Effect of frailty status on mortality risk among Chinese community-dwelling older adults: a prospective cohort study

Table 4 Piecewise Cox regression model analysis of the effect of frailty on mortality

	B	SE	Wald	P value	HR	95% CI
	B	SE	Wald	P value	HR	Lower	Upper
FI_11 ≤ 0.5
Age	0.057	0.002	916.001	<0.001	1.059	1.055	1.063
Sex	-0.491	0.035	197.162	<0.001	0.612	0.571	0.655
Residence	-0.141	0.048	8.806	0.003	0.868	0.791	0.953
Marital status	-0.197	0.043	21.259	<0.001	0.821	0.755	0.893
FI	3.891	0.154	634.752	<0.001	48.944	36.162	66.244
FI_11 > 0.5
Age	0.028	0.006	21.437	<0.001	1.028	1.016	1.041
Sex	-0.242	0.115	4.454	0.035	0.785	0.627	0.983
Marital status	-0.382	0.146	6.789	0.009	0.683	0.512	0.910
FI	2.757	0.745	13.681	<0.001	15.758	3.656	67.924

Abbreviations: CI Confidence interval, FI_11 Frailty index in 2011, B Regression coefficients, SE Standard error, HR Hazard Ratio

ISSN: 1471-2318