TABLE 2.
Comparison of phenotypic and vibrational spectroscopic identifications of patient samples included in the prospective studya
| Organism(s) | Raman spectroscopy
|
IR spectroscopy
|
||
|---|---|---|---|---|
| No. (%) identified correctly | Misidentification(s) (no. of strains) | No. (%) identified correctly | Misidentification (no. of strains) | |
| S. aureus | 19 (100) | 27 (96.4) | S. aureus (1) | |
| CNS | 37 (97.4) | Streptococcus sp. (1) | 52 (98.1) | CNS (1) |
| E. coli | 22 (91.7) | E. aerogenes (2) | 12 (100) | |
| E. cloacae | 2 (40) | E. aerogenes (3) | 2 (100) | |
| E. aerogenes | 3 (100) | |||
| P. aeruginosa | 5 (100) | 1 (100) | ||
| E. faecalis group | 3 (100) | 6 (100) | ||
| E. faecium group | 1 (100) | 5 (100) | ||
| Streptococcus spp. | 8 (72.7) | E. faecalis (2), E. aerogens (1) | 7 (100) | |
| Candida albicans | 6 (100) | 5 (100) | ||
| Candida glabrata | 1 (100) | |||
| Candida tropicalis | 1 (100) | |||
a
For Raman spectroscopy, 115 samples were included, and for IR spectroscopy, 121 samples were included.