From: Accessing the discriminatory performance of FRAIL-NH in two-class and three-class frailty and examining its agreement with the frailty index among nursing home residents in mainland China
Frailty class
FI
FRAIL-NH
Cutoff points
AUC (95% CI)
Sensitivity (%)
Specificity (%)
Youden Index
0.25
4
0.87 (0.84–0.91)
66.1
90.2
0.56
Two-class
0.21
2
0.86 (0.82–0.90)
87.6
66.3
0.54
0.45
8
0.93 (0.89–0.97)
94.1
82.8
0.77