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Table 5 SCTO metrics

From: SNOMED CT standard ontology based on the ontology for general medical science

Metric Value
Number of classes 304
Axioms 2400
Object properties 8
Data properties 20
Maximum number of parents 3
Average number of siblings 3.62
Maximum number of children 66
Average number of children 3
Classes with more than 25 children 1
Classes with a single child 25
Maximum number of siblings 66
Subclass axioms 330
Annotations 1555
Maximum depth 8