Table 4.
Summary of the study population.
| Variable/Characteristic | Sub-Set of Variable | Proportion/Mean/Median |
|---|---|---|
| Sex | Male | (661/861) = 76.8% |
| Female | (200/861) = 23.2% | |
| Age (Continuous) | Mean = 63.30 (CI: 62.52, 64.08) Median = 63.00 |
|
| 50 | 50 | (121/861) = 14.1% |
| >50 | (740/861) = 86.9% | |
| Smoking Status | Current smoker | (479/861) = 55.6% |
| Ex-smoker | (110/861) = 12.8% | |
| Never smoked | (156/861) = 18.1% | |
| Unknown | (116/861) = 13.5% | |
| Sub-site | Oropharynx | (209/861) = 24.3% |
| Oral Cavity | (331/861) = 38.4% | |
| Larynx | (321/861) = 37.3% | |
| Grade | Well-differentiated | (88/861) = 10.2% |
| Moderately differentiated | (475/861) = 55.2% | |
| Poorly differentiated | (187/861) = 21.7% | |
| Un-differentiated | (2/861) = 0.2% | |
| Unknown | (109/861) = 12.7% | |
| TNM Stage | Stage I | (119/861) = 13.8% |
| Stage II | (126/861) = 14.6% | |
| Stage III | (133/861) = 15.4% | |
| Stage IV | (376/861) = 43.8% | |
| Unknown | (107/861) = 12.4% |