TABLE 4.
Sensitivity, specificity, and cost of different tests for rapid identification of C. glabrata
| Method (reference) | Inoculum | Incubation | Sensitivity (%) | Specificity (%) | Cost ($) |
|---|---|---|---|---|---|
| Hardy trehalose fermentation (1) | Four to five colonies | 24 h, 42°C | 96 | 100 | 1.10 |
| Mayo Clinic trehalose assimilation (1; Stockman and Robertsa) | Heavy; not adjusted | 1 h, 35°C | 96.6 | 74.1 | 0.05 |
| Remel rapid trehalose assimilation (1) | Cloudy suspension | 3 h, 42°C | 91.5 | 96.3 | 1.59 |
| Remel yeast fermentation, modified (1, 7) | No. 3–4 McFarland standard | 24 h, 42°C | 95–97.8 | 89–95.8 | 4.15 |
| Rosco diagnostic tablets (current study) | No. 2 McFarland standard | 4 h, 37°C | 100 | 100 | 0.70 |
| Trehalase-generated glucose (8) | One colony/50 μl | 3 h, 37°C | 98.8 | 99.1 | 0.30 |
a
L. Stockman and G. Roberts, Abstr. 85th Annu. Meet. Am. Soc. Microbiol. 1985, abstr. F-80, p. 377, 1985.