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Table 8 The QA study results on the SNOMED CT’s Eye/vision finding subhierarchy

From: Missing lateral relationships in top-level concepts of an ontology

Level # concepts # audited concepts % of concepts audited # concepts missing relationships % of concepts missing relationships
0 1 0 0 0  
1 19 0 0 0  
2 58 0 0 0  
3 132 8 6.06 6 75
4 250 18 7.20 6 33.33
5 323 29 8.98 8 27.59
6 272 19 6.99 9 47.37
7 165 18 10.91 11 61.11
8 54 4 7.41 2 50
9 25 0 0 0  
10 2 0 0 0  
Total 1301 96 7.38 42 43.75