Table 2.
UF-5000 results with various cut-off points for bacteria and leukocytes/μl, Youden’s index, and AUC. Minimum cut-off values for each group for which the sensitivity is at least 95% are shown
| SENS% | SPEC% | VPN% | VPP% | FP% | FN% | Youden’s index | ROC | |
|---|---|---|---|---|---|---|---|---|
|
Total 100 CFU/μl |
96.1 | 32.2 | 95.4 | 35.5 | 48.9 | 1.1 | 0.28 | 0.87 |
|
Women 200 CFU/μl |
95.2 | 32.7 | 94.5 | 35.5 | 48.4 | 1.3 | 0.28 | 0.85 |
|
Men 50 CFU/μl |
96 | 43 | 96.8 | 46.8 | 40.9 | 1.1 | 0.39 | 0.91 |
|
>=55 years 100 CFU/μl |
96.6 | 43 | 95.3 | 51.3 | 35 | 1.3 | 0.39 | 0.92 |
|
<55 years 100 CFU/μl |
95 | 25 | 95.6 | 23 | 81.6 | 0.93 | 0.23 | 0.82 |
|
Total 21 WBC/μl |
91.7 | 27.8 | 89.7 | 33 | 52 | 2.3 | 0.21 | 0.77 |