TABLE 4.

Comparative yields of clinically important episodes of infection detected in BM and BD blood culture bottles

Microorganism(s)	No. of episodes detected in:			P value
	Both bottles	BM bottles only	BD bottles only
Staphylococcus aureus	75	10	4	NSa
Coagulase-negative staphylococci	28	4	2	NS
Streptococcus spp.b	7	1	1	NS
Enterococcus spp.c	31	4	10	NS
Enterobacteriaceaed	39	5	4	NS
Other gram-negative bacteriae	19	4	4	NS
Yeastsf	19	13	3	<0.025
All microorganisms	220g	41	30h	NS

^aNS, not significant (P > 0.05).

^bIncludes three viridans group streptococcus, three Streptococcus pneumoniae, and two Streptococcus bovis isolates and one group G streptococcus isolate.

^cIncludes 30 Enterococcus faecalis and 14 Enterococcus faecium isolates and 1 Enterococcus avium isolate.

^dIncludes 19 Klebsiella pneumoniae, 16 Escherichia coli, 4 Enterobacter cloacae, 2 Proteus mirabilis, and 2 Serratia marcescens isolates and 1 isolate each of Cedecea sp., Citrobacter freundii, Enterobacter aerogenes, Klebsiella oxytoca, and Salmonella enterica serovar Typhi.

^eIncludes 11 Pseudomonas aeruginosa, 8 Acinetobacter baumannii, 4 Stenotrophomonas maltophilia, and 2 Burkholderia cepacia isolates and 1 isolate each of Acinetobacter lwoffii and Alcaligenes spp.

^fIncludes 20 Candida albicans, 10 Candida glabrata, and 3 Candida tropicalis isolates and 1 isolate each of Cryptococcus neoformans and Hansenula anomala.

^gIncludes one isolate each of Aerococcus viridans and Corynebacterium sp.

^hIncludes one isolate each of Clostridium perfringens and Bacteroides thetaiotaomicron.