Fig. 3　The effect of LSG on liver fattening and fibrosis. (a) The preoperative LS ratio in plain CT was 0.87［0.69–1.12］, and the LS ratio at 12–24 months after LSG significantly improved to 1.26［1.16–1.34］. (** P < 0.0001, Wilcoxon signed-rank test) (b) Fib-4 index did not change 1, 3, 6, and 12 months postoperatively. (P = 0.15, Friedman’s test) LS ratio, liver to spleen ratio; CT, computed tomography.