TABLE 5.

Cox proportional hazard models for all-cause mortality.

Model	Variables	All-cause mortality during the first year				All-cause mortality during entire follow-up period
		Hazard ratio	95.0% CI		P	Hazard ratio	95.0% CI		P
			Lower	Upper			Lower	Upper
1	FI-LAB (groups)
	Robust (reference)	1.000				1.000
	Mildly frail	1.666	0.710	3.910	0.241	1.144	0.766	1.710	0.511
	Moderately frail	2.38	1.062	5.333	0.035	1.499	1.024	2.195	0.037
	Severely frail	3.802	1.744	8.289	<0.001	2.176	1.508	3.139	<0.001
	Gender (female)	0.644	0.422	0.982	0.041	0.732	0.568	0.943	0.016
	Age (years)	1.028	1.000	1.057	0.047	1.042	1.025	1.059	<0.001
	Any complication	2.083	1.300	3.336	0.002	1.555	1.213	1.993	<0.001
	CCI	1.037	0.967	1.111	0.310	1.097	1.052	1.143	<0.001
2	FI-LAB (continuous)	1.036	1.017	1.056	<0.001	1.027	1.016	1.038	<0.001
	Gender (male)	0.632	0.414	0.966	0.034	0.731	0.567	0.941	0.015
	Age (years)	1.030	1.002	1.058	0.036	1.042	1.026	1.059	<0.001
	Any complication	2.081	1.297	3.339	0.002	1.551	1.209	1.989	<0.001
	CCI	1.033	0.963	1.108	0.369	1.094	1.049	1.141	<0.001

CCI, the Charlson Comorbidity Index.