Table 1. Results of the Oxacillin Susceptibility Patterns and mecA Gene in the Coagulase-Negative Staphylococci Isolates.

Method	Number of Isolates				Sensitivity a	Specificity a
	mecA Positive (n = 92)		mecA Negative (n = 30)
	True Positive	False Positive	True Negative	False Negative
Disk agar diffusion	83	9	20	10	89.2	69
Agar screen, 0.6 µg/mL	92	0	24	6	93.9	100
Agar screen, 4 µg/mL	92	0	24	6	94	100
Agar screen, 6 µg/mL	89	3	24	6	93.7	88.9

^aData are presented as %.