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Materials and Methods

Depression Scores Pre and Post Treatment for 414 Men with Prostate Cancer Using Proton Collaborative Group Data Megan Dunn, PhD, MSHS†; Cortnie McClintic, RN†; Sandra Ramirez, RN†; William Hartsell, MD†; Carlos Vargas, MD*.

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Materials and Methods

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  1. Depression Scores Pre and Post Treatment for 414 Men with Prostate Cancer Using Proton Collaborative Group Data Megan Dunn, PhD, MSHS†; Cortnie McClintic, RN†; Sandra Ramirez, RN†; William Hartsell, MD†; Carlos Vargas, MD* †CDH Proton Center: 4455 Weaver Parkway, Warrenville IL USA *Proton Collaborative Group, USA PurposeNumerous studies have been done on the prevalence and effect of depression among patients undergoing radiation therapy. Some estimate prevalence as high as 50%1. Depression among prostate cancer patients has been claimed as a cause of poor treatment outcomes and is believed to worsen if untreated2. This review of self-reported symptoms aims to quantify this belief and either support, or discredit it. This can provide a guide for physicians as they evaluate and prioritize symptom management among this population. Materials and Methods Conclusion A prospective protocol (PCG REG001-09) was used to collect patient data related to self-reported levels of depression. Scores were collected pre-treatment and at the patient's 3 month follow-up using the EPIC Quality of Life instrument. Results indicate that there was no significant difference in the level of depression reported by patients before and after undergoing proton radiation therapy for prostate cancer. This large scale review shows that the prevalence of depression among prostate patients might not be as severe as thought, or that proton therapy might offer a sample of men unique to other forms of radiation therapy in regards to how frequently they present with depression. It also shows no significant difference in the level of depression reported by the patients pre-treatment and post-treatment, indicating that there was no significant detriment to not having a depression treatment or prevention intervention for these individuals. Results Pre and post treatment scores were evaluated for 414 men undergoing proton therapy. Pre-treatment depression scores averaged 9.67 (SD = 0.089) with a range of 2 to 11 (2 being most depressed, and 11 being the least depressed). Post-treatment depression scores averaged 9.88 (SD = 0.086) with a range of 2 to 11. A t-test was performed on the two data sets and results showed that the data was not significantly different (p = 0.07). Leopold KA, Ahles TA, Walch, S, et al. Prevalence of mood disorders and utility of the PRIME-MD in patients undergoing radiation therapy. Int J Radiat Oncol 1998;42:1105-1112. Sharpley CF, Bitsika V, Christie DRH. Understanding the causes of depression among prostate cancer patients; development of the effects of prostate cancer on lifestyle questionnaire. Psycho-Oncology 2009;18:162-168

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