Table 1 Patient, tumor and surgical characteristics

Mean(range)Age (yrs)

70.6(33-88)

63.1(30-88)

61.2(37-89)

NS

Gender

   Male

36

35

35

NS

   Female

33

23

18

Comorbidities

NS

ASA status

NS

   1

11

9

13

   2

44

43

34

   3

13

6

6

   4

1

0

0

Type of Surgery

   APR

53

49

32

0.04

   ULAR

16

9

21

Intent of Surgery

NS

   Curative

62

54

49

   Palliative

7

4

4

Approach (Lap/Open)

16/53

12/46

10/43

NS

Median(range)Operating time(mins)

174.5(80-340)

185.3(75-420)

181.8(100-340)

NS

Median(range)Blood loss intraop (mls)

601(50-3000)

842(99-4200)

654(99-2000)

NS

Pathological tumor stage

   1

28

8

2

   2

19

28

13

   3

16

16

34

   4

4

1

4

Tumor differentiation

NS

   Poor

8

8

12

   Moderate

52

38

39

   Well

5

4

1

Neurovascular involvement

14

13

29

NS