Table 3. Comparison between GDH/toxin EIA test and C. difficile toxin B PCR (N = 6,119)

Ann Clin Microbiol 2025;28(3):14. Application of diagnostic algorithms for Clostridioides difficile infection using a GDH/ toxin test for five years from a single center in Korea: a diagnostic accuracy study

Table 3. Comparison between GDH/toxin EIA test and C. difficile toxin B PCR (N = 6,119)

		C. difficile toxin B PCR
		+	−
GDH + toxin A/B	+	743	263
GDH + toxin A/B	−	157	4,956

Sensitivity: 82.6%; Specificity: 95.0%; PPV: 73.9%; NPV: 96.9%
Abbreviations: EIA, enzyme immunoassay; PCR, polymerase chain reaction; GDH, glutamate dehydrogenase; PPV, positive predictive value; NPV, negative predictive value.