Table 5.

Important prognostic variables identified by logistic regression models fitted for 30-day and 72-hour mortality

Outcome	Model	Estimate (SE)	OR (95% CI)	P value
30-day mortality	CFS score (≥5)	0.94 (0.20)	2.55 (1.74 to 3.74)	<0.001*
	Urea (>7mmol/L)	0.92 (0.19)	2.50 (1.71 to 3.65)	<0.001*
	Consolidation	0.71 (0.24)	2.04 (1.26 to 3.29)	0.004*
	Age (≥65 years)	0.87 (0.21)	2.39 (1.58 to 3.64)	<0.001*
	FiO2 (>21)	0.51 (0.18)	1.67 (1.17 to 2.38)	0.005*
	Sex (male)	0.43 (0.19)	1.53 (1.06 to 2.22)	0.023
	Respiratory rate (≥30 breaths/min)	0.86 (0.22)	2.36 (1.55 to 3.61)	<0.001
72-hour mortality	CFS score (≥5)	0.96 (0.34)	2.60 (1.34 to 5.06)	0.005
	Urea (>7mmol/L)	1.25 (0.43)	3.50 (1.50 to 8.18)	0.004
	Consolidation	1.83 (0.74)	6.21 (1.45 to 26.66)	0.014
	Age (≥65 years)	0.95 (0.45)	2.59 (1.06 to 6.30)	0.036
	SpO2 (≤94)	0.90 (0.31)	2.46 (1.34 to 4.51)	0.004
	FiO2 (>21)	1.13 (0.31)	3.08 (1.67 to 5.68)	<0.001

CFS, Clinical Frailty Scale; FiO₂, fraction of inspired oxygen; SpO₂, oxygen saturation by pulse oximetry.