Table 3.

Prediction of Legionella CAP (n = 82) in univariate (a) and multivariate (b) logistic regression analysis

Univariate analysis
Predictor	Odds ratio	(95% CI*)		P-value
Age	0.98	0.97	1.00	0.017
Temperature	1.93	1.51	2.46	<0.0001
No dyspnea	1.75	1.06	2.9	0.03
No cough	3.7	2.05	6.6	<0.0001
No sputum	5.14	3.04	8.7	<0.0001
Sodium	0.86	0.82	0.91	<0.0001
Elevated liver enzymes1	3.32	2.02	5.48	<0.0001
Lactate dehydrogenase	1.003	1.002	1.005	0.001
Creatinine kinase	1.001	1.000	1.001	0.001
C-reactive protein (CRP)	1.006	1.004	1.008	<0.0001
Platelet counts	0.993	0.990	0.996	<0.0001
Hemoglobinuria	2.95	1.64	5.32	<0.0001
Proteinuria	2.88	1.56	5.29	0.001
Multivariate analysis
Predictor	Odds ratio	(95% CI)		P-value
Temperature	1.67	1.23	2.32	<0.0001
No sputum	3.67	1.8	7.4	<0.0001
Sodium	0.89	0.84	0.96	0.01
Lactate dehydrogenase	1.003	1.000	1.005	0.007
C-reactive protein (CRP)	1.006	1.003	1.009	<0.0001
Platelet counts	0.991	0.987	0.995	<0.0001

* Cl denotes confidence interval; ¹ elevated liver enzymes denotes ASAT and/or ALAT.