Table 1 Patient characteristics.

Cases

87

38

75

32

Demographic data

 Age, years, means ± SD

63.9 ± 7.4

65.1 ± 8.9

57.2 ± 9.1

57.1 ± 7.6

 Gender (male)

75 (86.2)

33 (86.8)

64 (85.3)

22 (68.8)

 Body height, cm, means ± SD

168.3 ± 6.7

168.1 ± 7.2

170.3 ± 8.4

171.4 ± 8.2

 Weight, means ± SD

67.7 ± 12.4

65.7 ± 9.1

63.5 ± 5.3

62.5 ± 6.4

 BMI, medians (IQR)

23.2 (21.1–26.2)

22.9 (21.7–24.3)

22.1 (20.7–22.8)

21.4 (20.5–22.0)

 Smoking history

63 (72.4)

24 (63.2)

18 (24.0)

5 (15.6)

 Current smoking

43 (49.4)

11 (28.9)

14 (18.7)

2 (6.3)

 Alcohol history

57 (65.5)

27 (71.1)

16 (21.3)

4 (12.5)

 Current alcohol drinking

39 (44.8)

15 (39.5)

12 (16.0)

3 (9.4)

Comorbidities

 Diabetes

7 (8.0)

4 (10.5)

7 (9.3)

2 (6.3)

 Cardiovascular disease

5 (5.7)

3 (7.9)

6 (8.0)

3 (9.4)

 Respiratory disease

2 (2.3)

0

2 (2.7)

0

Pathological data

 Cancer type

  SC/AC

84/3 (96.6/3.4)

35/3 (92.1/7.9)

 Pathological stage

  I/II/III/IV

18/27/29/13

6/12/16/4

(20.7/31.1/33.3/14.9)

(15.8/31.6/42.1/10.5)

 Vascular embolus or neural invasion

46 (52.9)

16 (42.1)

 Lymph node metastasis

43 (49.4)

21 (55.3)

 Differentiation degree

  G1

22 (25.3)

7 (18.4)

  G2

28 (32.2)

11 (28.9)

  G3

37 (42.5)

20 (52.6)