| |
n
|
5-year DSS (%)
|
p-value
|
5-year DFS (%)
|
p-value
|
|---|
|
Age
|
|
≤ 70
|
37
|
77.8
|
0.574
|
55.4
|
0.117
|
|
> 70
|
34
|
65.7
| |
44.3
| |
|
Sex
|
|
Male
|
57
|
70.9
|
0.925
|
49..7
|
0.917
|
|
Female
|
14
|
76.2
| |
51.9
| |
|
Performance status
|
|
0
|
57
|
78.8
|
<0.001
|
60.7
|
<0.001
|
|
≥ 1
|
14
|
53.8
| |
0
| |
|
Main tumor location
|
|
Upper thoracic
|
12
|
0
|
0.205
|
64.8
|
0.186
|
|
Middle thoracic
|
41
|
80.1
| |
57.2
| |
|
Lower thoracic
|
18
|
74.9
| |
25.5
| |
|
RT field
|
|
Non-ENI
|
32
|
62.3
|
0.094
|
42.0
|
0.389
|
|
ENI
|
39
|
81.7
| |
55.3
| |
|
Radiation dose
|
|
≤ 50 Gy
|
32
|
88.5
|
0.003
|
61.6
|
0.035
|
|
> 50 Gy
|
39
|
55.0
| |
38.0
| |
|
Tumor length
|
|
≤ 5 cm
|
55
|
70.5
|
0.540
|
50.9
|
0.818
|
|
> 5 cm
|
16
|
85.2
| |
50.6
| |
|
Circumferential spread of tumor
|
|
≤ 0.75
|
63
|
71.2
|
0.464
|
47.7
|
0.302
|
|
> 0.75, ≤1
|
8
|
83.3
| |
68.6
| |
|
Tumor number
|
|
1
|
65
|
62.8
|
0.170
|
51.2
|
0.149
|
|
≥ 2
|
6
|
100
| |
44.4
| |
|
Depth of tumor invasion
|
|
Muscularis mucosa
|
6
|
100
|
0.227
|
26.7
|
0.808
|
|
Submucosa
|
65
|
70.7
| |
51.3
| |
|
Endoscopic resection
|
|
No
|
26
|
53.6
|
0.005
|
33.8
|
0.014
|
|
Yes
|
45
|
82.9
| |
58.8
| |
|
Chemotherapy
|
|
No
|
24
|
54.5
|
0.005
|
44.1
|
0.036
|
|
Yes
|
47
|
80.8
| |
53.7
| |
-
DSS disease-specific survival, DFS disease-free survival, ENI elective nodal irradiation, RT radiotherapy
