Table 3.

Logistic Regression Analysis of Variables Associated with Mortality

	Univariate OR (95% CI)	P Value	Multivariate OR (95% CI)	P Value
S. parasanguinis, relative abundance	0.30 (0.13–0.66)	0.004	0.09 (0.02–0.38)	0.002
Sex (M vs. F)	1.70 (0.79–3.84)	0.185	1.93 (0.53–7.93)	0.333
Age	1.08 (1.04–1.12)	<0.001	1.12 (1.06–1.21)	0.001
Lopinavir–ritonavir (yes vs. no)	0.50 (0.23–1.05)	0.071	0.59 (0.16–2.02)	0.399
Severity-A (4 vs. 3)	0.56 (0.20–1.87)	0.312	0.56 (0.11–3.14)	0.485
Severity-A (5 vs. 3)	11.73 (3.26–49.99)	<0.001	19.56 (2.38–243.84)	0.010
Antibiotics*	0.79 (0.31–1.93)	0.608	0.98 (0.26–3.65)	0.980
Corticosteroid (yes vs. no)	5.78 (2.68–12.92)	<0.001	1.8 (0.3–10.05)	0.504
Comorbidity (with vs. without)	3.09 (01.37–7.68)	0.009	0.97 (0.21–4.31)	0.964

Definition of abbreviations: CI = confidence interval; OR = odds ratio; S. parasanguinis = Streptococcus parasanguinis; severity-A = severity on admission.

P values below 0.05 are in bold.

^*Duration of antibiotic use. High-grade antibiotics were not included in the analysis as only one patient took high-grade antibiotics before sampling.