Table 1.
Feature | Cluster 1 (n = 139) | Cluster 2 (n = 111) | Cluster 3 (n = 188) | Cluster 4 (n = 37) | P value |
---|---|---|---|---|---|
Median age (years) (Range) | 60 (34–90) | 62 (26–85) | 61 (29–90) | 59 (38–79) | 0.64 |
Gender | |||||
Male | 85 | 77 | 125 | 24 | 0.58 |
Female | 54 | 34 | 63 | 13 | |
Laterality | |||||
Right | 69 | 54 | 109 | 21 | 0.31 |
Left | 70 | 57 | 79 | 16 | |
Histologic grade | |||||
G1 | 4 | 0 | 4 | 0 | <10e-5 |
G2 | 71 | 21 | 88 | 21 | |
G3 | 58 | 48 | 71 | 10 | |
G4 | 6 | 41 | 25 | 1 | |
Pathological TNM stage | |||||
I | 82 | 22 | 101 | 27 | <10e-5 |
II | 12 | 10 | 19 | 6 | |
III | 32 | 42 | 42 | 1 | |
IV | 13 | 37 | 26 | 3 | |
Primary tumor pathologic spread | |||||
T1 | 82 | 24 | 104 | 27 | <0.0001 |
T2 | 14 | 13 | 25 | 6 | |
T3 | 42 | 66 | 58 | 3 | |
T4 | 1 | 8 | 1 | 1 | |
Lymph node status | |||||
N0 | 67 | 58 | 80 | 21 | 0.001 |
N1 | 0 | 11 | 6 | 0 | |
Metastasis | |||||
M0 | 125 | 75 | 163 | 34 | <0.0001 |
M1 | 14 | 36 | 25 | 3 |