Effectiveness of mass screening for the prognosis of prostate cancer patients in Japanese communities
- PMID: 11870805
- DOI: 10.1002/pros.10057
Effectiveness of mass screening for the prognosis of prostate cancer patients in Japanese communities
Abstract
Background: A study was conducted to investigate the effectiveness of mass screening (MS) for prostate cancer in Japanese communities using the long-term follow-up results.
Methods: Subjects were 279 patients with prostate cancer detected by MS in Gunma prefecture (MS group) and 624 patients with prostate cancer who did not undergo screening (non-MS group). From the follow-up data, the prognoses were compared between the groups.
Results: The ratio of patients with Stage II cancer was higher for the MS group (59.1%) when compared to non-MS group (25.3%). As a whole, the prognosis of the MS group was more favorable than that of the non-MS group for relative survival rate. Prognosis was especially favorable for patients with Stage III prostate cancer in mass screening group considering the effect of lead-time bias.
Conclusions: Early detection and longer survival of the patients with prostate cancer detected by mass screening suggested the effectiveness of prostate cancer screening.
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