Table 4.
Correlation between the risk factors and the tumor differentiation grade
|
Risk factors |
G1 |
G2 |
G3 |
G4 |
|
Tobacco |
12 |
15 |
20 |
20 |
|
Alcohol |
2 |
5 |
14 |
12 |
|
Tobacco + alcohol |
2 |
10 |
6 |
4 |
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