BACKGROUND: This investigation was conducted to develop an enhanced prognostic system based on readily available and independently predictive tumor-related factors for patients with clinically localized prostate carcinoma. METHODS: The outcome of 500 patients treated solely with irradiation for clinical TNM classifications T1-4, NO or NX, MO prostate carcinoma was used to identify factors independently associated with disease relapse. Logistic regression constructed a risk score equation, and optimized cutoff points to characterize patient groups with low, intermediate, or high risks for relapse were established with receiver operating characteristic curve analysis. RESULTS: Clinical tumor stage (P < 0.00001), Gleason score (P = 0.0002), and pretherapy serum prostate specific antigen (P < 0.00001) were independently associated with clinical or biochemical relapse. These factors were included in a risk score equation that defined patient groups with a distinctly different outcome. For the low, intermediate, and high risk groups, the relapse-free probabilities at 5 years after irradiation were 92%, 67%, and 24%, respectively (P < 0.00001). CONCLUSIONS: Readily available, pretherapy disease-related characteristics formed the basis of an enhanced prognostic system for patients with clinically localized prostate carcinoma. A multivariate prognostic system of this nature estimated patient prognosis in a more exacting fashion than a system exclusively based on anatomic factors.
BACKGROUND: This investigation was conducted to develop an enhanced prognostic system based on readily available and independently predictive tumor-related factors for patients with clinically localized prostate carcinoma. METHODS: The outcome of 500 patients treated solely with irradiation for clinical TNM classifications T1-4, NO or NX, MO prostate carcinoma was used to identify factors independently associated with disease relapse. Logistic regression constructed a risk score equation, and optimized cutoff points to characterize patient groups with low, intermediate, or high risks for relapse were established with receiver operating characteristic curve analysis. RESULTS: Clinical tumor stage (P < 0.00001), Gleason score (P = 0.0002), and pretherapy serum prostate specific antigen (P < 0.00001) were independently associated with clinical or biochemical relapse. These factors were included in a risk score equation that defined patient groups with a distinctly different outcome. For the low, intermediate, and high risk groups, the relapse-free probabilities at 5 years after irradiation were 92%, 67%, and 24%, respectively (P < 0.00001). CONCLUSIONS: Readily available, pretherapy disease-related characteristics formed the basis of an enhanced prognostic system for patients with clinically localized prostate carcinoma. A multivariate prognostic system of this nature estimated patient prognosis in a more exacting fashion than a system exclusively based on anatomic factors.
Authors: Shahrokh F Shariat; Michael W Kattan; Andrew J Vickers; Pierre I Karakiewicz; Peter T Scardino Journal: Future Oncol Date: 2009-12 Impact factor: 3.404
Authors: Robert T Dess; Krithika Suresh; Michael J Zelefsky; Stephen J Freedland; Brandon A Mahal; Matthew R Cooperberg; Brian J Davis; Eric M Horwitz; Martha K Terris; Christopher L Amling; William J Aronson; Christopher J Kane; William C Jackson; Jason W D Hearn; Curtiland Deville; Theodore L DeWeese; Stephen Greco; Todd R McNutt; Daniel Y Song; Yilun Sun; Rohit Mehra; Samuel D Kaffenberger; Todd M Morgan; Paul L Nguyen; Felix Y Feng; Vidit Sharma; Phuoc T Tran; Bradley J Stish; Thomas M Pisansky; Nicholas G Zaorsky; Fabio Ynoe Moraes; Alejandro Berlin; Antonio Finelli; Nicola Fossati; Giorgio Gandaglia; Alberto Briganti; Peter R Carroll; R Jeffrey Karnes; Michael W Kattan; Matthew J Schipper; Daniel E Spratt Journal: JAMA Oncol Date: 2020-12-01 Impact factor: 31.777