TABLE 3.

Comparative yields of clinically important microorganisms from patients on antimicrobial therapy in FAN versus FA aerobic blood culture bottles

Microorganism	No. of isolates detected by:			P value
	Both bottles	FAN bottles only	FA bottles only
Staphylococcus aureus	23	16	2	<0.005
Coagulase-negative staphylococci	3	2	0	NSa
Group B streptococci	0	0	1	NS
Enterococcus faecalis	2	2	0	NS
Members of the family Enterobacteriaceaeb	8	1	0	NS
Other gram-negative bacteriac	2	0	1	NS
Yeastsd	4	1	9	<0.005
All microorganisms	42	22	13	NS

^aNS, not significant (P > 0.05). 

^bIncludes three Escherichia coli, three Klebsiella pneumoniae, and two Serratia marcescens isolates and one Enterobacter cloacae isolate. 

^cIncludes one isolate each of Acinetobacter baumanii, Burkholderia cepacia, and Stenotrophomonas maltophilia. 

^dIncludes nine Candida glabrata, three Candida albicans, and two Cryptococcus neoformans isolates.