TABLE 4.

Performance of AST-GP71 card for coagulase-negative Staphylococcus^a

Antimicrobial	No. of isolatesb				EAc (no. [%])	CAd (no. [%])	VMEe (no. [%])	MEf (no. [%])	mEg (no. [%])
	Total	R	I	S
Cefoxitin screen	37	17	0	20	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Ciprofloxacin	37	16	0	21	37 (100)	36 (97.3)	0 (0)	0 (0)	1 (2.7)
Clindamycin	37	10	0	27	37 (100)	36 (97.3)	0 (0)	0 (0)	1 (2.7)
Daptomycin	37	0	0	37	34 (91.9)	36 (97.3)	0 (0)	1 (2.7)	0 (0)
Erythromycin	37	20	1	16	36 (97.3)	36 (97.3)	0 (0)	0 (0)	1 (2.7)
Gentamicin	37	6	2	29	35 (94.6)	34 (91.9)	1 (16.7)	0 (0)	2 (5.4)
Inducible clindamycin resistance	37	12	0	25	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Linezolid	36	0	0	36	36 (100)	36 (100)	0 (0)	0 (0)	0 (0)
Nitrofurantoin	37	0	0	37	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Oxacillin	37	17	0	20	36 (97.3)	37 (100)	0 (0)	0 (0)	0 (0)
Penicillin	35	27	0	8	35 (100)	35 (100)	0 (0)	0 (0)	0 (0)
Quinupristin-dalfopristin	37	0	0	37	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Rifampin	37	0	0	37	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Tigecycline	37	0	0	37	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Trimethoprim-sulfamethoxazole	37	15	0	22	37 (100)	37 (100)	0 (0)	0 (0)	0 (0)
Vancomycin	37	0	0	37	37 (100)	36 (97.3)	0 (0)	0 (0)	1 (2.7)
Total					(98.8)	(98.7)	1	1	6

^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.