Table 4.

Risk factors for mortality in COVID‐19 patients aged >70 years by logistic regression multivariate analysis

	Multivariate analysis
Risk factors	OR (95% CI)	P‐value
Age >80 years †	1.99 (0.75–5.30)	0.167
Confusion	1.66 (0.60–4.66)	0.332
SpO2 ≤93% on room air	11.65 (3.26–41.66)	<0.001
Moderate or severe dependency	1.82 (0.52–6.36)	0.349
Age‐adjusted Charlson Comorbidity Index >4	0.89 (0.34–2.36)	0.815
D‐dimer ≥0.5 μg/mL	1.38 (0.57–3.34)	0.470

^† Patients aged 70–80 years were assigned an odds ratio of 1.

CI, confidence interval; OR, odds ratio; SpO₂, oxygen saturation.