TABLE 2.

Simpson's index of diversity (D) for genotyping methods^a

Method	No. of units	D	95% CI
tcdC	13	0.841	(0.821-0.862)
MLST	17	0.879	(0.855-0.903)
REA types	92	0.979	(0.970-0.987)
MLVA	143	0.998	(0.997-1.000)

^aCI, confidence interval.