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. 2017 Nov 9;36(1):90.
doi: 10.1186/s40880-017-0257-9.

Nasopharyngeal carcinoma incidence and mortality in China, 2013

Kuang-Rong Wei  1 , Rong-Shou Zheng  2 , Si-Wei Zhang  2 , Zhi-Heng Liang  1 , Zhu-Ming Li  1 , Wan-Qing Chen  3
Affiliations

Nasopharyngeal carcinoma incidence and mortality in China, 2013

Kuang-Rong Wei et al. Chin J Cancer. .

Abstract

Background: We estimated the incidence and mortality of nasopharyngeal carcinoma (NPC) in China in 2010 according to the data of 145 domestic population-based cancer registries in 2014, and no such reports since then. Hence, to further and better understand its epidemiology in China and to provide more precise scientific information for its control and prevention in China, we analyzed the NPC incidence and mortality of 255 domestic population-based cancer registries, and estimated the national rates in 2013 again.

Methods: NPC incidence and mortality data of 255 domestic cancer registries in 2013, accepted by the 2016 National Cancer Registry Annual Report, were collected and collated, and the indices of NPC such as the numbers of new cases and deaths, crude rates, age-standardized rates, and truncated rates of incidence and mortality were calculated and analyzed. The incidence and mortality in China and its constituent areas were estimated according to the national population in 2013.

Results: An estimated 42,100 new cases and 21,320 deaths were attributed to NPC in China in 2013, accounting for 1.14% of all new cancer cases and 0.96% of all cancer-related deaths that year in China. Crude incidence and mortality of NPC were 3.09/100,000 and 1.57/100,000, respectively. World age-standardized incidence and mortality were 2.17/100,000 and 1.08/100,000, respectively. The incidence and mortality of males were obviously higher than those of females and slightly higher in urban areas than in rural areas. Among seven Chinese administrative regions, NPC incidence and mortality were obviously higher in South China than in other regions and lowest in North China. Top 3 incidence and mortality provinces and registering areas all located in South China. The age-specific incidence and mortality rose quickly from age 25-29 and 35 to 39 years, respectively, peaked at different ages and varied by location.

Conclusions: These results demonstrated that NPC incidence and mortality in China in 2013 were also at high levels worldwide, which suggested that its control and prevention should be enhanced.

Keywords: China; Incidence; Mortality; Nasopharyngeal carcinoma.

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Figures

Fig. 1
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
Fig. 2
Fig. 2
NPC age-specific mortality in China in 2013. The age-specific mortality rises quickly from age 35–39 years, peaks at age 80–84 for males and 85+ years for females. The mortalities in males are much higher than those in females. The patterns of male and female age-specific mortalities in urban and rural areas are basically the same
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