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Comparison of cefoxitin disk diffusion test and mecA gene detection
| ZD ≤ 21 mm (R) | ZD ≥ 22 mm (S) | Total | |
|---|---|---|---|
| Cefoxitin ZD (mm) | |||
| + | 40 | 0 | 40 |
| mecA gene | |||
| − | 36 | 132 | 168 |
| Total | 76 | 132 | 208 |
Notes: Sensitivity = 100%; specificity = 78.6%; PPV = 52.6%; NPV = 100%.
Abbreviations: ZD, zone diameter; R, resistant; S, sensitive; PPV, positive predictive value; NPV, negative predictive value.
