From: Efficacy of ursodeoxycholic acid in reducing the necessity of cholecystectomy due to pre-existing and subsequently formed gallstones in patients who underwent laparoscopic sleeve gastrectomy
TWL% Threshold
Sensitivity (%)
Specificity (%)
Youden’s Index
12.5
94.9
3.4
-1.7
15.0
91.5
8.9
0.4
17.5
76.3
28.8
5.1
20.0
64.4
47.9
12.3
22.5
49.2
67.8
17.0
25.0
37.3
81.4
18.7
27.5
25.4
89.8
15.2
30.0
13.6
96.6
10.2
32.5
100.0