Table 2
Covariations between lithotripsy, bile duct diameter, and stone diameter
Bile duct diameter
Stone diameter
<11 mm
≥11 mm
<11 mm
≥11 mm
*Fisher's exact test
†χ
2
test with Yates' correction.
Lithotripsy
No
134
621
488
237
Yes
5
181
30
157
p<0.0001*
p<0.0001†