Table 1 Patient's characteristics

Age, years

0,73

   <50

31

(18%)

17

(20%)

14

(17%)

   51-60

54

(32%)

25

(29%)

29

(34%)

   >60

84

(50%)

43

(51%)

41

(49%)

   Median

60

60

60

   Range

35 - 79

35 - 76

37 - 79

Sex

0,9

   Male

126

(75%)

63

(74%)

63

(75%)

   Female

43

(25%)

22

(26%)

21

(25%)

Weight loss (% of normal weight)

0,24

   <5

56

(33%)

30

(35%)

26

(31%)

   6-10

40

(24%)

16

(19%)

24

(29%)

   >10

51

(30%)

30

(35%)

21

(25%)

   Not recorded

22

(13%)

9

(11%)

13

(15%)

Tumor length (cm)

0,17

   <3

27

(16%)

14

(17%)

13

(16%)

   4-6

69

(41%)

36

(42%)

33

(39%)

   7-10

55

(32%)

22

(26%)

33

(39%)

   >10

6

(4%)

5

(6%)

1

(1%)

   Not recorded

12

(7%)

8

(9%)

4

(5%)

Location of the tumor

0,66

   Cervical

1

(1%)

1

(1%)

0

   Upper third

7

(4%)

3

(3%)

4

(5%)

   Middle third

76

(45%)

38

(45%)

38

(45%)

   Distal third

71

(42%)

34

(40%)

37

(44%)

   Not recorded

14

(8%)

9

(11%)

5

(6%)

Karnofsky score*

0,53

   70 - 80

125

(74%)

60

(71%)

65

(77%)

   90 - 100

38

(22%)

21

(24%)

17

(20%)

   Not recorded

6

(4%)

4

(5%)

2

(3%)