title: Prevalence of renal cell carcinoma: a nation-wide survey in Japan, 2002.
abstract: OBJECTIVE
  To investigate the incidence of renal cell carcinoma, classified by sex, age group and region in Japan, following a 5-year interval after a previous survey performed in 1997.
  
  
  METHODS
  The survey was conducted between the beginning of January 2002 and the end of December 2002. A total of 1288 institutions in all 47 prefectures throughout Japan were requested to register cases.
  
  
  RESULTS
  There were 7405 persons with renal cell carcinoma, consisting of 5063 males and 2342 females. Crude incidence rates were 8.2 and 3.6 per 100 000 population for men and women, respectively. Incidence rates in the Hokkaido region were highest followed by the Shikoku region.
  
  
  CONCLUSIONS
  Despite incidence of renal cell carcinoma increasing to 7405 from the 6358 persons in 1997, statistical data reported by the Ministry of Health, Labor and Welfare indicate that rising age-adjusted death rate for this tumor reached a ceiling in the past decade. Early detection may have contributed to this current trend; however, further epidemiological research is required to fully elucidate this.
authors.affiliation: Department of Urology, Ichikawa General Hospital, Chiba, Japan. marumo@tdc.ac.jp
authors.forename: Ken
authors.initials: K
authors.lastname: Marumo
authors.forename: Hiroomi
authors.initials: H
authors.lastname: Kanayama
authors.forename: Noriomi
authors.initials: N
authors.lastname: Miyao
authors.forename: Hayakazu
authors.initials: H
authors.lastname: Nakazawa
authors.forename: Seiichiro
authors.initials: S
authors.lastname: Ozono
authors.forename: Shigeo
authors.initials: S
authors.lastname: Horie
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nagamori
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Igarashi
authors.forename: Michihiko
authors.initials: M
authors.lastname: Hasegawa
authors.forename: Go
authors.initials: G
authors.lastname: Kimura
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakao
authors.forename: Takahisa
authors.initials: T
authors.lastname: Nakamoto
authors.forename: Seiji
authors.initials: S
authors.lastname: Naito
mesh_terms: D002292:Carcinoma, Renal Cell / Q000453:epidemiology*; D003625:Data Collection; D005260:Female; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D007680:Kidney Neoplasms / Q000453:epidemiology*; D008297:Male; D015995:Prevalence; D012042:Registries