Comparative Study of Clostridium difficile Clinical Detection Methods in Patients with Diarrhoea

Table 5

Diagnostic parameters of laboratory test methods.

Method	Sensitivity	Specificity	PPV	NPV	Kappa value
The GeneXpert C. difficile PCR assay	1.000	0.968	0.889	1.000	0.925
The VIDAS enzyme immunoassay	0.556	1.000	1.000	0.884	0.659