TABLE 1.

Toxigenic C. difficile prevalence in stool specimens, according to patient age

Patient age	No. of samplesa					Sensitivity (%)	Specificity (%)	Positivity rate (%)
	TP	TN	FP	FN	Total
<2 yr	3	6	0	0	9	100	100	33.3
3–18 yr	15	85	3	2	105	81.8	96.8	17.1
19–60 yr	120	1,022	26	31	1,199	83.7	97.3	12.6
>60 yr	145	956	30	17	1,148	90.9	97.3	14.1
Total	283	2,069	59	50	2,461	85.0	97.2	13.5

^aValues are based on comparisons of Revogene and combined TC results.