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. 2019 May 24;20:248. doi: 10.1186/s12891-019-2637-6

Table 4.

Independent predictors of mortality

	30-day mortality		90-day mortality		1-year mortality
	Odds ratio (95% CI^a)	p-value	Odds ratio (95% CI^a)	p-value	Odds ratio (95% CI^a)	p-value
Age (years)	1.05 (1.03–1.07)	< 0.0001	1.05 (1.03–1.07)	< 0.0001	1.04 (1.03–1.05)	< 0.0001
Male gender	2.08 (1.45–2.98)	< 0.0001	1.91 (1.43–2.56)	< 0.0001	1.73 (1.40–2.19)	< 0.0001
Cognitive impairment uncertain	1.75 (1.03–2.96)	0.037	1.66 (1.09–2.54)	0.018	1.45 (1.02–2.06)	0.037
Cognitive impairment	2.86 (1.95–4.19)	< 0.0001	3.03 (2.24–4.09)	< 0.0001	2.56 (1.99–3.29)	< 0.0001
ASA^b-score	3.44 (2.54–4.65)	< 0.0001	3.34 (2.61–4.26)	< 0.0001	3.09 (2.53–3.77)	< 0.0001

Logistic regression; 8.0% missing

^a95% confidence interval

^bAmerican Society of Anaesthesiologists