Table 2.

Sensitivity, specificity, positive and negative predictive value of SuperCAZ/AVI^® medium

	Total isolates	CAZ-AVI resistant isolates	CAZ-AVI susceptible isolates	Sensitivity % [95% CI]	Specificity % [95% CI]	PPV % [95% CI]	NPV % [95% CI]
KPC-producing Enterobacteralesa	153	91	62	100 [96–100%]	71 [58–81.8]	83.5 [77.4–88.2]	100
MβL-producing Enterobacteralesb	36	36	0	100 [90.3–100]	-	100	-
OXA-48-like-producing Enterobacteralesc	8	0	8	-	87.5 [47.3–99.7]		100
Carbapenem-resistant non-carbapenemase producing-Enterobacteralesd	5	0	5	-	80 [28.4–99.5]		100
Carbapenem-resistant Pseudomonas aeruginosa	64	21	43	100 [83.9–100]	90.7 [77.9–97.4]	84 [67.4–93]	100
Carbapenem-resistant A. baumannii complex	20	20	0	100 [83.2–100]	-	100	-
All isolates grown on CRE mediume	365	168	197	100 [97.8–100]	86.8 [81.3–91.2]	86.6 [81.9–90.2]	100

^aK. pneumoniae, n = 145; E. coli, n = 8

^bEnterobacter cloacae, n = 18, E. coli n = 9; K. pneumoniae, n = 7; Morganella morganii, n = 2

^cE. coli, n = 5; K. pneumoniae, n = 3

^dK. pneumoniae, n = 3; E. coli, n = 2

^eIncluding carbapenem-susceptible and/or non-carbapenemase-producing isolates