Drug-eluting fully covered self-expanding metal stent for dissolution of bile duct stones in vitro

Table 3 Classification of inflammation in different tissues after stent placement

	Gallbladder		CBD
	Naked FCSEMS	Stent III	Naked FCSEMS	Stent III
	(n = 5)	(n = 5)	(n = 5)	(n = 5)
-	0	0	0	0
+	2	3	1	1
++	3	2	3	2
+++	0	0	1	2
Z-value	0.48		-0.34
P-value	0.36		0.65

CBD: Common bile duct; FCSEMS: Fully covered self-expanding metal stent. Mild (+), moderate (++), and severe (+++).