Table I.
Clinicopathological factors | Values |
---|---|
Total, n | 77 |
Observation period, days [range (mean)] | 144–2,762 (1,510) |
Age, years [range (mean)] | 22–86 (66) |
Gender, n (%) | |
Male | 49 (63.6) |
Female | 28 (36.4) |
Site, n (%) | |
Tongue | 38 (49.4) |
Gingiva | 27 (35.1) |
Oral floor | 9 (11.7) |
Buccal mucosa | 3 (3.9) |
Tumor sizea, mm [range (mean)] | 8–52 (27.1) |
≤20 mm, n (%) | 25 (32.5) |
21–30 mm, n (%) | 26 (33.8) |
31–40 mm, n (%) | 18 (23.4) |
>40 mm, n (%) | 8 (10.4) |
Tumor statusb, n (%) | |
T1 | 24 (31.2) |
T2 | 35 (45.5) |
T3 | 3 (3.9) |
T4 | 15 (19.5) |
Lymph node metastasisc, n (%) | |
N0 | 37 (48.1) |
N1 | 10 (13.0) |
N2 | 30 (39.0) |
N3 | 0 (0.0) |
Histological grade (YK4)d, n (%) | |
2–3 | 31 (40.3) |
4c-d | 46 (59.7) |
Margin statuse, n (%) | |
Negative | 72 (93.5) |
Positive | 5 (6.5) |
Primary site recurrence, n (%) | |
Negative | 71 (92.2) |
Positive | 6 (7.8) |
Distant metastasis, n (%) | |
Negative | 72 (93.5) |
Positive | 5 (6.5) |
Disease-specific deathf, n (%) | |
Alive | 63 (81.8) |
Succumbed | 14 (18.2) |
Major width of the tumor.
Tumor (T)
lymph node (N) category according to the Union for International Cancer Control Tumor-Node-Metastasis classification of malignant tumors of the lip and oral cavity.
Histopathological classification of oral squamous cell carcinoma (YK grade) according to Yamamoto et al (9).
Histological tumor positiveness of the surgical margin.
Fatality outcome from uncontrollable oral squamous cell carcinoma.