Table 1: Baseline characteristics of all procedures, NRS 0-3 group and NRS 4-10 group. Values are number (percentages) unless stated otherwise.

 

 

 

Total

 

       NRS 0-3

 

      NRS 4-10

 

(n=170)

 

       (n=98)

      (n=72)

 

 

 

 

 

Sex N (%)

Men

113

66.5

 

73

74.5

 

40

55.6

Age - mean (SD)

 

68

10

 

69

8

 

66

11

BMI - mean (SD)

 

26.9

4.1

 

26.8

3.9

 

27.0

4.3

Intoxications

Smoking

36

21.6

 

18

18.8

 

18

25.4

 

Alcohol

72

43.1

 

33

33.7

 

30

41.7

Drugs

4

2.4

 

1

1.0

 

3

4.2

ASA classification

ASA 2

63

37.1

 

36

36.7

 

27

37.5

 

ASA 3

102

60.0

 

60

61.2

 

42

58.3

ASA 4

5

2.9

 

2

2.0

 

3

4.2

History of chronic pain

 

27

15.9

 

12

12.2

 

15

20.8

Psychological

factors

17

10.0

 

3

3.1

 

14

19.4

Thermal ablation last year

53

31.2

 

29

29.5

 

24

33.3

Surgery last year

68

40.0

 

35

35.7

 

33

45.8

Prognosis

Curative

153

90.0

 

90

91.8

 

63

87.5

Received chemotherapy

 

54

31.8

 

32

32.7

 

22

30.9

 

 

 

 

 

 

 

 

 

 

Tumor type

Primary

91

53.5

 

52

53.1

 

39

54.2

 

Secondary

79

46.5

 

46

46.9

 

33

45.8

Liver cirrhosis

 

73

42.9

 

33

41.8

 

9

34.6

Number of lesions

1

115

67.6

 

68

69.4

 

47

65.3

 

2

40

23.5

 

21

21.4

 

19

26.4

>2

15

8.9

 

9

9.2

 

6

8.3

Tumor location

Subcapsular

84

49.4

 

45

45.9

 

39

54.2

 

Deep

85

50.0

 

52

53.1

 

33

45.8

Maximum tumor diameter - mean (SD)

Mm

19.8

7.0

 

19.2

6.7

 

20.5

7.5

Vascular involvement

No

97

57.4

 

59

60.2

 

38

53.5

 

<5mm

31

18.3

 

20

20.4

 

11

15.5

Against vessel

41

24.3

 

19

19.4

 

22

31.0

BMI: Body Mass Index; ASA-classification: American Society of Anaesthesiologists Physical Status Classification; physiological factors was defined as patients were known to have an episode of depression, anxiety or sleep disorders; SD: Standard Deviation.