Table 3.

Univariable and multivariable Cox regression analysis of mortality

	Univariate		Multivariate
	HR (95% CI)	p	HR (95% CI)	p
Dementia (GDS ≥ 4)	1.567 (0.859/2.857)	0.143	3.012 (1.373/6.705)	0.017
Delirium (prevalent)	2.372 (1.628/3.454)	< 0.001	–	0.777
Delirium (incident)	1.857 (1.276/2.702)	0.001	1.728 (1.104/2.705)	0.017
CURB-65: 0–1 (low risk)	1	–	1
CURB-65: 2 (moderate risk)	3.350 (1.557/7.208)	0.002	3.802 (1.639/8.816)	0.002
CURB-65: 3–5 (high risk)	7.764 (3.723/16.191)	< 0.001	7.991 (3.555/17.965)	< 0.001
ACEI	0.578 (0.368/0.910)	0.018	0.428 (0.253/0.725)	0.002
Hydroxychloroquine	0.415 (0.263/0.654)	< 0.001	0.372 (0.220/0.627)	< 0.001
No anticoagulant treatment	1		1
Prophylactic dose	0.347 (0.202/0.598)	< 0.001	0.380 (0.196/0.736)	0.004
Therapeutic dose	0.395 (0.217/0.720)	0.002	0.331 (0.163/0.671)	0.002

Bold value indicates statistical significance