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Screening for prostate cancer: updated experience from the Tyrol study.
Wolfgang Horninger1, Andreas Berger, Alexandre Pelzer
1Department of Urology, University of Innsbruck, Innsbruck, Austria.
The Canadian Journal of Urology
|March 23, 2005
Summary
Free prostate-specific antigen (PSA) testing in Tyrol, Austria, led to a significant reduction in prostate cancer mortality compared to the rest of the country. This natural experiment suggests widespread PSA screening can lower cancer deaths.
Area of Science:
- Urology
- Public Health
- Oncology
Background:
- Prostate cancer screening remains a topic of debate.
- The introduction of prostate-specific antigen (PSA) testing offers a method for early detection.
Purpose of the Study:
- To evaluate the impact of free, widely accessible prostate-specific antigen (PSA) testing on prostate cancer mortality.
- To compare prostate cancer mortality rates in Tyrol, Austria, with the rest of Austria following the implementation of a screening program.
Main Methods:
- A natural experiment design comparing Tyrol with the rest of Austria.
- Free PSA testing offered to men aged 40-79 in Tyrol from 1993 onwards.
- Monitoring of prostate cancer mortality rates from 1993 to 2000.
Main Results:
- A significantly greater decrease in prostate cancer mortality was observed in Tyrol compared to the rest of Austria between 1993 and 2000 (P=0.006).
- Tyrol experienced notable decreases in age-specific prostate cancer death rates, reaching up to 44% in 2000.
- Observed a migration towards lower clinical and pathological stages of prostate cancer in patients undergoing radical prostatectomy.
Conclusions:
- Freely available PSA testing, coupled with high population acceptance, is associated with reduced prostate cancer mortality.
- The observed decline in mortality is likely attributed to aggressive downstaging and effective treatment of prostate cancer.
- Further long-term evaluation is needed to ascertain the full impact of early cancer detection and treatment.