TABLE 2.

Time to successful inoculation and AST result for Gram-positive cocci and Gram-negative rods in Vitek 2

Time period	Time (mean ± SD) (h) for:
	Gram-positive cocci (n = 68)			Gram-negative rods (n = 36)
	Brief culture	Control culture	P valuea	Brief culture	Control culture	P valuea
Cultivation time until Vitek 2 inoculation	3.8 ± 0.9	24.0	<0.0001	2.4 ± 0.6	24.0	<0.0001
Duration of Vitek 2 AST	9.8 ± 1.1	9.8 ± 1.8	NSb	8.8 ± 1.4	9.0 ± 2.8	NS
Total time from positive BC subculture to AST result	13.6 ± 1.4	33.8 ± 1.8	<0.0001	11.2 ± 1.7	33.0 ± 2.8	<0.0001

^aBy Wilcoxon signed-rank test.

^bNS, not significant.