Cancer Incidence and Incidence Rates in Japan in 2001 based on the Data from 10 Population-based Cancer Registries

Abstract

The Japan Cancer Surveillance Research Group estimated the cancer incidence in Japan in 2001 on the basis of the data collected from 10 population-based cancer registries: Miyagi, Yamagata, Kanagawa, Niigata, Fukui, Shiga, Osaka, Okayama, Saga and Nagasaki. The methods of estimation and their limitations have been described in our previous reports (1–3). The number of incidences, crude rates, age-standardized rates and completeness of registration in 2001 are shown in Table 1, while the age-specific number of incidences and the rates according to sex and primary site are shown in Tables 2 and 3. The total number of incidence in Japan for 2001 was estimated to be 569 000. The time trends of age-standardized incidence rates for the major sites in 1975–2001 are shown in Fig. 1 (standard population: the world population) and in Fig. 2 (standard population: the 1985 Japanese model population). The leading site according to the age-standardized incidence rates was stomach for males and breast for females, as shown in Figs 1 and 2. The estimated cancer incidence data in Japan by sex, site, 5 year age group and calendar year during the period 1975–2001 are available on a website (http://ganjoho.ncc.go.jp/professional/statistics/statistics.html).