Table 4.
Univariate Analysis of 384 Patients with OSCC
| Variable | Survival rate (%) | P value (log-rank) | |
|---|---|---|---|
| 2-year | 5-year | ||
| Gender | |||
| Male | 43.3 | 22.9 | 0.053 |
| Female | 59.2 | 30.1 | |
| Age (years) | |||
| ≤ 55 | 69.7 | 53.7 | 0.001 |
| > 55 | 34.0 | 8.8 | |
| Tobacco Use | |||
| User | 47.7 | 15.8 | 0.091 |
| Non-User | 49.6 | 29.8 | |
| Alcohol Use | |||
| User | 46.6 | 26.3 | 0.460 |
| Non-User | 50.7 | 21.0 | |
| Tumour Location | |||
| Alveolus | 59.3 | 0.0 | 0.255 |
| Buccal mucosa | 47.0 | 19.6 | |
| Floor of mouth | 34.5 | 0.0 | |
| Gingiva | 39.7 | 15.9 | |
| Lip | 100.0 | 100.0 | |
| Palate | 52.3 | 43.6 | |
| Tongue | 53.3 | 21.2 | |
| Other | 53.9 | 53.9 | |
| Clinical Stage | |||
| I | 100.0 | 100.0 | < 0.001 |
| II | 69.1 | 61.5 | |
| III | 41.7 | 14.5 | |
| IV | 35.4 | 0.0 | |
| Histo-pathological grade | |||
| Well differentiated | 64.9 | 42.2 | < 0.001 |
| Moderately differentiated | 50.1 | 21.7 | |
| Poorly differentiated | 26.4 | 0.0 | |
| Treatment Group | |||
| Surgery | 73.8 | 61.5 | 0.103 |
| Radiotherapy | 47.5 | 27.6 | |
| Chemotherapy | 100.0 | 0.0 | |
| At least 2 | 55.3 | 12.3 | |
Other – Commissure, Buccal sulcus, Retromolar trigone, Sublingual salivary glands
At least 2 – Surgery and Radiotherapy or Surgery and Chemotherapy
P value is for 5-year survival