Table 2 Sensibility and specificity to oxacillin in S. aureus samples by phenotypic and genotypic methods
Phenotypic methods | mecA | Sensibility | Specificity | Kappa coefficient | |
|---|---|---|---|---|---|
Positive | Negative | ||||
N = 72 | N = 63 | % | % | k (interpretation) | |
Oxacillin (10 µg) | 13 | 10 | 18.0 | 84.1 | 0.02 Non-concordance |
Cefoxitin (30 µg) | 17 | 11 | 23.6 | 82.5 | 0.07 Non-concordance |
Screeninga | 26 | 18 | 36.1 | 82.5 | 0.35 Satisfactory concordance |