USE OF SECOND TREATMENT FOLLOWING DEFINITIVE LOCAL THERAPY FOR PROSTATE CANCER: DATA FROM THE caPSURE DATABASE
1998
AbstractPurpose: We compare secondary cancer treatment use in patients who underwent definitive local treatment for prostate cancer.Materials and Methods: The rate of second cancer treatment was determined in patients who underwent radical prostatectomy (1,254), radiotherapy (499) or cryosurgery (141) using data from the CaPSURE database, a longitudinal disease registry of patients with prostate cancer. Second treatments started within 3 months after initial treatment were defined as adjuvant and those started more than 3 months were defined as nonadjuvant. Using a parametric regression model of survival analysis, second treatment rates were adjusted for differences in clinical and demographic characteristics, and duration of followup among groups.Results: Of the patients 4% received a second adjuvant treatment and 17% received a second nonadjuvant treatment within 3 years of initial therapy. Adjusted rates of nonadjuvant second treatment were lowest after radical prostatectomy, and 34 and 88% higher afte...
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