|  | BDNF |  | |
---|---|---|---|---|
 |  | Higher expression (n = 41) | Lower expression (n = 24) | p-value |
Distribution | Solitary | 10 | 15 | *0.002 |
 | Multiple | 31 | 9 |  |
Differentiation | Well | 23 | 7 | *0.036 |
 | Moderate-poor | 18 | 17 |  |
Stage | I+II | 7 | 12 | *0.005 |
 | III | 34 | 12 |  |
Lymph node metastasis | + - | 19 22 | 4 20 | *0.016 |