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Table 2 Summary of the results

From: Interobserver study on histologic features of idiopathic non-cirrhotic portal hypertension

Images distributed

Lobule (L) (n = 45)

Portal tract (P) (n = 45)

Provided clinical history

Q1

Q2

Q1

Q2

Consensus a

73%

67%

60%

69%

Kappa value (95% CI, p < 0.05)b

0.24 (0.19–0.29)

0.24 (0.19–0.29)

0.18 (0.13–0.23)

0.18 (0.13–0.23)

Change in consensus status by Q2 provisionc

29%

40%

WNL to abnormal or loss of consensus, by Q2 provision

9%

16%

Study group

 

INCPH (L = 25, P = 19)

Non-INCPH (L = 20, P = 26)

Provided (true) clinical history

 

Q2

 

Q1

 

Kappa value (95% CI, p < 0.05)b

L: 0.32 (0.25–0.38)

L: 0.12 (0.05–0.19)

  

P: 0.17 (0.10–0.25)

P: 0.14 (0.08–0.21)

Reproducibility

Reproducible

57%

 

37%

 
 

Non-reproducible

32%

 

43%

 
 

Divergent

11%

 

20%

 
  1. Q1: Absence of portal hypertension, Q2: Presence of portal hypertension. a, agreed by at least 6 pathologists; CI, confidence interval; b, unweighted, within normal limits versus abnormal; c, consensus to no consensus or vice versa; INCPH, idiopathic noncirrhotic portal hypertension; WNL, within normal limits by consensus