Extract

Cumulative risk of stomach cancer (ICD-10: C16) incidence to age 69 years was calculated using the 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 stomach cancer incidence among 22 registries (and ethnic groups) are shown in Fig. 1. The data cover the years 1993–1997 in all the regions except Venetian-Italy (1993–1996). Males showed higher cumulative risk of stomach cancer incidence compared with females in all the 22 registries. Nagasagi, Japan, showed the highest cancer risk in males, whilst Seoul, Korea, showed the highest in females. The lowest cancer risk was found among the whites in USA in SEER (Surveillance Epidemiology and End Results) in both males and females. People living in East Asian regions tend to have higher cancer risk than those living in Western regions in both sexes. In particular, there was a tendency for immigrants from Asia, i.e. Japan, Korea and China, to show lower cancer risk than the native population. Among male immigrants, the highest risk was shown in Koreans in Los Angeles, USA. Florence, Italy, showed the highest risk among the Western male population. Similar patterns were shown in the female population, too.

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