Table 2. Laboratory parameters: baseline summary and univariate analysis.

Laboratory parameters	No. of patients included in the analysis	Low vs. normal or high			High vs. normal or low
		Low, No. of patients in each group (%)	HR	P-value	High, No. of patients in each group (%)	HR	P-value
Albumin	997	324 (32.5)	1.811	<0.0001	8 (0.8)	0.485	0.1083
Sodium	1,008	149 (14.8)	2.645	<0.0001	14 (1.4)	0.614	0.1786
Hematocrit	1,010	760 (75.3)	1.487	<0.0001	2 (0.2)	5.563	0.0172
Hemoglobin	1,010	781 (77.3)	1.376	<0.0001	2 (0.2)	5.563	0.0172
Erythrocytes	1,007	754 (74.9)	1.365	0.0004	8 (0.8)	1.422	0.4353
Lymphocytes	1,007	262 (26.0)	1.263	0.0004	9 (0.9)	0.574	0.2183
Neutrophils	1,010	42 (4.2)	0.573	0.0056	166 (16.4)	2.121	<0.0001
Potassium	1,007	46 (4.6)	1.567	0.0072	32 (3.2)	1.287	0.2322
Creatinine	1,008	132 (13.1)	1.211	0.0733	103 (10.2)	1.146	0.2445
AST	1,009	15 (1.5)	0.541	0.0897	205 (20.3)	1.583	<0.0001
Calcium	986	137 (13.9)	1.192	0.1036	32 (3.3)	1.076	0.7376
Phosphate	964	53 (5.5)	0.776	0.1280	62 (6.4)	0.936	0.6803
ALP	994	6 (0.6)	0.410	0.1290	392 (39.4)	1.506	<0.0001
Activated PTT	970	91 (9.4)	1.208	0.1330	63 (6.5)	1.125	0.4445
Magnesium	979	125 (12.8)	1.110	0.3429	26 (2.7)	1.000	1.0000
LDH	982	44 (4.5)	0.853	0.3766	317 (32.3)	1.455	<0.0001
PT	749	42 (5.6)	0.868	0.4617	147 (19.6)	0.925	0.4883
Prothrombin INR	995	63 (6.3)	0.900	0.4856	93 (9.4)	1.432	0.0045
Leukocytes	1,010	72 (7.1)	0.907	0.4949	141 (14.0)	1.983	<0.0001
Platelets	1,010	124 (12.3)	1.074	0.5142	98 (9.7)	1.279	0.0445
Bilirubin	1,009	14 (1.4)	0.882	0.6961	47 (4.7)	1.183	0.3378
ALT	1,009	36 (3.6)	1.071	0.7174	95 (9.4)	1.266	0.0452

The factors that were included in the final model are shown in bold text.

HR = hazard ratio; AST = aspartate aminotransferase; ALP = alkaline phosphatase; PTT = partial thromboplastin time; LDH = lactate dehydrogenase; PT = prothrombin time; INR = international normalized ratio; ALT = alanine aminotransferase.