TABLE 2.
Treatment history of head and neck cancer and cancer in other organ
| Total number of previous cancers a | Surgery‐based therapy | Endoscopy‐based therapy | Chemoradiation –based therapy | Chemotherapy or hormonal therapy | Observation | TACE/RFA | Unknown | |
|---|---|---|---|---|---|---|---|---|
| Head and neck cancer | 141 | 75 | 0 | 60 | 5 | 1 | 0 | 0 |
| Esophageal cancer | 416 | 120 | 213 | 80 | 0 | 2 | 0 | 1 |
| Gastric cancer | 74 | 37 | 34 | 1 | 2 | 0 | 0 | 0 |
| Colorectal cancer | 12 | 9 | 2 | 0 | 1 | 0 | 0 | 0 |
| Prostate cancer | 9 | 4 | 0 | 1 | 4 | 0 | 0 | 0 |
| Lung cancer | 5 | 3 | 1 | 1 | 0 | 0 | 0 | 0 |
| Liver cancer | 3 | 1 | 0 | 0 | 0 | 0 | 2 | 0 |
| Bladder cancer | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
| Breast cancer | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Skin cancer | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Malignant lymphoma | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
| Bile‐duct cancer | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Duodenal cancer | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Anal canal cancer | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Thyroid cancer | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 672 | 257 | 251 | 146 | 12 | 3 | 2 | 1 |
Abbreviations: RFA, radiofrequency ablation; TACE, transcatheter arterial chemoembolization.
a
Including overlapping patients.