| Phenotypic method | Positive* | Negative | Sinsitivity (%) (95% CI) | Specificity (%) (95% CI) | PPV (%) (95% CI) | NPV (%) (95% CI) |
| DDT with oxacillin | ||||||
| Positive | 23 | 0 | 95.83% | 100% | 100% | 97.78% |
| Negative | 1 | 6 | (78.81% - 99.30%) | (91.88% - 100%) | (85.05% - 100%) | (88.19% - 99.63%) |
| DDT with cefoxitine | ||||||
| Positive | 20 | 0 | 83.33% | 100% | 100% | 91.67% |
| Negative | 4 | 6 | (62.6% - 95.16%) | (91.88% - 100%) | (83.01-100%) | (80% - 97.63%) |
| Method of serial dilution with oxacillin | ||||||
| Positive | 24 | 2 | 100% | 95.45% | 92.31% | 100% |
| Negative | 0 | 4 | (85.62% - 100%) | (84.5% - 99.31%) | (74.83% - 98.83%) | (91.51% - 100%) |