD).

Capitalizing on a cohort study in China, the investigators are aimed to assess the associations of SUA trajecteries with remission of NAFLD in NAFLD individuals and examined whether the association differs across subpopulations.

A cohort study was conducted to evaluate the relationship between the SUA trajecteries and remission of NAFLD. The study enrolled employees who were attending their annual health examination. Furrhermore, the investigators are aimed to explore whether the association differs across subpopulations.

Inclusion Criteria:

1. age >=18 years;
2. agree to be enrolled in this study.

Exclusion Criteria:

1. those taking antihypertensive or antidiabetic agents, lipid-lowing agents, or hypouricemic agents;
2. those with alcohol consumption greater than 140 g/week for men and 70 g/week for women;
3. those with a history of other known causes of chronic liver disease such as viral hepatitis or autoimmune hepatitis, and those using hepatotoxic medications.

People who undergo annual physical examinations in The First Affiliated Hospital, College of Medicine, Zhejiang University are enrolled in this study. People are divided into two groups according to hepatic ultrasonic examination at baseline: (1) individuals with NAFLD; (2) individuals without NAFLD.