Table 6.

Patients’ characteristics at 9 days before the surgery in derivation and temporal validation sets. The characteristics comprise basic information, blood test, preoperative status and other details. Moreover, statistical tests are applied to the data. *Mann-Whitney U Test were performed for continuous data, and Pearson Chi-Squared Tests for categorical data between groups comparison.

Predictor candidates		Derivation set (year = 2004–2012) ($\mathit{n}\mathbf{=}\mathbf{480}$)				Temporal validation set (year = 2013) ($\mathit{n}\mathbf{=}\mathbf{58}$)
		$\mathit{n}$	Survival $\mathbf{\left(}\mathit{n}\mathbf{=}\mathbf{437}\mathbf{\right)}$	Death $\mathbf{\left(}\mathit{n}\mathbf{=}\mathbf{43}\mathbf{\right)}$	p-value*	$\mathit{n}$	Survival $\mathbf{\left(}\mathit{n}\mathbf{=}\mathbf{54}\mathbf{\right)}$	Death $\mathbf{\left(}\mathit{n}\mathbf{=}\mathbf{4}\mathbf{\right)}$	p-value*
Demographic data, mean(sd)
1	Gender, n(%)				1.0				1.0
	Male	358	326 (74.60)	32 (74.42)		43	40 (74.07)	3 (0.75)
	Female	122	111 (25.40)	11 (25.58)		15	14 (25.93)	1 (0.25)
2	Age	480	52.69 (9.18)	47.93 (15.29)	0.0982	58	52.63 (10.48)	55.25 (7.72)	0.6896
3	BMI	470	24.52 (3.90)	87.00 (39.65)	0.3626	57	26.25 (4.26)	24.05 (2.30)	0.2918
4	Survival days	480	1411.25 (1014.81)	12.14 (7.04)	<2.2E-16	58	172.70 (76.51)	11.75 (11.95)	0.00097
Blood test of day 9, mean (sd)
5	INR	470	1.73 (0.85)	2.51 (2.74)	4.724E-06	56	1.58 (2.04)	0.56 (0.56)	0.07164
6	Lymphocyte	467	22.33 (12.31)	18.55 (13.33)	0.02734	57	22.14 (11.40)	18.23 (8.87)	0.5219
7	Mg	415	1.68 (0.24)	1.65 (0.33)	0.1257	50	1.69 (0.26)	1.55 (0.23)	0.3133
8	Na	268	137.06 (5.82)	138.17 (10.12)	0.9906	8	123.28 (5.91)	122.14 (2.32)	0.9908
9	Platelets	476	79.21 (49.16)	63.39 (35.46)	0.0814	57	81.64 (68.08)	85.08 (18.66)	0.2811
10	WBC	476	4.86 (3.26)	5.99 (3.79)	0.03277	57	4.83 (5.16)	6.67 (3.56)	0.1378
Preoperative status, mean(sd)
11	MELD score	480	17.84 (8.90)	24.21 (9.36)	1.617E-05	58	16.69 (10.04)	29.75 (11.90)	0.021
12	Hepatitis, n(%)				0.1996				0.2852
	Nil	83	71 (16.25)	12 (27.91)		19	16 (29.63)	3 (0.75)
	Hepatitis B Virus (HBV)	277	253 (57.89)	24 (55.81)		22	21 (38.89)	1 (0.25)
	Hepatitis C Virus (HCV)	96	90 (20.59)	6 (13.95)		16	16 (29.63)	0 (0)
	Dual	24	23 (5.27)	1 (2.33)		11	1 (1.85)	0 (0)
13	HCC, n(%)				0.004467				0.2002
	No	264	231 (52.86)	33 (76.74)		33	29 (53.70)	4 (1.0)
	Yes	216	206 (47.14)	10 (23.26)		25	25 (46.30)	0 (0)
14	DX1, n(%)				0.1942				—
	Virtual hepatitis	396	363 (83.26)	33 (76.74)			43 (79.63)	2 (0.50)
	Alcoholic cirrhosis	35	32 (7.34)	3 (6.98)			6 (11.11)	1 (0.25)
	Wilson’s disease	6	4 (0.92)	2 (4.65)			1 (1.85)	0 (0)
	Primary Biliary cirrhosis	7	7 (1.61)	0 (0)			0 (0)	0 (0)
	Biliary atesia	2	1 (0.23)	1 (2.33)			0 (0)	0 (0)
	Fulminiant hepatitis	4	3 (0.69)	1 (2.33)			0 (0)	0 (0)
	Secondary Biliary cirrhosis	1	1 (0.23)	0 (0)			0 (0)	0 (0)
	Other malignancy	2	2 (0.46)	0 (0)			0 (0)	0 (0)
	Others	26	23 (5.26)	3 (6.98)			4 (7.41)	1 (0.25)
Other details, mean(sd)
15	Graft-recipient weight ratio (GRWR, %)	387	1.01 (0.24)	1.03 (0.48)	0.4077	53	0.94 (0.2)	1.02 (0.23)	0.5004
16	Liver weight	413	633.15 (146.82)	520.61 (134.30)	$4.163E-05$	50	644.68 (129.73)	620 (256.60)	0.8381
17	Types of liver transplant, n(%)				0.03325				0.7745
	Living donor	414	382 (87.41)	32 (74.42)		54	51 (94.44)	3 (0.75)
	Deceased donor	66	55 (12.59)	11 (25.58)		4	3 (5.56)	1 (0.25)