Table 2.

Mortality at 1-year follow-up

Variable	HR	2.5–97.5%
Cognitive status
Control	1.00	Ref
Cognitive impairment	1.66	0.99–2.81, p = 0.06
Age	1.08	1.03–1.13, p = 0.001
Sex
Male	1.00	Ref
Female	0.81	0.47–1.40, p = 0.46
ASA
1–2	1.00	Ref
3–4	1.04	0.62–1.75, p = 0.89

Cox proportional hazard including adjusted variables and presented as hazard ratio

The bold value is significant at p < 0.05