Fig. 1

Nasopharyngeal carcinoma (NPC) age-specific incidence in China in 2013. The age-specific incidence increases remarkably from age 25–29 years, peaks at age 60–64 for males and age 75–79 for females, and decreases obviously thereafter. The incidences in males are much higher than those in females, but no obvious difference exists in age-specific incidence in either males or females between urban and rural areas