Table 1 PCR/ESI-MS performance vs blood culture.
| CULTURE | ||||
| POSITIVE | NEGATIVE | TOTAL | ||
| PCR/ESI-MS | POSITIVE | 54 | 169 | 223 (36%) |
| NEGATIVE | 13 | 380 | 393 (64%) | |
| TOTAL | 67 (11%) | 549 (89%) | 616 |
| CULTURE | ||||
| POSITIVE | NEGATIVE | TOTAL | ||
| PCR/ESI-MS | POSITIVE | 54 | 169 | 223 (36%) |
| NEGATIVE | 13 | 380 | 393 (64%) | |
| TOTAL | 67 (11%) | 549 (89%) | 616 |