Association between NFI and mortality using Cox proportional hazard model.

Table 3: Association between NFI and mortality using Cox proportional hazard model.

Part A: NFI as continuous variable.

Variables	B	SE	HR	95% CI	P-Value
Age	0.047	0.009	1.049	1.032-1.067	0.001
Male (%)	0.519	0.118	1.680	1.332-2.119	0.001
NFI (continuous)	0.076	0.009	1.079	1.061-1.098	0.001

Note: High blood pressure and year of education were not significant and removed from final model. CI: Confidence Interval; HR: Hazzard Ratio; SE: Standard Error.

Part B: NFI as categorical variable.

Variables	B	SE	HR	95% CI	P value
Age	0.048	0.009	1.049	1.031-1.049	0.001
Male (%)	0.563	0.120	1.757	1.389-2.222	0.001
NFI (≤ 4 deficits)*	--------	-------	--------	-----------------	--------
NFI (5-10 deficit);	0.970	0.394	2.638	1.218-5.714	0.014
NFI (11-18 deficit);	1.541	0.391	4.669	2.169-10.051	0.001
NFI (≥ 19 deficits);	2.216	0.408	9.172	4.122-20.409	0.001

Note: NFI (≤ 3 deficits) is baseline. CI: Confidence Interval; HR: Hazzard Ratio; SE: Standard Error.