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Clinical characteristics of the patients recruited to the present study.
| Clinical staging type | |||||
|---|---|---|---|---|---|
| Cancer type | Ratio of male to female | Most common degree of differentiation | III | IV | Total number of cases |
| Nasopharyngeal squamous cell carcinoma | 2.65:1 | Low | 75 | 60 | 135 |
| Hypopharyngeal squamous cell carcinoma | 42:1 | Medium and high | 12 | 31 | 43 |
| Total | 3.68:1 | Medium and low | 87 | 91 | 178 |
