TABLE 2.

Comparative yield of 618 clinically significant isolates of bacteria and yeasts from FAN aerobic-FAN anaerobic bottle pair by bottle type

Microorganism(s)	No. of isolates from:			P valuea
	Both bottles	FAN aerobic bottle only	FAN anaerobic bottle only
Gram-positive cocci	250	60	66	NS
S. aureus	120	18	39	0.005
Coagulase-negative Staphylococcus	60	23	9	0.01
Enterococcib	20	5	12	NS
S. pneumoniae	17	7	1	0.03
Other streptococcic	33	6	4	NS
Other gram-positive coccid	0	1	1	NC
Listeria monocytogenes	1	0	0	NC
Gram-negative bacilli	127	48	34	NS
E. coli	70	18	21	NS
Other Enterobacteriaceaee	51	19	12	NS
Other gram-negative bacillif	6	11	1	0.004
Anaerobesg	9	0	16	<0.001
Yeastsh	0	7	0	NC
Total (no. [%])	387 (62.6)	115 (18.6)	116 (18.8)	NS

^aNS, not significant (P > 0.05); NC, not calculated when total number of isolates was ≤10.

^bIncludes 11 Enterococcus faecium, 23 Enterococcus faecalis, and 3 Enterococcus sp. isolates.

^cIncludes 5 group A, 26 group B, 2 group G, and 6 viridans group streptococci, 3 Streptococcus bovis, and 1 S. bovis var. isolate.

^dIncludes one Gamella sp. and one Abiotropia sp. isolate.

^eIncludes 6 Citrobacter freundii, 3 Enterobacter agglomerans, 2 Enterobacter aerogenes, 3 Enterobacter cloacae, 1 Enterobacter sakazaki, 2 Klebsiella oxytoca, 28 Klebsiella pneumoniae, 15 Proteus mirabilis, 1 Proteus penneri, 2 Providencia stuartii, 4 Salmonella spp., and 15 Serratia marcescens isolates.

^fIncludes one Acinetobacter lwoffii, one Aeromonas sp., one Campylobacter fetus, five Haemophilus spp., nine Pseudomonas aeruginosa, and one Stenotrophomonas maltophilia isolate.

^gIncludes two anaerobic gram-positive cocci, two Bacteroides fragilis, two B. fragilis group, one Bacteroides caccae, one Bacteroides thetaiotaomicron, two Bacteroides vulgatus, one Bacteroides eggerthii, one Bacteroides urealyticus, one Bifidobacterium sp., three Clostridium perfringens, three Clostridium septicum, one Clostridium sp. (not perfringens), four Eubacterium lentum, and one Fusobacterium nucleatum isolate.

^hIncludes two Candida albicans, one Candida glabrata, one Candida guillermondii, two Candida tropicalis, and one Candida sp. (not Candida albicans) isolate.