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Table 3 Accuracy of histopathological classification

From: Validation study of villous atrophy and small intestinal inflammation in Swedish biopsy registers

  Samples mailed
to pathologists
Not
Responding
Correctly
classified
Worst case
Scenario#
Normal* 84 7 (8%) 74/77 (96%) 74/84 (88%)
Inflammation* 42 3 (7%) 22/39 (56%)§ 22/42 (52%)
Villous atrophy* 231 21 (9%) 190/210 (90%) 190/231 (82%)
  1. * According to gold standard (= grading by the Swedish National Steering Group for Small Intestinal Pathology).
  2. # Assuming that all missing responses were incorrect.
  3. § Of the misclassified 17 samples with inflammation (according to the steering group, i.e. gold standard), 12 were classified as normal, and 5 as villous atrophy.