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• Risk Stratification for Biochemical Recurrence After Prostatectomy
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Risk Stratification for Biochemical Recurrence After Prostatectomy 

Volume 179, Number 5, pages 1792–1794: Page 1792, paragraph 1, line 14 in Statistical Analysis is: We determined that grouping age 60 years or younger vs older than 60, Gleason score as 3+4 or less, 4+3, vs 8–10, preoperative PSA 10 ng/ml or less vs more than 10, prostate specimen weight 30 gm or less vs more than 30 and number of positive margins locations 2 or greater vs 1 or 0 provided the maximum likelihood chi-square ratio for estimating time to biochemical recurrence. In tables 2 and 3 the categorization of positive margins is 2 or greater vs 1 or 0. Page 1793, paragraph 3 in Results is: For example, the 1, 3 and 5-year risk of biochemical recurrence-free survival in a man 60 years old or younger with preoperative serum PSA 10 ng/ml or less, pathological Gleason score 3+4 or lower, 1 or 0 margin and a prostate specimen weight of greater than 30 gm was 93%, 87% and 79%, respectively. This compared to a 1, 3 and 5-year risk of PSA recurrence-free survival of 26%, 7% and 1%, respectively, in a man older than 60 years with preoperative serum PSA more than 10 ng/ml, pathological Gleason score 8–10, 2 or more positive margins and a prostate specimen weight of 30 gm or less.