Table 2.

Cox Proportional Hazards Regression Model

	Beta	Standard Error	Z Score	Hazard Ratio	95% Confidence Interval	−Log L × 1,000
Unadjusted
Age (CA)	0.076	0.007	10.878	1.079	1.074–1.094	3.2464
BAE	0.025	0.002	10.650	1.025	1.021–1.030	3.2560
BAEC	0.038	0.003	11.792	1.039	1.032–1.046	3.2444
FI-LAB	0.032	0.004	7.607	1.032	1.024–1.041	3.2819
FI-CSHA	0.028	0.004	7.410	1.029	1.021–1.037	3.2819
FI-combined	0.051	0.005	9.873	1.051	1.041–1.063	3.2616
Adjusted
Sex	−0.296	0.093	−3.186	0.744	0.617–0.896	3.2199
Age	0.062	0.008	8.11	1.063	1.048–1.080
BAE	0.018	0.003	6.817	1.018	1.012–1.023
Sex	−0.296	0.093	−3.186	0.744	0.617–0.896	3.2199
Age	0.053	0.008	6.481	1.054	1.037–1.072
BAEC	0.026	0.004	6.817	1.027	1.019–1.035
Sex	0.221	0.094	−2.352	0.892	0.665–0.967	3.2282
Age	0.072	0.007	9.926	1.074	1.059–1.090
FI-LAB	0.025	0.004	5.286	1.028	1.014–1.031
Sex	−0.303	0.093	−3.2252	0.738	0.613–0.890	3.2258
Age	0.074	0.007	10.240	1.077	1.062–1.093
FI-CSHA	0.024	0.004	5.774	1.023	1.015–1.031
Sex	0.239	0.093	−2.556	0.785	0.653–0.949	3.2156
Age	0.068	0.007	9.360	1.071	1.055–1.086
FI-combined	0.040	0.005	7.375	1.041	1.030–1.052

Notes: BA = biological age; CA = chronological age; CSHA = Canadian Study of Health and Aging; FI = frailty index.