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The randomized controlled PSAInForm study aims to investigate the effects of a computer-based decision aid which informs men in the age group 55-69 years about advantages and disadvantages of PSA testing. In preparation for the study, the current PSA testing practice in the Münster district was assessed.The frequencies of early detection examinations, medically indicated PSA tests, and prostate biopsies in the Münster district were determined, using aggregated data from the regional association of Statutory Health Insurance (SHI) Physicians in Westfalen-Lippe. With anonymized laboratory data, the frequency of PSA tests in general and urological practices, and their distribution among the accounting categories SHI, individual health services, and invoices for privately insured patients were investigated.In about half of more than 50,000 PSA tests, the accounting category could be determined; the rest could only be assigned to SHI or non-SHI services. The percentage of PSA tests that were performed due to reasons other than medically necessary SHI-reimbursed services was 50% in each age group; it was highest in men younger than 55 years, and declined markedly with advanced age. More than half of the PSA tests that were likely due to opportunistic screening were performed outside the age group 55-69 years.The percentage of PSA tests that were not carried out as SHI services was 80% in general practices, and 60% in urological practices. These percentages decreased markedly with advancing age. Most of the PSA tests were performed outside the age group which can be considered as the target group for an effective PSA screening according to the results of the European Randomized study of Screening for Prostate Cancer (ERSPC). |
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