OxFA levels are markedly increased in the blood of patients with NASH. The box-whisker plot is represented with the lower boundary of the box indicating the 25th percentile, the line within the box indicating the median value, and the upper boundary of the box indicating the 75th percentile. The whiskers extend to the most extreme data point, which is no more than 1.5 times the interquartile range from the box. P values represent differences among groups. Abbreviations: HETE: hydroxy-eicosatetraenoic acid; HODE: hydroxy-octadecadienoic acid; NASH, nonalcoholic steatohepatitis; oxFA, oxidized fatty acid; oxoODE: oxo-octadecadienoic acid.