An Analysis of Incidence and Mortality of Colorectal Cancer in China,2003～2007

Abstract

[Purpose] To describe the incidence and mortality of colorectal cancer and their time trends during 2003~2007 in China. [Methods] The data during 2003~2007 were collected from 32 cancer registries in China. Crude incidence, crude mortality, age-specific incidence, age-specific mortality, age-standardized incidence and age-standardized mortality were calculated respectively. The time trends of incidence and mortality of colorectal cancer during 2003~2007 were described, and the Joinpoint model was used to analyze the trends of the long term data in some registries. [Results] During 2003~2007 in China the crude incidence of colorectal cancer was 28.08/105, the age-standardized rates by Chinese population and by world population were 14.41/105 and 19.27/105, respectively. The crude mortality of colorectal cancer was 13.41/105, the age-standardized rates by Chinese population and by world population were 6.27/105 and 8.76/105, respectively. The colorectal cancer accounted for 10.56% and 7.80% of the total cancer incidence and mortality, ranked 3rd and 5th, respectively. The incidence and mortality were higher in male than that in female, and the sex ratio was 1.17∶1. The colon cancer and rectum cancer accounted for most of the colorectal cancer, and the anal cancer accounted for only 1%. The incidence and mortality of colorectal cancer increased steadily during 2003~2007 in China. The incidence in Beijing City, Shanghai City, Qidong County and Linzhou County increased steadily during 1988~2007, but the mortality changed unsteadily. [Conclusion] The incidence and mortality of colorectal cancer increase steadily during 2003~2007. Prevention and control of colorectal cancer is still need to be strengthened in China.