Table.

Mean sensitivities and specificities of media for detection of GRE after 24 hrs incubation

Samples	Variable	Medium for GRE detection	Aggregated				Penalised
			Sensitivity (%)		Specificity (%)		Sensitivity (%)		Specificity (%)
			Mean	95% CI	Mean	95% CI	Mean	95% CI	Mean	95% CI
Stools	Reader response	ECCVa	86.1	77.6–92.1	98.8	96.0–99.7	NA*	NA	NA	NA
		VRE Selectiveb	57.0	44.6–69.1	93.7	86.6–97.5	NA	NA	NA	NA
		ChromIDc	83.3	73.7–90.0	98.9	96.1–99.7	82.9	73.8–89.5	98.6	95.6–99.6
		CHROMagard	91.4	85.5–95.2	96.2	91.8–98.4	88.6	82.2–93.2	95.5	90.5–98.0
	Confirmation tests	ECCVa	82.9	74.1–89.5	99.1	96.6–99.8	NA	NA	NA	NA
		VRE Selectiveb	33.5	23.6–44.6	98.4	95.5–99.5	NA	NA	NA	NA
		ChromIDc	72.3	61.6–81.3	99.4	97.4–99.9	64.8	53.7–76.8	98.1	94.3–99.4
		CHROMagard	72.0	61.7–80.7	98.5	96.2–99.5	67.9	57.6–76.8	94.4	89.4–97.2
Isolates	Reader response	ECCVa	83.4	77.7–87.8	96.3	91.7–98.3	NA	NA	NA	NA
		VRE Selectiveb	65.9	58.3–72.8	94.2	87.8–97.2	NA	NA	NA	NA
		ChromIDc	87.3	82.3–91.0	97.4	93.9–98.9	78.2	72.2–83.1	95.1	90.0–97.6
		CHROMagard	91.5	87.4–94.2	99.7	98.3–99.9	86.4	81.4–90.1	99.4	97.0–99.9

^*Selective media do not differentiate between GRE. faecalis/faecium and thus, the aggregated and penalised responses are the same.

^aBD, BE

^bOxoid, UK

^cBioMérieux, FR

^dCHROMagar Microbiology, FR.