Abstract
Backgroud The aim of the study was to evaluate whether Beijing inhabitants with oral and oropharyngeal squamous cell carcinoma(OSCC) differ from previous reports with regard to clinicopathological characteristics and prognosis, and study the influence of prognostic factors. Methods Consecutive cases of primary oral and oropharyngeal squamous cell carcinoma in Beijing patients admitted between 2004 and 2013 were analyzed retrospectively. Clinical data included age, sex, location, site, TNM stage, history of drinking and smoking, differentiation and follow up information. Results A total of 603 cases were included in this study. The male: female ratio was 1.1:1. The frequency of sites decreased in the order tongue, gingiva, buccal mucosa, oral floor, oropharynx, lip and palate. Differences in location, age and stage between males and females were statistically significant (P < 0.05). Whereas 65.3% of male patients smoked or drank, only 6.3% of female patients did so. The overall 5-year survival rate was 64%. Female patients have a worse prognosis than male. For patients who received surgery, tumor size, lymph node involvement were independent prognostic factors. Smoking and drinking were not prognostic factors. Conclusion Our study indicates that the clinical characteristics OSCC patients in Beijing is similar to some developed countries, both regarding male/female ratio, diagnostic age, prognosis, which is different from previous reports in other districts of China. Lymph node involvement was the most important prognostic factor, followed by tumor size, pathological grade.
The Prognostic Impact of Lymph Node Involvement in Large Scale Operable Node-Positive Esophageal Squamous Cell Carcinoma Patients: A 10-Year Experience