Breast cancer incidence and mortality in the Nordic capitals, 1970–1998. Trends related to mammography screening programmes

摘要: The aim of the present study was to relate time trends in breast cancer incidence and mortality introduction mammography screening Nordic capitals. Helsinki offered women aged 5059 starting 1986. other three capitals 5069 1989 Stockholm, 1991 Copenhagen, 1996 Oslo. Prevalence peaks depended on age groups covered by screening, length implementation extent background opportunistic screening. No reduction following visible after seven 12 years any where significant effects had already been demonstrated using analytical methods for evaluation. effect expected Oslo due too short an observation period. showed that population-based trend is crude a measure detect during first start programme. has studied several rando- mised trials majority which have per- formed Sweden (14). These studies shown it possible reduce 2030% at population level. In update four Swedish with follow-up 16 years, 21% (5), 20-year two-county trial greater than 40% found (6). National guidelines recommendations mam- mography as well European Guidelines from Commission (7), issued influenced establishment organisation treatment patients. Nationwide programmes now exist Finland, Iceland, Luxembourg, Netherlands, Sweden,