Table 3.

The AUC With 95% Confidence Intervals for Different Combinations of Variables and Their Combinations*

	AUC	95% Confidence Interval
Age + sex	0.698	0.665–0.730
BAE + sex	0.679	0.646–0.712
BAEC + sex	0.699	0.667–0.731
Age + sex + BAE	0.726	0.695–0.757
Age + sex + BAEC	0.726	0.695–0.757
Age + sex + FI-LAB	0.715	0.684–0.747
Age + sex + FI-CSHA	0.725	0.694–0.756
Age + sex + FI-combined	0.735	0.705–0.766

Notes: AUC = area under the receiving-operating characteristic; BA = biological age; CSHA = Canadian Study of Health and Aging; FI = frailty index.

*BA_EC was calculated with ε = 0.5 $s_{\text{BA}}^2\mathrm{=350}$