Gold Standard Evaluation of an Automatic HAIs Surveillance System

Table 9

Confusion matrix, InNoCBR as a semi-automatic diagnostic system VS gold standard with different types of infection (U = Urinary infection, R = Respiratory infection, B = Bloodstream, S = Surgical site infection, C = Cutaneous infection, E = Enteric infection, O = Other type of infection, No/Ex = No infection or extrahospitalary infection).

User with InNoCBR	Infection type (gold standard)
	U	R	B	S	C	E	O	No/Ex	∑
U	65	—	—	—	—	—	—	1	65
R	—	24	—	—	—	—	—	1	24
B	—	—	14	—	—	—	—	1	15
Q	—	—	—	43	—	—	—	—	43
C	—	—	—	—	3	—	—	—	3
E	—	—	—	—	—	2	—	—	2
O	—	—	—	—	—	—	2	1	3
Neg^∗	13 (10)	6 (6)	1 (1)	2 (1)	0 (0)	1 (1)	2 (1)	756 (676)	781
∑	78	30	15	45	3	3	4	760	938

Neg^∗: stands for any classification of InNoCBR different from a HAI: not acquired (indicated in parentheses), ignored, no infection or extrahospitalary infection.