Trends in Serum AST-to-ALT Ratio Among U.S. Adults: Analysis of the U.S. National Health and Nutrition Examination Survey.

Using nationally representative data, we examined the age-, sex-, and ethnic-specific variation in the ratio of serum aspartate aminotransferase and alanine aminotransferase (AST-to-ALT ratio or AAR) of U.S. adults (20+ years).