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Table 3 Comparison and agreement of GAVE detection between WLE and VIST versus pathology as the gold standard

From: The classification of gastric antral vascular ectasia in cirrhotic patients by Versatile Intelligent Staining Technology

  Pathology results Sp (%) Sn (%) FPR FNR McNemar
p
Kappa measure of agreement
Negative biopsy (N = 22) Positive biopsy (N = 28)
(−ve)
Endoscopy
(+ve)
Endoscopy
(−ve)
Endoscopy
(+ve)
Endoscopy
WLE 21 1 26 2 95.5 7.1 4.5 92.9 <.001* K.023, p.701
VIST 13 9 5 23 59.1 82.1 40.9 17.9 .424 K.421, p.035*
  1. McNemar test for comparing proportion between VIST and pathology results
  2. WLE white light endoscopy, VIST Versatile Intelligent Staining Technology, Sp specificity, Sn sensitivity, FPR false positive rate, FNR false negative rate, K Kappa Measure of agreement, *: statistically significant where p value≤ 0.05