Survival rates for nasopharyngeal cancer in an endemic population

Stage (AJCC/UICC 7^th Edition)	Number of patients	Percentage of subjects in the entire study population	5-year OS (%)	8-year OS (%)
I	255	8	93.2	85.5
II	589	18	86.6	79.9
III	1589	48	80.5	70.7
IVA	535	16	65.1	53.4
IVB	360	11	63.2	51.2

AJCC: American Joint Committee on Cancer; UICC: Union for International Cancer Control; OS: overall survival.

Data from: Au, KH, Ngan RKC, Ng AWY, et al. Treatment outcomes of nasopharyngeal carcinoma in modern era after intensity modulated radiotherapy (IMRT) in Hong Kong: A report of 3328 patients (HKNPCSG 1301 study). Oral Oncol 2018; 77:16.

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