TABLE 2.

Performance of AST-GP71 card for S. aureus^a

Antimicrobial	No. of isolatesb				EAc (no. [%])	CAd (no. [%])	VMEe (no. [%])	MEf (no. [%])	mEg (no. [%])
	Total	R	I	S
Cefoxitin screen	94	58	0	36	94 (100)	94 (100)	0 (0)	0 (0)	0 (0)
Ciprofloxacin	94	56	4	34	93 (98.9)	93 (98.9)	0 (0)	0 (0)	1 (1.1)
Clindamycin	94	41	0	53	94 (100)	94 (100)	0 (0)	0 (0)	0 (0)
Inducible clindamycin resistance	94	30	0	64	94 (100)	88 (93.6)	6 (20)	0 (0)	0 (0)
Daptomycin	94	2	0	92	87 (92.5)	93 (98.9)	0 (0)	1 (1.1)	0 (0)
Erythromycin	94	74	3	17	89 (94.7)	91 (96.8)	0 (0)	0 (0)	3 (3.2)
Gentamicin	94	8	0	86	94 (100)	93 (98.9)	0 (0)	0 (0)	1 (1.1)
Linezolid	94	0	0	94	93 (98.9)	94 (100)	0 (0)	0 (0)	0 (0)
Nitrofurantoin	94	0	0	94	94 (100)	94 (100)	0 (0)	0 (0)	0 (0)
Oxacillin	94	58	0	36	94 (100)	94 (100)	0 (0)	0 (0)	0 (0)
Penicillin	94	89	0	5	93 (98.9)	94 (100)	0 (0)	0 (0)	0 (0)
Quinupristin-dalfopristin	94	0	0	94	94 (100)	94 (100)	0 (0)	0 (0)	0 (0)
Rifampin	94	7	0	87	93 (98.9)	94 (100)	0 (0)	0 (0)	0 (0)
Tigecycline	94	0	0	94	93 (98.9)	94 (100)	0 (0)	0 (0)	0 (0)
Trimethoprim-sulfamethoxazole	94	11	0	83	94 (100)	94 (100)	0 (0)	0 (0)	0 (0)
Vancomycin	94	0	0	94	94 (100)	91 (96.8)	0 (0)	0 (0)	3 (3.2)
Total					(98.7)	(98.9)	6	1	8

^aResults calculated following resolution of discrepancies after repeat testing.

^bR, resistant; I, intermediate; S, susceptible.

^cEA, essential agreement (MIC within ±1 doubling dilution).

^dCA, categorical agreement.

^eVME, very major error.

^fME, major error.

^gmE, minor error.