• C J D Wallis, P Cheung, S Herschorn, R Saskin, J Su, L H Klotz, G S Kulkarni, Y Lee, R T Kodama, S A Narod, and R K Nam.
• Division of Urology, Toronto, ON, Canada M4N3M5.
• Br. J. Cancer. 2015 Mar 17;112(6):977-82.

BackgroundMen undergoing treatment of clinically localised prostate cancer may experience a number of treatment-related complications, which affect their quality of life.MethodsOn the basis of population-based retrospective cohort of men undergoing surgery, with or without subsequent radiotherapy, or radiotherapy alone for prostate cancer in Ontario, Canada, we measured the incidence of treatment-related complications using administrative and billing data.ResultsOf 36 984 patients, 15 870 (42.9%) underwent surgery alone, 4519 (12.2%) underwent surgery followed by radiotherapy, and 16 595 (44.9%) underwent radiotherapy alone. For all end points except urologic procedures, the 5-year cumulative incidence rates were lowest in the surgery only group and highest in the radiotherapy only group. Intermediary rates were seen in the surgery followed by radiotherapy group, except for urologic procedures where rates were the highest in this group. Although age and comorbidity were important predictors, radiotherapy as the primary treatment modality was associated with higher rates for all complications (adjusted hazard ratios 1.6-4.7, P=0.002 to <0.0001).ConclusionsIn patients treated for prostate cancer, radiation after surgery increases the rate of complications compared with surgery alone, though these rates remain lower than patients treated with radiation alone. This information may inform patient and physician decision making in the treatment of prostate cancer.

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