New study found screening can reduce deaths by 13% but that overdiagnosis and subsequent overtreatment remain concerns New study found screening can reduce deaths by 13% but that overdiagnosis and subsequent overtreatment remain concerns Prostate cancer screening can reduce deaths by 13%, a study suggests. Cancer screening experts are assessing whether the UK should introduce a screening programme for prostate cancer, with a decision expected before the end of the year. The new study, published