Table 1.
Clinicopathological data of 270 patients with oral squamous cell carcinoma
| Clinicopathological factor | No. of patients (%) | |
|---|---|---|
| |
Total |
270 |
| Observation period (days) |
61-2182 (average, 1253.79) |
|
| Age (years) |
21 - 92 (average, 66.70) |
|
| Sex |
Male |
166 (61.48) |
| |
Female |
104 (38.52) |
| Tumor size (mm)1 |
5-60 (average, 26.63) |
|
| |
≤20 |
86 (31.85) |
| |
21-30 |
97 (35.93) |
| |
31-40 |
62 (22.96) |
| |
>40 |
25 (9.26) |
| Tumor status2 |
T1 |
83 (30.74) |
| |
T2 |
123 (45.56) |
| |
T3 |
5 (1.85) |
| |
T4 |
59 (21.85) |
| Lymph node metastasis3 |
pN0 |
149 (55.19) |
| |
pN1 |
41 (15.18) |
| |
pN2 |
80 (29.63) |
| |
pN3 |
0 (0) |
| Histologic grade (YK4)4 |
1-3 |
115 (42.59) |
| |
4c-d |
155 (57.41) |
| Surgical margin5 |
Negative |
244 (90.37) |
| |
Positive |
26 (9.63) |
| Primary site recurrence |
Negative |
240 (88.89) |
| |
Positive |
30 (11.11) |
| Distant metastasis |
Negative |
256 (94.81) |
| |
Positive |
14 (5.19) |
| Death outcome6 |
Alive |
233 (86.30) |
| Dead | 37 (13.70) |
1Major width of the tumor. 2Tumor (T) category according to the International Union Against Cancer (UICC) TNM classification of malignant tumors of the lip and oral cavity. 3Lymph node (pN) category determined by pathologic examination of a surgical specimen, according to the UICC TNM classification of malignant tumors of the lip and oral cavity. 4Histopathologic classification of oral squamous cell carcinoma (YK grade) according to Yamamoto et al., 1983 (10). 5Histological tumor status of the surgical margin. 6Death outcome from uncontrollable oral squamous cell carcinoma.