TABLE 3.

Distribution of doripenem log₂ dilution differences between agar dilution and BMD methods

Organism group	No. of isolates							% agreement
	Total	With log2 dilution differencea:
		−2	−1	0	1	2	≥3	Same	±1	±2
Enterobacteriaceae	98		18	59	19	1	1	60.2	96.8	99.0
Non-Enterobacteriaceae	100	5	15	52	26		2	52.0	93.0	98.0
P. aeruginosa	80	3	11	44	22			55.0	96.3	100.0
A. baumannii	20	2	4	8	4		2	40.0	80.0	90.0
Enterococcus spp.	49	3	16	24	6			49.0	93.9	100.0
Staphylococcus spp.	97	7	12	40	32	6		41.2	86.6	100.0
S. aureus	60	1	8	23	22	6		38.3	88.3	100.0
CoNSb	37	6	4	17	10			45.9	83.8	100.0
Streptococcus spp., not S. pneumoniae	61		8	41	11	1		67.2	98.4	100.0
Streptococcus spp., beta-hemolytic group	39		3	33	3			84.6	100.0	100.0
Streptococcus spp., viridans group	22		5	8	8	1		36.4	95.5	100.0
Total	405	15	69	216	94	8	3	53.3	93.6	99.3

^aNegative number, agar dilution result was lower than BMD result. Positive number, agar dilution result was higher than the BMD result.

^bCoNS, coagulase-negative staphylococci.