Table 2.

Univariate hazard ratios of variables for predicting 30-day hospital mortality.

	P	HR	95,0% CI for HR
			Lower	Upper
Demographic and clinical characteristics
Age	0.006	1.047	1.013	1.082
Sex	0.848	0.921	0.399	2.129
T3 at admission	0.011	3.225	1.312	7.927
Chronic renal failure (CRF)	0.172	4.054	0.545	30.172
Congestive heart failure	0.256	24.922	0.097	–
COPD	0.311	0.571	0.193	1.689
Ischemic heart disease	0.621	1.443	0.337	6.180
Arrhythmia	0.156	0.455	0.153	1.350
Non-metastatic neoplasia	0.725	1.244	0.368	4.206
Metastatic neoplasia	0.001	4.484	1.913	10.510
Chronic liver disease	0.344	0.555	0.164	1.880
HIV non-AIDS	0.520	21.577	0.002	–
Type 2 diabetes mellitus	0.302	0.632	0.265	1.509
Uncompensated DM2	0.997	1.002	0.296	3.392
Cerebral vascular disease	1.000	1.000	0.233	4.290
Dementia	0.763	1.363	0.182	10.194
Hypertension	0.055	2.504	0.979	6.406
Causes of hospital admission
Admission due to infection	0.170	0.498	0.183	1.350
Admission due to cardiovascular disease	0.675	0.650	0.087	4.865
Admission due to respiratory disease	0.521	0.046	0.000	558.851
Admission due to gastroenterologic disease	0.757	1.259	0.294	5.394
Admission due to neurologic disease	0.470	0.046	0.000	198.453
Admission due to acute kidney injury	0.702	1.329	0.310	5.692
Admission associated with neoplasia	0.001	4.468	1.804	11.064
Laboratory tests
Hemoglobin	0.008	0.808	0.691	0.945
Leukocytes	0.765	0.990	0.924	1.060
Lymphocytes	0.022	0.993	0.986	0.999
Platelets	0.116	0.997	0.994	1.001
C reactive protein	0.268	1.002	0.998	1.006
ESR	0.287	1.017	0.986	1.050
Creatinine	0.512	0.898	0.652	1.238
Urea	0.553	1.002	0.996	1.008
Albumin	0.000	0.258	0.136	0.488
Bicarbonate	0.051	0.913	0.833	1.000
AST	0.001	1.003	1.001	1.004
ALT	0.202	1.001	0.999	1.003
AKL	0.003	1.002	1.001	1.003
GGT	0.067	1.001	1.000	1.002
Total bilirubin	0.000	1.161	1.085	1.243
Lactate	0.745	1.047	0.794	1.380
Clinical scores
APACHE II	0.000	1.097	1.047	1.149
CHARLSON	0.002	1.194	1.070	1.334