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. 2014 Dec 23;28(3):272–282. doi: 10.1007/s10278-014-9751-7

Table 3.

Definition and formula of the evaluation metrics

Name Description and formula
1. N Number of cases N *,*
2. CI—Mention/Specialization Percentage of cases with CHI rated Mention/Specialization N 1,*/N *,*
3. CI—Generalization Percentage of cases with CHI rated Generalization N 2,*/N *,*
4. CI—Common comorbidity Percentage of cases with CHI rated Common comorbidity N 3,*/N *,*
5. CI—No mention Percentage of cases with CHI rated No mention N 4,*/N *,*
6. Hx—Mention/Specialization Percentage of cases with CHR rated Mention/Specialization N *,1/N *,*
7. Hx—Generalization Percentage of cases with CHR rated Generalization N *,2/N *,*
8. Hx—Common comorbidity Percentage of cases with CHR rated Common comorbidity N *,3/N *,*
9. Hx—No mention Percentage of cases with CHR rated No mention N *,4/N *,*
10. No documented evidence Percentage of cases lacking documented evidence that condition was known, that is, percentage of cases in which condition is neither mentioned in the CHI nor in the CHR (i.e., both No mention) N 4,4/N *,*
11. Improvement rate Percentage of cases in which CHR is more informative than CHI, given that the condition was not mentioned in the CHI (i.e., rated Mention/Specialization) (N 2,1 + N 3,1 + N 4,1 + N 4,2 + N 4,3)/(N 2,* + N 3,* + N 4,*)
12. Refinement rate Percentage of cases in which condition is mentioned in CHR, given that it was indirectly mentioned in the CHI (N 2,1 + N 3,1)/(N 2,* + N 3,*)
13. Treasure hunt rate Percentage of cases in which condition is (indirectly) mentioned in CHR, given that it was not mentioned in the CHI (i.e., rated No mention) (N 4,1 + N 4,2 + N 4,3)/N 4,*