Figure 2

Relationship between ST, GGT and ALT and the grade of liver steatosis. A four grades scoring system was used to assess steatosis: S0 – no steatosis; S1 – mild, 1 to 5%; S2 – moderate, 6 to 32%; S3-S4 – marked or severe, 33 to 100%. Notched box plots showing the relationship (A) in the training group; (B) in validation group 1, HCV patients before treatment; (C) group 2, HCV sustained responders; (D) group 3, alcoholic liver disease; and (E) in controls, healthy volunteers fasting and non-fasting and non-fasting blood donors. The horizontal line inside each box represents the median and the width of each box the median ± 1.57 interquartile range/vn for assessing the 95% level of significance between group medians. Failure of the shaded boxes to overlap corresponds to statistical significance (P < 0.05). The horizontal lines above and below each box encompass the interquartile range (from 25^th to 75^th percentile), and the vertical lines from the ends of the box encompass the adjacent values (upper: 75^th percentile plus 1.5 times interquartile range, lower 25^th percentile minus 1.5 times interquartile range). In validation group 3, almost all patients had steatosis and group S0 and S1 were combined.