Table 3. GRADE evidence profile for diagnostic test accuracy by detecting glutamate dehydrogenase assay for Clostridium difficile infection (CDI).

This table was based on following statistics: sensitivity 0.911 (95% CI: 0.871 to 0.940), specificity 0.912 (95% CI: 0.892 to 0.928), prevalence 15–25%. PTP: pre-test probability. ^#Most studies had high risk for “flow and timing”.