Table 3 Disease characteristics of 4097 oral cancer patients in South China
Variate | Number of cases | Percentage (%) |
|---|---|---|
Tumor location | 4097 | Â |
 Body of tongue | 2230 | 54.4 |
 Floor of mouth | 305 | 7.4 |
 Buccal mucosa | 367 | 9.0 |
 Gingiva | 534 | 13.0 |
 Retromolar area | 18 | 0.4 |
 Hard palate | 381 | 9.3 |
 Lips | 187 | 4.6 |
 Unknown | 75 | 1.8 |
Pathologic type | 4097 | Â |
 Squamous cell carcinoma | 3642 | 88.9 |
 Adenoid cystic carcinoma | 119 | 2.9 |
 Mucoepidermoid carcinoma | 77 | 1.9 |
 Malignant melanoma | 48 | 1.2 |
 Adenocarcinoma | 32 | 0.8 |
 Basaloid carcinoma | 28 | 0.7 |
 Malignant mixed tumor | 25 | 0.6 |
 Sarcoma | 22 | 0.5 |
 Myoepithelial carcinoma | 4 | 0.1 |
 Others | 100 | 2.4 |
Blood type | 4097 | Â |
 A | 1021 | 24.9 |
 B | 1039 | 25.4 |
 AB | 253 | 6.2 |
 O | 1519 | 37.1 |
 Unknown | 265 | 6.5 |