Table 29.

Use of antibiotic therapy and relationship to mortality (Multivariate analysis adjusted according to clinical variables)

	Odds ratio (95% CI)	p value
Use of antibiotic therapy	1.20 (0.94–1.53)	0.14
Age	1.08 (1.07–1.09)	< 0.001
Smoking status
Never	–	1 (ref.)
Former	1.38 (1.19–1.59)	< 0.001
Current	1.63 (1.21–2.20)	0.001
Fever
No (< 37 °C)	–	1 (ref.)
Low-grade fever (37–37.9 °C)	0.98 (0.80–1.20)	0.84
Fever (> 38 °C)	0.86 (0.72–1.03)	0.10
Shortness of breath	1.30 (1.13–1.49)	< 0.001
Oxygen saturation < 90%	2.21 (1.92–2.55)	< 0.001
Tachypnea	1.93 (1.68–2.21)	< 0.001
C-reactive protein (mg/L)	1.01 (1.01–1.02)	< 0.001
Procalcitonin (ng/mL) > 0.15	4.78 (3.81–5.99)	< 0.001
Use of systemic corticosteroids	1.50 (1.30–1.71)	< 0.001
Use of tocilizumab	1.90 (1.50–2.40)	< 0.001