Cumulative risk of colon cancer (ICD-10: C18) and rectal and anus cancer (ICD-10: C19-C21) incidence to age 69 was calculated using data from Cancer Incidence in Five Continents Vol. VIII (1). Cumulative risk is defined as the probability that an individual will develop the disease in question during a certain age span, in the absence of other competing causes of death. The comparisons of the cumulative risk of colon cancer incidence among 22 registries (and ethnic groups) are shown in Fig. 1. The data cover years 1993–1997 in all the regions except Venetian Italy (1993–1996). Males showed higher cumulative incidence risk of colon cancer than females in registries other than Shanghai (China). In males, Nagasaki (Japan) showed the highest cancer risk while Seoul (Korea) and Shanghai (China) showed the lowest. In females, Nagasaki (Japan) showed the highest cancer risk while Seoul (Korea) showed the lowest. By comparison between East Asian people, Japanese have higher cancer risk than Chinese and Korean immigrants in Los Angeles and Hawaii (USA). Cumulative risk of Japanese immigrants living in USA is not always higher than that of the native population in Japan. In Western regions, USA-Black in SEER (Surveillance Epidemiology and End Results) showed the highest cancer risk both in males and females. The comparisons of the cumulative risk of rectal and anus cancer incidence among 22 registries (and ethnic groups) are shown in Fig. 2. The data also cover years 1993–1997 in all of the regions except Venetian Italy (1993–1996). Males showed higher cumulative incidence risk than females in all registries. In males, Nagasaki (Japan) showed the highest cancer risk while Shanghai (China) Chinese in Hawaii (USA) showed the lowest. In females, Singapore Chinese showed the highest cancer risk while Chinese in Los Angeles (USA) showed the lowest. Among East Asian people, there were small differences between the native population and immigrants in Los Angeles and Hawaii (USA). Japanese showed higher cancer risk than Chinese and Korean immigrants in Los Angeles and Hawaii (USA). In Western regions, in males, Bas-Rhin (France) showed the highest cancer risk while Sweden showed the lowest. In females, Venezia (Italy) showed the lowest cancer risk.
Comparisons of cumulative incidence risk of colon cancer among 22 selected cancer registries.
Comparisons of cumulative incidence risk of rectal and anus cancer among 22 selected cancer registries.
Note: Data were downloaded from IARC CANCERMondial Statistical Information System (http://www-dep.iarc.fr/). Data of the number of death and population for Vol. VIII were extracted from CI5I-VIII_September_2005.ZIP and tabulated by the authors of this article. The data of Korea-Seoul, Italy-Venezia and The Netherlands were the ‘original’ version, and the data of the other registries were the ‘updated’ version. Responsibility for this presentation and interpretation lies with the authors of this article. SEER: Surveillance Epidemiology and End Results.
