Table 2 Frailty cut-point for original T-FRAIL with TFI as the reference standard
Frailty cut-points | Number of frail patients (%) | Sensitivity (%) | Specificity (%) | Youden’s Index (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|---|---|
≥ 1 | 182 (60.7%) | 93.3 | 61.1 | 54.4 | 61.5 | 93.2 |
≥ 2 | 119 (39.7%) | 77.5 | 85.6 | 63.1 | 78.2 | 85.1 |
≥ 3 | 57 (19.0%) | 45.0 | 98.3 | 43.3 | 94.7 | 72.8 |
≥ 4 | 10 (3.3%) | 8.3 | 100 | 8.3 | 100 | 62.1 |