Table 2.

Coverage of symptoms and findings in the medical knowledge base of the diagnostic decision support system (N=20).

Coverage category	Cases with missing relevant information, n (%)
Diagnostic findings (including laboratory, imaging, and histology)	20 (100)
Medical history (pre-existing condition, social, family, and medication)	20 (100)
History or examination findings	9 (45)
Attributes (investigation findings and factors)	6 (30)
Final diagnosis (first diagnosis)	4 (20)
Physiological finding≠negative pathological finding	4 (20)