title: Validity of breast cancer registration from one hospital into the Swedish National Cancer Registry 1961-1970.
abstract: The validity of the Swedish Cancer Registry data on invasive female breast cancer in Malmö 1961-1970 was investigated. A total of 1311 entries in the register were examined, each entry representing an individual tumour, and compared to data from medical records and local registries. In 137 cases (10.5%) registered in the Swedish Cancer Registry, divergencies were found, of which at least 121 were overregistrations (9.2%). Forty-three tumours were identified meriting inclusion but not registered, giving an underregistration of 3.5%. The age distribution among the excluded cases differed somewhat from that of the verified cases.
authors.affiliation: Department of Surgery, Malmö General Hospital, Sweden.
authors.forename: J P
authors.initials: JP
authors.lastname: Garne
authors.forename: K
authors.initials: K
authors.lastname: Aspegren
authors.forename: T
authors.initials: T
authors.lastname: Möller
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000453:epidemiology*; D005260:Female; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D012042:Registries / Q000592:standards*; D013548:Sweden / Q000453:epidemiology