Table 2.

The variables in the contingency matrix of CHI and CHR that are used to define the evaluation metrics

		Clinical history section in report (CHR)
		Mention/Specialization	Generalization	Common comorbidity	No mention	Sum
Clinical history and indication (CHI)	Mention/Specialization	N 1,1	N 1,2	N 1,3	N 1,4	N 1,*
	Generalization	N 2,1	N 2,2	N 2,3	N 2,4	N 2,*
	Common comorbidity	N 3,1	N 3,2	N 3,3	N 3,4	N 3,*
	No mention	N 4,1	N 4,2	N 4,3	N 4,4	N 4,*
	SUM	N *,1	N *,2	N *,3	N *,4	N *,*