Table 2 The patient baseline characteristics

General background

 Sex

  Female

85

41(48.23%)

31(36.47%)

13(15.29%)

0.396

  Male

166

69(41.57%)

69(41.57%)

28(16.88%)

Comorbidity

  Yes

42

1(2.38%)

9(21.43%)

32(76.19%)

< 0.001

  No

209

109(52.15%)

91(43.54%)

9(4.31%)

Diagnosis

 Malignant diseases

193

83(43.01%)

79(40.93%)

31(16.06%)

0.733

 Benign diseases

58

27(46.55%)

21(36.21%)

10(17.24%)

Preoperative evaluation

 Blood test

  Albumin (g/L)

   < 35

62

9(14.52%)

20(32.26%)

33(53.23%)

< 0.001

   ≥ 35

189

101(53.44%)

80(42.33%)

8(4.23%)

  T-BIL^# (µmol/L)

   ≤ 21

188

108(57.45%)

66(35.11%)

14(7.45%)

< 0.001

   > 21

63

2(3.17%)

34(53.97%)

27(42.86%)

 Child-pugh

  A

214

108(50.47%)

95(44.39%)

11(5.14%)

< 0.001

  B/C

37

2(5.41%)

5(13.51%)

30(81.08%)

Tumor-related factors

 Largest tumor size (cm)

  ≤ 5

134

59(44.03%)

48(35.82%)

27(20.15%)

0.156

  > 5

117

41(35.04%)

37(31.62%)

39(33.33%)

 Number of lesions

  Single

218

94(43.12%)

90(41.28%)

34(15.60%)

0.308

  Multiple

33

16(48.48%)

10(30.30%)

7(21.21%)

Operative variables

 Resection scope

  Minor hepatectomy

175

81(46.29%)

68(38.86%)

26(14.86%)

0.428

  Major hepatectomy

76

29(38.16%)

32(42.11%)

15(19.74%)

 Resection style

  Nonanatomical

172

74(43.02%)

69(40.11%)

29(16.86%)

0.914

  Anatomical

79

36(45.57%)

31(39.24%)

12(15.19%)

 Operative duration (min)

  < 180

126

77(61.11%)

39(30.95%)

10(7.94%)

< 0.001

  ≥ 180

125

33(26.40%)

61(48.80%)

31(24.80%)

 Blood loss (mL)

  ≤ 800

229

108(47.16%)

89(38.86%)

32(13.97%)

< 0.001

  > 800

22

2(9.09%)

11(50.00%)

9(40.91%)

 Blood transfusion

  Yes

89

4(4.49%)

57(64.04%)

28(31.46%)

< 0.001

  No

162

106(65.43%)

43(26.54%)

13(8.02%)

Complication

 Yes

204

99(48.53%)

85(41.67%)

20(9.80%)

< 0.001

 No

47

11(23.40%)

15(31.91%)

21(44.68%)

Death

 Yes

5

0(0.00%)

3(60.00%)

2(40.00%)

0.106

 No

246

110(44.72%)

97(39.43%)

39(15.85%)

Preoperative stay (days)

 ≤ 7

199

87(43.72%)

76(38.19%)

36(18.09%)

0.293

 > 7

52

23(44.23%)

24(46.15%)

5(9.62%)

Postoperative stay (days)

 ≤ 14

174

87(50.00%)

67(38.51%)

20(11.49%)

0.001

 > 14

77

23(29.87%)

33(42.86%)

21(27.27%)