TABLE 2.

Detection of methicillin (oxacillin) resistance among S. aureus isolates by C-MRSA compared to five specific susceptibility testing methods

Susceptibility test method being compared to CHROMagar MRSA medium	% Agreement of MRSA detection (no. of resistant isolates detected/ total no. of isolates)	% Agreement of MSSA detection (no. of susceptible isolates detected/ total no. of isolates)
Oxacillin MIC (n = 336)	94.4 (117/124)	96.7 (205/212)
Oxacillin screen agar (n = 336)	94.3 (116/123)	96.7 (206/213)
Cefoxitin disk (n = 328)	93.7 (118/126)	98.5 (202/205)
PBP2′ latex (n = 331)	95.0 (115/121)	98.1 (203/207)
mecA PCR (n = 334)	95.1 (116/122)	98.1 (208/212)