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We examined the degree of exclusion bias that may occur due to missing data when grouping prostate cancer cases from the SEER (Surveillance, Epidemiology and End Results) database into D'Amico clinical risk groups. Exclusion bias may occur since D'Amico staging requires all 3 variables to be known and data may not be missing at random. From the SEER database we identified 132,606 men with incident...
We describe trends in the use of intensity modulated radiotherapy vs 3-dimensional conformal radiotherapy for prostate cancer and identified predictors of intensity modulated radiotherapy use. From the SEER (Surveillance, Epidemiology and End Results)-Medicare database we identified 52,290 men with incident nonmetastatic prostate cancer from 2000 to 2007 who were treated with radiotherapy. We tracked...
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