One task of the Mass Screening Registry is to evaluate cancer screenings. Population-based screenings must have reliable evidence to be effective. In addition, the harms of screening, its costs and its impact on the quality of life are studied.
The Mass Screening Registry evaluates the existing screening programmes, updates them and also monitors new cancer screening data. The Mass Screening Registry plans and implements new screening programmes when necessary.
The effect of screening on cancer morbidity and mortality can be investigated by combining and comparing screening data with those data obtained from the Finnish Cancer Registry. The use of registry information enables researchers to investigate reliably, for example, the effect of screening on the decline in breast cancer mortality.