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Table 1 Baseline patient characteristics in the Complications group and Non-Complications group (N = 175)

From: Risk factors associated with postoperative complications after liver cancer resection surgery in western China

Variables

Variable category (assignment)

Sample size (N %)

Complications group (N = 58)

Non-complications group (N = 116)

Kruskal–Wallis chi-squared

P-value

Demographic information

 Age

18–45:1

50 (28.57%)

14 (24.14%)

36 (30.77%)

0.83077

0.3621

45–65:2

125 (71.42%)

44 (75.86%)

81 (69.23%)

  

 Gender

Male (1)

144 (82.29%)

48 (82.76%)

96 (82.05%)

0.013234

0.9084

Female (2)

31 (19.61%)

10 (17.24%)

21 (17.95%)

  

 BMI (kg/m2)

 < 18.5 (1)

13 (7.43%)

4 (6.90%)

9 (7.69%)

10.053

0.03954

18.5–23 (2)

88 (50.29%)

38 (65.52%)

50 (42.74%)

  

23–25 (3)

39 (22.29%)

7 (12.07%)

32 (27.35%)

  

25–30 (4)

33 (18.86%)

7 (15.51%)

24 (20.51%)

  

 > 30 (5)

2 (1.14%)

0 (0%)

2 (1.71%)

  

Disease information

 ISHAK

Continuous variable (\(mean\)

\(\pm SD\))

4.94 \(\pm 1.34\)

4.86 \(\pm 1.22\)

4.97 \(\pm 1.09\)

1.9552

0.744

 Tumor diameter

Continuous variable (\(mean\pm SD\))

5.69 \(\pm 3.40\)

6.58 \(\pm 3.49\)

5.26 \(\pm 3.28\)

70.943

0.1577

 Tumor number

1 (1)

145 (82.86%)

46 (79.31%)

99 (84.61%)

5.187

0.3935

2 (2)

16 (9.14%)

4 (6.90%)

12 (10.23%)

  

3 (3)

7 (4.00%)

4 (6.90%)

3 (2.56%)

  

4 (4)

4 (2.29%)

2 (3.45%)

2 (1.70%)

  

5 (5)

2 (1.14%)

1 (1.72%)

1 (0.85%)

  

6 (6)

1 (0.57%)

1 (1.72%)

0 (0%)

  

 Invade the capsule or not

No (0)

84 (48.00%)

24 (41.37%)

60 (51.28%)

1.5148

0.2184

Yes (1)

91 (52.00%)

34 (58.62%)

57 (48.71%)

  

 With cancer thrombus

No (0)

133 (76.00%)

41 (70.69%)

92 (78.63%)

1.3336

0.2482

Yes (1)

42 (24.00%)

17 (29.31%)

25 (21.37%)

  

 Tissue differentiation

High differentiation (1)

4 (2.29%)

1 (1.72%)

3 (2.56%)

2.0111

0.3658

Middle differentiation (2)

152 (86.86)

48 (82.76%)

104 (88.89%)

  

Low differentiation (3)

19 (10.85%)

9 (15.51%)

10 (8.55%)

  

Surgical information

 Incision type

Kocher’s incision (1)

129 (73.71%)

51 (87.93%)

78 (66.67%)

8.9975

0.002704

 

Abdominal incision (2)

46 (26.28%)

7 (12.07%)

39 (33.33%)

  

 Incision length

Continuous variable (\(\mathrm{mean}\pm \mathrm{SD}\))

23.31 \(\pm 4.61\)

24.78 \(\pm 3.67\)

22.58 \(\pm 4.87\)

37.703

0.04944

 Duration

Continuous variable

(\(mean\)

\(\pm SD\))

201.04 \(\pm 58.\)

234.1\(\pm 59.47\)

184.64\(\pm 51.44\)

64.607

0.04017

 Incision range

One liver segment (1)

37 (21.14%)

5 (8.62%)

32 (27.35%)

16.294

0.0009869

Two liver segments (2)

55 (31.42%)

16 (27.59%)

39 (33.33%)

  

Three liver segments (3)

44 (25.14%)

15 (25.86%)

29 (24.78%)

  

Four liver segments (4)

39 (22.28%)

22 (37.93%)

17 (14.53%)

  

 Bleeding

Continuous variable (\(mean\pm SD\))

380\(\pm 307.82\)

516.72 \(\pm 382.87\)

312.22 \(\pm 236.90\)

34.274

0.02433

Outcome variables

 Complications

No (0)

117 (66.48%)

    

Yes (1)

58 (33.52%)