TABLE 2.

Clinical and challenge performance of ETEST PLZ^a

	Organism	Total	EA	%EA	Total evaluable	EA of evaluable	CA	%CA	#R	#VME	#ME	#min
Challenge	C. freundii	6	6	100.0%	6	6	6	100.0%	0	.	0	0
	C. koseri	3	3	100.0%	3	3	3	100.0%	0	.	0	0
	E. cloacae	10	10	100.0%	10	10	10	100.0%	0	.	0	0
	E. coli	13	13	100.0%	8	8	10	76.9%	5	0	0	3
	K. aerogenes	6	6	100.0%	6	6	6	100.0%	1	0	0	0
	K. oxytoca	7	7	100.0%	7	7	6	85.7%	0	.	0	1
	K. pneumoniae	17	17	100.0%	13	13	16	94.1%	7	0	0	1
	M. morganii	3	3	100.0%	3	3	2	66.7%	2	0	0	1
	P. mirabilis	4	4	100.0%	4	4	4	100.0%	2	0	0	0
	P. vulgaris	5	5	100.0%	5	5	3	60.0%	0	.	0	2
	P. stuartii	2	2	100.0%	1	1	2	100.0%	1	0	0	0
	S. marcescens	4	4	100.0%	4	4	4	100.0%	0	.	0	0
	Subtotal	80	80	100.0%	70	70	72	90.0%	18	0	0	8
Clinical	C. freundii	53	53	100.0%	52	52	53	100.0%	1	0	0	0
	C. koseri	31	30	96.8%	31	30	31	100.0%	0	.	0	0
	E. cloacae	50	50	100.0%	48	48	50	100.0%	2	0	0	0
	E. coli	65	63	96.9%	64	62	65	100.0%	1	0	0	0
	K. aerogenes	32	32	100.0%	31	31	32	100.0%	1	0	0	0
	K. oxytoca	32	32	100.0%	31	31	31	96.9%	1	0	0	1
	K. pneumoniae	72	72	100.0%	63	63	72	100.0%	11	0	0	0
	M. morganii	28	27	96.4%	28	27	19	67.9%	3	0	0	9
	P. mirabilis	59	59	100.0%	57	57	50	84.7%	6	0	0	9
	P. vulgaris	29	29	100.0%	29	29	26	89.7%	1	0	0	3
	P. stuartii	33	33	100.0%	30	30	24	72.7%	7	0	0	9
	S. marcescens	34	32	94.1%	34	32	30	88.2%	1	1	0	3
	Subtotal	518	512	98.8%	498	492	483	93.2%	35	1	0	34
Combined	Total	598	592	99.0%	568	562	555	92.8%	53	1	0	42

^aEA, essential agreement; CA, category agreement; R, resistant; VME, very major error; ME, major error; min, minor error.