Table 3.

Diagnostic accuracy of frailty screening tools according to age group

Screening tools	AUC (95% CI)	P-value	∆AUC (95% CI)	P-value
Handgrip
< 65 years	0.66 (0.46–0.86)	0.123	0.08 (−0.34–0.18)	0.564
≥ 65 years	0.73 (0.57–0.90)	0.006
Gait speed
< 65 years	0.98 (0.96–1.00)	< 0.001	0.20 (0.04–0.35)	0.013
≥ 65 years	0.79 (0.64–0.94)	< 0.001
TUG
< 65 years	0.95 (0.87–1.00)	< 0.001	0.08 (−0.08–0.23)	0.350
≥ 65 years	0.87 (0.73–1.00)	< 0.001
STS-5
< 65 years	0.92 (0.82–1.00)	< 0.001	0.11 (−0.09–0.30)	0.277
≥ 65 years	0.81 (0.65–0.97)	< 0.001
SF-36 PF
< 65 years	0.81 (0.67–0.96)	< 0.001	0.03 (−0.18–0.24)	0.786
≥ 65 years	0.78 (0.63–0.94)	< 0.001
SF-36 PCS
< 65 years	0.83 (0.66–0.99)	< 0.001	0.08 (−0.15–0.32)	0.487
≥ 65 years	0.74 (0.58–0.91)	0.004
IPAQ
< 65 years	0.80 (0.63–0.97)	< 0.001	0.06 (−0.27–0.15)	0.549
≥ 65 years	0.87 (0.75–0.99)	< 0.001
FES
< 65 years	0.87 (0.76–0.98)	< 0.001	0.02 (−0.16–0.19)	0.853
≥ 65 years	0.85 (0.72–0.99)	< 0.001

Abbreviations: AUC Area under the curve, ∆AUC Difference in area under the curve, CI Confidence interval, TUG Timed up and go test, STS-5 Five-seconds sit to stand test, SF-36 PF Physical function score of SF-36 questionnaire, SF-36 PCS Physical composite scale of SF-36 questionnaire, IPAQ International physical activity questionnaire (short format), FES Tinetti falls efficacy scale