. Author manuscript; available in PMC: 2012 Jul 19.

Published in final edited form as: Clin Gastroenterol Hepatol. 2011 Jan 14;9(4):357–362.e2. doi: 10.1016/j.cgh.2011.01.003

Table 4.

Pathologist’s categorization of liver biopsy as obstructive versus final clinical diagnosis of BA: positive (PPV) and negative predictive values (NPV) for cases of BA per pathologist

Pathologist	kappa	PPV	NPV
A	.67	90.6	55
B	.51	90.0	68.7
C	.63	88.5	58.3
D	.63	90.2	67.7
E	.68	94.1	62.1
F	.58	90.7	80.0
G	.43	90.7	75.8
H	.75	92.5	80.0
I	.72	89.2	66.6
Overall	.62	90.7	67.0