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Is Age an Independent Factor for Prostate Cancer? A Paired Analysis.
José Arnaldo Shiomi da Cruz1,2, Carlo C Passerotti1,2, Sabrina Thalita Dos Reis1
1Laboratory of Medical Research, Department of Urology, University of Sao Paulo, Sao Paulo, Brazil.
Current Urology
|April 18, 2017
Summary
Age does not independently impact prostate cancer outcomes. This study found that when controlling for factors like Gleason score and PSA levels, patient age did not affect cancer recurrence or spread. Therefore, age is not a standalone prognostic factor in prostate cancer.
Area of Science:
- Urology
- Oncology
- Cancer Research
Background:
- Prostate cancer is a leading cause of cancer-related death in men globally.
- Established prognostic factors include Gleason score, prostate-specific antigen (PSA) levels, and biopsy results.
- The independent prognostic value of age in prostate cancer has remained under-investigated.
Purpose of the Study:
- To evaluate the impact of patient age on prostate cancer characteristics and progression.
- To compare prostate cancer outcomes across different age groups while controlling for known prognostic factors.
- To determine if age is an independent prognostic factor for prostate cancer.
Main Methods:
- Retrospective review of 2,283 patients undergoing radical prostatectomy (1998-2009).
- Patients were stratified into three age groups (<55, 56-65, >65 years).
- Paired analysis matched patients based on PSA, Gleason score, and biopsy results; 215 patients per group were compared for biochemical recurrence, relapse interval, and metastasis.
Main Results:
- No statistically significant differences were observed between age groups in terms of biochemical recurrence frequency or interval.
- Extra-capsular invasion, seminal vesicle invasion, and lymph node involvement showed no significant variation across age groups.
- Tumor characteristics and disease progression were similar across all studied age groups when controlling for established prognostic factors.
Conclusions:
- Age does not appear to be an independent prognostic factor for prostate cancer when other key factors are considered.
- Prostate cancer tumors exhibit similar characteristics and behaviors regardless of patient age, provided other prognostic indicators are matched.
- These findings suggest that treatment decisions should primarily rely on established prognostic factors rather than solely on patient age.