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Table 4 The 2 × 2 contingency table for erroneous small partial-area concepts and erroneous large partial-area concepts in the SNOMED CT Specimen hierarchy (with a two-tailed p value = 0.0226 < 0.05 by Fisher’s exact test)

From: Outlier concepts auditing methodology for a large family of biomedical ontologies

  # Erroneous concepts # Concepts w/o errors Error percentage (%)
Small partial-areas (1–9) 11 38 22.4
Large partial-areas (≥ 9) 3 48 5.9