INTRODUCTION: We sought to examine the costs related to treatment and treatment-related complications for patients treated with surgery or radiation for localized prostate cancer. METHODS: We performed a population-based, retrospective cohort study of men who underwent open radical prostatectomy or radiation from 2004-2009 in Ontario, Canada. Costs, including initial treatment and inpatient hospitalization, emergency room visit, outpatient consultation, physician billings, and medication costs, were determined for five years following treatment using a validated costing algorithm. Multivariable negative binomial regression was used to assess the association between treatment modality and costs. RESULTS: A total of 28 849 men underwent treatment for localized prostate cancer from 2004- 2009. In the five years following treatment, men who underwent radiation (n=12 675) had 21% higher total treatment and treatment-related costs than men who underwent surgery ($16 716/person vs. $13 213/person). Based on multivariable analysis, while men who underwent XRT had a lower relative cost in their first year after treatment (relative rate [RR] 0.97; 95% confidence interval [CI] 0.94-1.0; p=0.025), after year 2, annual costs were significantly higher in the radiation group compared to the surgery group (total cost for year 5, RR 1.44; 95% CI 1.17-1.76; p<0.0001). Our results were similar when restricted to young, healthy men and to older men. CONCLUSIONS: Men who undergo radiation have significantly higher five-year total treatment-related costs compared to men who undergo open radical prostatectomy. While surgery was associated with slightly higher initial costs, radiotherapy had higher costs in subsequent years.
INTRODUCTION: We sought to examine the costs related to treatment and treatment-related complications for patients treated with surgery or radiation for localized prostate cancer. METHODS: We performed a population-based, retrospective cohort study of men who underwent open radical prostatectomy or radiation from 2004-2009 in Ontario, Canada. Costs, including initial treatment and inpatient hospitalization, emergency room visit, outpatient consultation, physician billings, and medication costs, were determined for five years following treatment using a validated costing algorithm. Multivariable negative binomial regression was used to assess the association between treatment modality and costs. RESULTS: A total of 28 849 men underwent treatment for localized prostate cancer from 2004- 2009. In the five years following treatment, men who underwent radiation (n=12 675) had 21% higher total treatment and treatment-related costs than men who underwent surgery ($16 716/person vs. $13 213/person). Based on multivariable analysis, while men who underwent XRT had a lower relative cost in their first year after treatment (relative rate [RR] 0.97; 95% confidence interval [CI] 0.94-1.0; p=0.025), after year 2, annual costs were significantly higher in the radiation group compared to the surgery group (total cost for year 5, RR 1.44; 95% CI 1.17-1.76; p<0.0001). Our results were similar when restricted to young, healthy men and to older men. CONCLUSIONS:Men who undergo radiation have significantly higher five-year total treatment-related costs compared to men who undergo open radical prostatectomy. While surgery was associated with slightly higher initial costs, radiotherapy had higher costs in subsequent years.
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