Effect of brush rinse on the diagnostic accuracy of biliary stricture evaluation: A multicenter trial

Table 2 Median number of cell clusters per method

	Brush-wash (n = 112)	Sheath-rinse (n = 112)	P value1
Total cell clusters	3 (1-6)	12 (4-21)	< 0.001
Large (> 50 cells) clusters	3 (1-13)	8 (3-38)	< 0.001
Medium (6-49 cells) clusters	3 (1-9)	7 (3-27)	< 0.001
Small (2-5 cells) clusters	3 (1-14)	9 (2-36)	< 0.001
Single-cell clusters	6 (0-41)	20 (4-111)	< 0.001

¹Wilcoxon rank sum test.

Values are expressed as median (interquartile range).