Table 1 Patient demographics and Pathologic findings

Gender(Male/Female)

24/20

31/28

P=0.840

Age

62.70±8.77

61.98±8.36

P=0.672

Body Mass Index

22.04±3.32

22.46±3.05

P=0.497

Tumor location(Proximal/Mid/Distal)

6/24/14

11/27/21

P=0.644

Smoking history (No/Yes)

20/24

30/29

P=0.588

Operation duration (min)

349.09±44.40

348.81±44.53

P=0.975

Retrieved Lymph nodes

13.11±2.33

13.14±2.67

P=0.965

Blood loss

262.5±87.82

399.8±174.3

P<0.0001

Rates of open conversion

13/44

23/59

P = 0.325

Pathologic findings

Pathologic types (adenocarcinoma/Squamous cell carcinomas)

7/41

9/54

P=0.756

Tumor Node Metastasis

T1/T2/T3/T4

13/8/17/6

13/12/26/8

P=0.849

N0/N1/N2/N3

18/14/6/6

31/15/7/6

P=0.704