Stomach cancer is one of the most common cancers worldwide, with male incidence rates being 1.5 to 2.5 times higher than those for females. The incidence of stomach cancer increases significantly with age. For example, using the male stomach cancer incidence rate, the incidence rate is 70 per 100,000 for the age group 45-54 years, 145.7 per 100,000 for the age group 55-64 years, and for the age group 65-74 years it is 2... (It seems like the last number might be cut off in the original text).