Fig. 2

LFC levels in lean/overweight non-PCOS and PCOS groups and in OPN quartile groups. (a) LFC levels in non-PCOS and PCOS groups. (b) LFC levels in lean and overweight non-PCOS groups and lean and overweight PCOS groups. (c) LFC levels by OPN quartiles in the PCOS group

For comparison between PCOS and non-PCOS groups, the Mann-Whitney U test was performed. The Kruskal-Wallis test followed by the Mann-Whitney U test was performed to test the differences among the four subgroups. Data are displayed as median with interquartile range. *P < 0.05, **P < 0.01. LFC: liver fat content.