From: Clinical value of station 4R node dissection in esophageal squamous cell carcinoma
Variable | n | 4R-positive n (%) | 4R-negative n (%) | p |
---|---|---|---|---|
Sex | 0.922 | |||
Male | 311 | 16 (5.1) | 295 (94.9) | |
Female | 82 | 4 (4.9) | 78 (95.1) | |
Age (years) | 0.736 | |||
≤ 65 | 323 | 17 (5.3) | 306 (94.7) | |
> 65 | 70 | 3 (4.3) | 67 (95.7) | |
Tumor location | 0.408 | |||
Upper | 58 | 3 (5.2) | 55 (94.8) | |
Middle | 278 | 16 (5.8) | 262 (94.2) | |
Lower | 57 | 1 (1.8) | 56 (98.2) | |
Histological grade | 0.057 | |||
G1 | 63 | 0 (0.0) | 63 (100) | |
G2 | 218 | 12 (5.5) | 206 (94.5) | |
G3 | 112 | 8 (7.1) | 104 (92.9) | |
pT stage | 0.317 | |||
T1a-T1b | 42 | 0 (0.0) | 42 (100) | |
T2 | 66 | 3 (4.5) | 63 (95.5) | |
T3 | 274 | 16 (5.8) | 258 (94.2) | |
T4 | 11 | 1 (9.1) | 10 (90.9) | |
pN stage | < 0.001 | |||
N0 | 188 | 0 (0.0) | 188 (100) | |
N1 | 106 | 4 (3.8) | 102 (96.2) | |
N2 | 66 | 6 (9.1) | 60 (90.9) | |
N3 | 33 | 10 (30.3) | 23 (69.7) | |
pTNM stage | < 0.001 | |||
0 | 1 | 0 (0.0) | 1 (100.0) | |
Ia | 1 | 0 (0.0) | 1 (100.0) | |
Ib | 36 | 0 (0.0) | 36 (100.0) | |
IIa | 53 | 0 (0.0) | 53 (100.0) | |
IIb | 103 | 0 (0.0) | 103 (100.0) | |
IIIa | 18 | 0 (0.0) | 18 (100.0) | |
IIIb | 146 | 10 (6.8) | 136 (93.2) | |
IVa | 35 | 10 (28.6) | 25 (71.4) | |
Tumor length (mm) | 0.653 | |||
≤ 35 | 195 | 11 (5.6) | 184 (94.4) | |
> 35 | 198 | 9 (4.5) | 189 (95.5) | |
2R metastasis | 85 | 11 (12.9) | 74 (87.1) | < 0.001 |
2L + 4L metastasis | 39 | 4 (10.3) | 35 (89.7) | 0.099 |
8U metastasis | 30 | 3 (10.0) | 27 (90.0) | 0.376 |