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  • Title: Health outcomes in older men with localized prostate cancer: results from the Prostate Cancer Outcomes Study.
    Author: Hoffman RM, Barry MJ, Stanford JL, Hamilton AS, Hunt WC, Collins MM.
    Journal: Am J Med; 2006 May; 119(5):418-25. PubMed ID: 16651054.
    Abstract:
    PURPOSE: We compared health-related quality-of-life (HRQOL) outcomes and survival of men with localized prostate cancer who received aggressive treatment with those receiving conservative management. METHODS: We conducted a population-based cohort study of men aged 75 to 84 years when diagnosed with a clinically localized cancer in 1994 or 1995. We used medical record abstractions and patient surveys to obtain clinical and HRQOL data at diagnosis and 24-month follow-up. We used a propensity score method to adjust for baseline differences between men treated with radical prostatectomy or radiation therapy (n = 175) and men who received hormone therapy or no treatment (n = 290). Propensity scores were used in regression analyses comparing HRQOL outcomes between treatment groups. Overall and disease-specific survivals were estimated with multivariate proportional hazards models. RESULTS: At 24 months following diagnosis, aggressively treated men were more likely to report daily urinary leakage (odds ratio [OR] = 2.9, 95% confidence interval [CI] 1.2-7.0) and to be bothered by urinary problems (OR = 5.1, 95% CI, 1.3-9.1) and sexual problems (OR = 2.8, 95% CI, 1.2-6.3). The adjusted disease-specific mortality hazard ratio was 0.43 (95% CI, 0.15, 1.28), favoring aggressive treatment. However, the absolute 5-year disease-specific survival difference was only 6% (98% vs 92%). Over 80% of all deaths were from other causes. CONCLUSIONS: Aggressive treatment was associated with significant decreases in disease-specific HRQOL. However, men who were aggressively treated for localized cancer had a minimally reduced absolute risk of dying from prostate cancer. Physicians and older patients should consider these outcomes in making decisions about screening and treatment.
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