Abstract:The exposure rate of screening for prostate cancer using prostate-specific antigen (PSA) in Japan is still very low compared with that in the USA or western Europe. The mortality rate of prostate cancer will increase in the future and in 2020 it will be 2.8-fold higher than in 2000. Therefore, there is an urgent need to determine the best available countermeasures to decrease the rate of prostate cancer death. PSA screening, which can reduce the risk of death as a result of prostate cancer, should be offered to all men at risk of developing prostate cancer with fact sheets showing updated benefits and drawbacks of screening for prostate cancer.Key words: prostate cancer, PSA, screening, guidelines.
Policy statement of the Japanese Urological Association on screening for prostate cancerThe Japanese Urological Association (JUA) recommends prostate-specific antigen (PSA) screening, which can reduce the risk of death as a result of prostate cancer, 1 for men at risk of prostate cancer. The recommendation is based on fact sheets showing the benefits and drawbacks of screening for prostate cancer. The JUA provides the best available screening system for men who want to be screened.
Theoretical background of the policy statement1 The exposure rate of screening for prostate cancer using PSA in Japan is still very low compared with that in the USA or western Europe. Therefore, many clinically significant cancer cases in Japan might be undetected and missed until they develop into clinically advanced disease.2 At present, approximately 30% of newly detected prostate cancer cases have bone metastases in municipalities where the exposure rates of populationbased PSA screening have been lower than 5%. 3 In the mean time, mortality rates as a result of prostate cancer have increased and were estimated to be 9985 in 2008. 4 The number of deaths as a result of prostate cancer will reach 21 062 in 2020.5 Therefore, there is an urgent need to determine the best available countermeasures to decrease the rate of prostate cancer death. 2 The Cancer Countermeasure Fundamental Law, which is an important national policy in Japan declared in 2007, stated the goal of a 20% decrease in the mortality rates as a result of cancer in people aged below 75 years within 10 years. The JUA recommends PSA screening, which can lead to a decrease in the mortality rate of prostate cancer, based on well-balanced fact sheets in human dry-dock (Ningen dock) and also populationbased screening for prostate cancer to contribute to achieving the goal in terms of reducing the mortality rate of prostate cancer in all age ranges. 3 The latest results from the European Randomized Study of Screening for Prostate Cancer (ERSPC) showed that the mortality rate of prostate cancer showed a 20% and 31% decrease in the screening group compared with the control group during 9 years of observation on average by intention-to-screen (ITS) analysis 1 and a second analysis adjusted by compliance and contamination for the PSA test, 6 respectively. This study clearly s...