The Performance of Direct Disk Diffusion for Community Acquired Bacteremia due to Gram-Negative Bacilli and Its Impact on Physician Treatment Decisions

Table 3

Agreement between direct and standard susceptibility by species.

Species ()	Mean agreement rate (%)	Mean very major; error rate (%)	Mean major error rate  (%)
E. coli (48)	81.6	0	3.0
E. coli ESBL (7)	81.8	7.8	0
Klebsiella pneumoniae (13)	73.4	11.9	0
Proteus mirabilis (5)	58.2	27.3	0
Enterobacter sp. (5)	81.8	1.8	0
Klebsiella oxytoca (3)	57.6	6.0	3.0
Klebsiella oxytoca ESBL (1)	100	0	0
Serratia marcescens (3)	81.8	3.0	0
Pseudomonas aeruginosa (3)	90.9	0	3.0
Burkholderia cepacia (1)	90.0	10	0