The survival of patients with nasopharyngeal carcinoma.

The survival rates following treatment of 1,555 consecutive, previously untreated patients with nasopharyngeal carcinoma were studied. A 92.5% follow-up rate in 11 years is reported. Overall survival rates were 82.7% at one year, 67.4% at two years, 47.8% at five years, and 39.8% at ten years. Computer analysis revealed various factors influencing the survivals and hence prognosis. The outcomes in this series revealed five categories; clinical staging of nasopharyngeal carcinoma in five stages is, therefore, suggested.