Table 4.

Risk factors for 30-day mortality in the S. aureus community-acquired pneumonia group

	Univariate analysis				Multivariate analysis
Variables	Crude OR	95 % CI	P value		Adjusted OR	95 % CI	P value
Sex, male	1.11	(0.50–2.43)	0.804		0.89	(0.36–2.16)	0.788
Age ≥80 years	1.28	(0.59–2.76)	0.528		0.79	(0.33–1.92)	0.608
Non-ambulatory status	3.58	(1.58–8.10)	0.001		2.40	(0.93–6.17)	0.070
GCS ≤12	2.84	(1.30–6.23)	0.007		1.40	(0.56–3.47)	0.469
Albumin <3.0 g/dL	2.63	(1.18–5.85)	0.015		2.41	(1.01–5.83)	0.047
pH <7.35	2.58	(1.01–6.58)	0.046		2.19	(0.78–6.17)	0.140
PaO2/FiO2 ≤250	4.27	(1.66–10.97)	0.001		3.29	(1.20–9.04)	0.021
Methicillin resistance	1.82	(0.84–3.94)	0.126		1.17	(0.49–2.74)	0.727

OR: odds ratio

CI: confidence interval

GCS: Glasgow Coma Scale

PaO₂/FiO₂: ratio of arterial oxygen partial pressure to fractional inspired oxygen