Table 5.

Logistic regression analysis for elderly severepneumonia

Risk factors	Estimate of parameter	Standard error	Wald	P	OR	95% CI
proBNP (pg/ml)	0.001	0.000	5.059	0.024	1.001	1.000-1.001
Prealbumin (mg/L)	0.032	0.020	2.580	0.108	0.968	0.931-1.007
Multiple resistant bacteria in sputum culture (MDRO)	-2.616	1.761	2.206	0.138	0.073	0.002-2.308
Low magnesium	4.870	2.450	3.951	0.047	130.304	1.071-15858.749
Conscious state	3.629	2.594	1.957	0.162	37.681	0.233-6088.79
Whether application of antimicrobial agents for the first time after admission appropriate	4.293	2.311	3.450	0.063	73.186	0.789-6789.461
Constant	-4.519	3.871	1.363	0.243	0.011	-