TABLE 2.

Characteristics and level of association with mortality, ICU admission, and mechanical ventilation in patients with a severe acute respiratory infection.

Outcome	Variable	Multivariate analysis
		OR (CI)	P value
Mortality	Age	2.4 (1.4–4.1)	<0.001*
	Heart disease	1.5 (0.9–2.6)	0.124
	Immune compromised	2 (0.9–4.3)	0.100
	Chronic lung disease	1.8 (0.9–3.7)	0.098
	Chronic kidney disease	2.4 (1.1–5.2)	0.020*
	Influenza B	1.1 (0.3–3.7)	0.908
	H1N1	1.9 (0.8–4.5)	0.136
	Influenza A	0.5 (0.1–1.6)	0.237
	Respiratory syncytial virus	1.5 (0.5–4.5)	0.492
ICU admission	Antiviral medication	2.5 (1.6–3.9)	<0.001*
	Influenza A	1.7 (0.9–3.2)	0.074
	Heart disease	1.5 (1–2.3)	0.035*
	Chronic hematological disorder	5.9 (3.1–11.1)	<0.001*
	Chronic lung disease	2.7 (1.6–4.6)	<0.001*
	Chronic kidney disease	2.2 (1.2–4.2)	0.016*
	Influenza B	1.3 (0.6–3.1)	0.483
	H1N1	1.3 (0.7–2.4)	0.492
	Respiratory syncytial virus	1.6 (0.8–3.4)	0.194
Mechanical ventilation	Age	1.2 (0.7–1.8)	0.510
	Antiviral medication	2.3 (1.3–3.9)	<0.001*
	Influenza A	1.2 (0.7–2.2)	0.520
	Respiratory syncytial virus	2.5 (1.1–5.5)	0.02*
	Chronic lung disease	3.1 (1.7–5.5)	<0.001*
	Chronic kidney disease	2.1 (1–4.4)	0.05*
	Heart disease	1.5 (0.9–2.5)	0.120

^*Significant association at the 0.05 level (2‐tailed).