Table 1.
Sensitivity, Specificity, Predictive Value Positive, and Predictive Value Negative of the Culture and Real-Time PCR Assays for S. aureus Directly from Nasal Swab Specimens
| Population (n) | Sensitivity | Specificity | Predictive value of a positive test | Predictive value of a negative test |
|---|---|---|---|---|
| Neonate culture (299) | 92% | 100% | 100% | 98% |
| Neonate PCR (299) | 96% | 100% | 100% | 99% |
| Adult culture (151) | 90% | 100% | 100% | 95% |
| Adult PCR (151) | 100% | 98% | 96% | 100% |
| Total subjects culture (450) | 90% | 100% | 100% | 98% |
| Total subjects PCR (450) | 98% | 99% | 98% | 99% |