Figure 1. Age-specific incidence of nasopharyngeal carcinoma (NPC) in males and females in urban and rural areas in 2009.

The age-specific incidence increased as age increased and peaked in the 60-64 age group in urban males, in the 55-59 age group in rural males, in the 65-69 age group in urban females, and in the 85 and over age group in rural females. Incidences in urban areas were higher than those in rural areas except among females over the age of 75, and incidences in males were higher than those in females in any age group.