TABLE 1.
Comparison of the GLABRATA RTT test (RTT) and the dipstick test, described by Peltroche-Llacsahuanga et al. (DT) for the rapid identification of Candida glabrata
| Parametera | No. of strains tested | No. of strains identified as C. glabratab
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Chromagar Candida
|
Candida ID
|
SAB 4%
|
SAB 2%
|
Blood agar
|
|||||||
| RTT | DT | RTT | DT | RTT | DT | RTT | DT | RTT | DT | ||
| C. glabrata | 90 | 87 | 61 | 86 | 88 | 82 | 81 | 87 | 82 | 84 | 86 |
| Non-C. glabrata | 242 | 1 | 28 | 5 | 77 | 1 | 26 | 4 | 34 | 39 | 103 |
| Sensitivity (%) | 96.7 | 67.8 | 95.6 | 97.8 | 91.1 | 90 | 96.7 | 91.1 | 93.3 | 95.6 | |
| Specificity (%) | 99.6 | 88.4 | 97.9 | 68.2 | 99.6 | 89.3 | 98.3 | 86.0 | 83.9 | 57.4 | |
| PPV (%) | 98.9 | 68.5 | 94.5 | 53.3 | 98.8 | 75.7 | 95.6 | 70.7 | 68.3 | 45.5 | |
| NPV (%) | 98.8 | 88.1 | 98.3 | 98.8 | 96.4 | 96.2 | 98.8 | 96.7 | 97.1 | 97.2 | |
| Efficiency (%) | 98.8 | 82.8 | 97.3 | 76.2 | 97.3 | 89.5 | 97.9 | 87.4 | 86.5 | 67.8 | |
a
PPV, positive predictive value; NPV, negative predictive value.
b
SAB, Sabouraud with 4 or 2% glucose.