Table 2 Correlation between CIN status and Clinicopathological Parameters
Clinicopathological Parameters | CIN | p valuea | ||
|---|---|---|---|---|
Grade 1 | Grade 2 | Grade 3 | ||
Age (yrs) | ||||
   <60 | 21 | 6 | 5 | |
   ≧60 | 29 | 12 | 4 | NS |
Gender | ||||
   Male | 32 | 12 | 8 | |
   Female | 18 | 6 | 1 | NS |
Tumor site | ||||
   Tongue | 26 | 11 | 5 | |
   Lower gingiva | 15 | 4 | 3 | |
   Upper gingiva | 4 | 0 | 0 | |
   Buccal mucosa | 2 | 0 | 1 | |
   Floor of mouth | 3 | 3 | 0 | NS |
Disease stage | ||||
   I, II |    34 |    12 |    4 | |
   III, IV | 16 | 6 | 5 | NS |
Cellular differentiationb | ||||
   Well to Moderate | 47 | 15 | 6 | |
   Poor | 3 | 3 | 3 | p = .048 |
Clinical T stage | ||||
   1, 2 | 40 | 15 | 5 | |
   3, 4 | 10 | 3 | 4 | NS |
Clinical N stage | ||||
   0 | 41 | 12 | 5 | |
   1 to 3 | 9 | 6 | 4 | NS |
Recurrence | 10 | 6 | 5 | NS |
Cancer death | 7 | 6 | 5 | p = .013 |