Table 6: Analysis of concordance by

Kappa index for comparison of histopathology results

and gallbladder and biliary tract ultrasound.

Pathology vs. ultrasound

concordance analysis

Kappa

p

Presence of polypoid lesions

-0.061

0.612

Wall thickening

-0.026

0.512

Presence of multiple polyps

0.097

0.394

Presence of vesicular lithiasis

0.432

0.0015