Comparison of Different Phenotypic Tests versus PCR in the Detection of Carbapenemase-Producing Pseudomonas aeruginosa Isolates in Hamadan, Iran

Table 5

Results of sensitivity, specificity, NPV, PPV in CarbaNP versus CIM test.

	No.	CarbaNP				No.	CIM				MIC
		Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)		Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
A	11/11	100	100	100	100	11/11	100	100	100	100	>32
B	40/40	100	100	100	100	39/40	97	100	100	88	8 to.32
C	24/25	96	100	100	96	22/25	89	100	100	88	8 to.32
D	34/35	97	100	100	93	33/35	94	100	100	87	8 to.32
IMP	20/20	100	100	100	100	20/20	100	100	100	100	8 to.32
VIM	19/19	100	100	100	100	19/19	100	100	100	100	8 to.32
SIM	8/8	100	100	100	100	8/8	100	100	100	100	8 to.32
SPM	17/17	100	100	100	100	17/17	100	100	100	100	8 to.32
GIM	21/21	100	100	100	100	21/21	100	100	100	100	8 to.32

NPV: negative predictive values. PPV: positive predictive values.