Incidence and mortality of oral and oropharyngeal cancer in China, 2015

Objective: To report the incidence and mortality rates of oral and oropharyngeal cancer in Chinese population. Methods: Data were taken from a population-based cancer registry collected by the National Central Cancer Registry of China (NCCRC) in 2015. The data collected from 501 local cancer registries in China were assessed using NCCRC screening methods and criteria. Incidence and mortality rates of oral and oropharyngeal cancer were stratified by age group, gender, and area. Age-standardized incidence and mortality rates were adjusted using the Chinese standard population in 2000 and Segi's world population. Results: In 2015, it was estimated that there were 51,765 oral and oropharyngeal cancer incident cases and 23,830 deaths in China. The crude incidence rate of oral and oropharyngeal cancer was 3.77/100,000, and the age-standardized incidence rate by Chinese standard population and by Segi's world standard population were 2.55/100,000 and 2.49/100,000, respectively. The crude mortality rate and the age-standardized mortality rates by Chinese standard population and by Segi's world standard population were 1.73/ 100,000, 1.09/100,000 and 1.08/100,000, respectively. Both incidence and mortality rates of oral and oropharyngeal cancer were higher in males and in urban areas. Residents in eastern areas had the highest incidence and mortality rates, followed by those from middle areas and western areas. The rates of oral and oropharyngeal cancer increased greatly with age, especially after the age of 40 years. Conclusions: This study reports the latest incidence and mortality rates of oral and oropharyngeal cancer in China. Prevention intervention including early detection, treatment, and regular follow-ups is encouraged to be set up to reduce incidence and mortality rates of oral and oropharyngeal cancer in the future.