Variable matching between groups
| | | | |
Age, y; mean ± SD
|
73.5 ± 8.68
|
73.0 ± 8.95
|
0.802¶
|
0.0454
|
Gender; Male/Female
|
27/18
|
25/20
|
0.831‡
|
0.0464
|
Underlying disease; No/Yes
|
41/4
|
41/4
|
1‡
|
0
|
Antithrombotic drugs; No/Yes
|
44/1
|
44/1
|
1‡
|
0
|
Tumor size, mm mean ± SD
|
17.0 ± 9.46
|
16.8 ± 12.2
|
0.923¶
|
0.0183
|
Location of lesions; Upper or Middle/Lower
|
26/19
|
26/19
|
1‡
|
0
|
Position of lesions; Lesser curvature/others
|
19/26
|
18/27
|
1‡
|
0.0908
|
Macroscopic type; Flat or depressed/ protruding
|
27/18
|
29/16
|
0.828‡
|
0.0918
|
Presence of ulceration
|
4
|
4
|
1‡
|
0
|
Operator level; expert/trainee
|
22/23
|
22/23
|
1‡
|
0
|
Electrosurgical unit; VIO 300D/ICC 200
|
40/5
|
40/5
|
1‡
|
0
|