Table 3.

Independent predictors of mortality at multivariate analysis - the impact of total thoracic calcium on in-hospital death.

UNIVARIBLE	HR	95 CI	p-value	MULTIVARIABLE	HR	95 CI	p-value
Age	4.169	3.281–5.299	<0.001	Age	2.783	2.127–3.643	<0.001
Gender, male	1.381	1.009–1.891	0.044	Gender, male	1.804	1.174–2.771	0.007
White blood cells/mm3	1.371	1.167–1.61	<0.001	White blood cells/mm3	1.155	1.046–1.274	0.004
Creatinine (mg/dl)	1.814	1.63–2.018	<0.001	Creatinine (mg/dl)	1.411	1.294–1.539	<0.001
Well areaed lung volume cm3	0.451	0.359–0.567	<0.001	Well areaed lung volume cm3	0.395	0.347–0.449	<0.001
TTC mm3	1.397	1.304–1.496	0.001	TTC mm3	1.975	1.200–3.251	0.007
Arterial hypertension	2.199	1.623–2.98	0.001	–
Active malignancy	1.587	0.906–2.779	0.107	–
CPR	1.092	0.945–1.261	0.232	–
Pericardial effusion	1.14	0.664–1.958	0.635	–
Orotracheal intubation	1.199	0.837–1.718	0.322	–

HR Hazard ratio; CI confidence interval; TTC; Total thoracic calcium, AUC area under the ROC curve, CPR ​= ​c-protein reactive.

The TTC variable in the model is a categorical variable derived from the ROC curve of total thoracic calcium volume values for the outcome mortality.