Characteristics of the study population by serum liver enzymes activity status at baseline.

<p>Notes: ¹The cutoff values for ALT are: Normal, ALT ≤40.0 U/L for male or ≤31.0 U/L for female; Elevated, ALT >40.0 U/L for male or >31.0 U/L for female;</p>2<p>the cutoff values for AST are: Normal, AST ≤37.0 U/L for male or ≤31.0 U/L for female; Elevated, AST >37.0 U/L for male or >31.0 U/L for female;</p>3<p>the cutoff values for ALP are: Normal, ALP≤117.0 U/L for all patients; Elevated, ALP>117.0 U/L for adults and 117–390 for children (3–15 years);</p>4<p>the cutoff values for GGT are: Normal, GGT ≤51.0 U/L for male or GGT ≤33.0 U/L for female; Elevated, GGT >51.0 U/L for male or >33.0 U/L for female.