|
Age (years)
|
|
≤ 60
|
938 (61.7)
|
163 (63.7)
|
|
> 60
|
583 (38.3)
|
93 (36.3)
|
|
Gender
|
|
Male
|
1174 (77.2)
|
227 (88.7)
|
|
Female
|
347 (22.8)
|
29 (11.3)
|
|
Smoking history
|
|
Yes
|
998 (65.6)
|
186 (72.7)
|
|
No
|
523 (34.4)
|
70 (27.3)
|
|
Drinking history
|
|
Yes
|
531 (34.9)
|
113 (44.1)
|
|
No
|
990 (65.1)
|
143 (55.9)
|
|
Differentiation
|
|
Well
|
388 (25.5)
|
54 (21.1)
|
|
Moderate
|
711 (46.7)
|
106 (41.4)
|
|
Poor/un-
|
422 (27.7)
|
96 (37.5)
|
|
Vascular invasion
|
|
Yes
|
33 (2.2)
|
14 (5.5)
|
|
No
|
1488 (97.8)
|
242 (94.5)
|
|
Tumor location
|
|
Upper thoracic esophagus
|
255 (16.8)
|
11 (4.3)
|
|
Middle thoracic esophagus
|
775 (50.9)
|
117 (45.7)
|
|
Lower thoracic esophagus
|
491 (32.3)
|
128 (50.0)
|
|
Tumor length
|
|
< 3
|
396 (26.0)
|
44 (17.2)
|
|
3–5
|
890 (58.5)
|
161 (62.9)
|
|
> 5
|
235 (15.5)
|
51 (19.9)
|
|
T stage
|
|
Tis
|
30 (2.0)
|
0
|
|
T1
|
147 (9.7)
|
16 (6.3)
|
|
T2
|
349 (22.9)
|
36 (14.1)
|
|
T3
|
961 (63.2)
|
189 (73.8)
|
|
T4
|
34 (2.2)
|
15 (5.9)
|
|
N staging
|
|
N0
|
923 (60.7)
|
0
|
|
N1
|
340 (22.4)
|
108 (42.2)
|
|
N2
|
199 (13.1)
|
106 (41.4)
|
|
N3
|
59 (3.9)
|
42 (16.4)
|
|
AJCC 8th stage
|
|
Stage 0
|
30 (2.0)
|
0
|
|
Stage I
|
193 (12.7)
|
0
|
|
Stage II
|
715 (47.0)
|
14 (5.5)
|
|
Stage III
|
507 (33.3)
|
192 (75.0)
|
|
Stage IV
|
76 (5.0)
|
50 (19.5)
|
|
Neoadjuvant therapy
|
|
Yes
|
73 (4.8)
|
12 (4.7)
|
|
No
|
1448 (95.2)
|
244 (95.3)
|
|
Postoperative adjuvant therapy
|
|
Yes
|
243 (16.0)
|
82 (32.0)
|
|
No
|
1278 (84.0)
|
174 (68.0)
|
|
Subcarinal LN metastasis
|
|
Yes
|
112 (7.4)
|
49 (19.1)
|
|
No
|
1409 (92.6)
|
207 (80.9)
|
|
Recurrent laryngeal nerve LN metastasis
|
|
Yes
|
117 (7.7)
|
24 (9.4)
|
|
No
|
1404 (92.3)
|
232 (90.6)
|
|
Left gastric artery LN metastasis
|
|
Yes
|
256 (16.8)
| |
|
No
|
1265 (83.2)
| |
|
Number of resected TLNs
|
|
Mean ± SD
|
20.98 ± 13.54
|
22.19 ± 11.62
|
|
Median (minimum, maximum)
|
18.00 (1, 109)
|
19.00 (5, 87)
|
