Table 1.

Sensitivity and specificity of Modified Hodge test for the detection of carbapenemase-producing Enterobacteriaceae

	OXA-48	KPC	NDM	IMP	VIM	NDM/OXA-48	KPC/OXA-48	carbapenemase (−)	total
TP (n)	39	34	7	4	1	2	2	–	89
FN (n)	2	0	8	3	2	1	0	–	16
TN (n)	–	–	–	–	–	–	–	88	88
FP (n)	–	–	–	–	–	–	–	2	2
Sensitivity (%)a	95.1	100	46.7	57.1	33.3	66.7	100	–	84.8
Specificity (%)b	–	–	–	–	–	–	–	97.8	97.8

^aSensitivity = TP/TP + FN

^bSpecificity = TN/TN + FP

TP true positive, FN false negative, TN true negative, FP false positive