[Show abstract][Hide abstract] ABSTRACT: The objective of this study was to preoperatively predict non-organ-confined disease in patients considering radical prostatectomy. To account for the stage migration seen in prostate cancer, we included only those patients who underwent prostatectomy after the year 2000. Information on a cohort of 1895 patients who underwent radical prostatectomy from 2000 to 2008 was retrieved from the Duke Prostate Center database. Race (African American, non-African American), body mass index, age at surgery, PSA, biopsy Gleason sum (<7, 7 and >7) and clinical tumor stage (cT1, cT2/3) were analyzed by univariate analysis followed by logistic regression analysis. The Duke Interactive Clinical Equation for staging (DICE-S score) was calculated from the logistic regression model. The model was then internally validated using a bootstrapping technique. Biopsy Gleason sums 7 and >7 were more likely to have non-organ-confined disease compared with <7 (OR=2.97, Gleason sum=7; OR=3.25, Gleason sum>7). Clinical tumor stage, cT2/3, predicted non-organ-confined disease (OR=1.58). Older age was associated with non-organ-confined disease (OR=1.02), as was greater PSA (OR=1.12). DICE-S equation x=ln (p/1-p)=-3.627+0.019 (age)+0.109 (PSA)+1.087 (bGleason=7)+1.180 (bGleason >7)+0.459 (clinical T stage >T1), where p=(e(x))/(1+e(x)). A concordance index (prediction accuracy) of 0.73 was reached on internal validation. Using the DICE-S score, age, PSA, biopsy Gleason sum and clinical tumor stage, we can predict non-organ-confined disease in radical prostatectomy at an acceptable accuracy. Preoperative information on disease stage may aid in treatment decisions and surgical approach.
Prostate cancer and prostatic diseases 09/2010; 13(3):248-51. · 2.10 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: To evaluate the US Preventative Services Task Force (USPSTF) recommendation to discontinue prostate-specific antigen (PSA) screening at age 75.
Public survey: A cohort of 340 patients was surveyed at our PSA screening clinic and stratified by awareness of the recommendation and education level. Age (< 75, >or= 75), race, health insurance status, knowledge of prostate cancer, and opinion on screening discontinuation at age 75 was evaluated between groups. Disease risk and survival analysis: A cohort of 4196 men who underwent radical prostatectomy between 1988 and 2008 was stratified into age groups: < 65, 65-74, and >or= 75. Associations between clinicopathologic variables, disease risk, and survival were compared between age groups using univariate and multivariate analysis.
Approximately 78% of men surveyed disagreed with the USPSTF recommendation. The number of men who disagreed was not significantly different between awareness groups (P = .962). Awareness of new screening guidelines showed a significant difference (P = .006) between education groups. Age >or= 75 years was predictive of high-risk disease based on D'Amico's criteria (odds ratio = 2.72, P = .003). Kaplan-Meier and Cox regression analyses showed an association of men aged >or= 75 years with higher rate of PSA recurrence, distant metastasis, and disease specific death compared with the age groups of < 65 and 65-74 (P <.05).
Men presenting to our PSA screening clinic disagreed with discontinuation of screening at age 75. Men aged >or= 75 years had higher risk disease and poorer survival. The USPSTF recommendation was supported neither by public opinion nor disease risk and survival results.
[Show abstract][Hide abstract] ABSTRACT: We clarified whether men older than 70 years have a higher risk of prostate cancer and poorer survival in the early and late prostate specific antigen eras.
A cohort of 4,561 men who underwent radical prostatectomy were stratified into 3 age groups (younger than 60, 60 to 70 and older than 70 years), and early and late prostate specific antigen eras based on the year of surgery (before 2000 and 2000 or later). Race, body mass index, prostate specific antigen, prostate weight, tumor volume, pathological Gleason sum, pathological tumor stage, extracapsular extension, seminal vesicle invasion and surgical margin status were submitted for univariate and multivariable analyses against the previously mentioned groups. Survivals (prostate specific antigen recurrence, distant metastasis and disease specific death) were compared among the 3 age groups using univariate and multivariable methods.
Compared with younger age groups (younger than 60, 60 to 70 years) men older than 70 years had a higher proportion of pathological tumor stage 3/4 (33.0 vs 44.3 vs 52.1%, p <0.001), pathological Gleason sum greater than 7 (9.5% vs 13.4% vs 17.2%, p <0.001) and larger tumor volume (3.7 vs 4.7 vs 5.2 cc, p <0.001). Pathological Gleason sum in men older than 70 years did not differ between the early and late prostate specific antigen eras (p = 0.071). Men older than 70 years had a higher risk of prostate specific antigen recurrence, distant metastasis and disease specific death on univariate (p <0.05) but not multivariable analysis.
Men older than 70 years had higher risk disease and poorer survival in the early and late prostate specific antigen eras. Pathological Gleason sums did not change between the 2 eras. Patient age was an important variable in prostate specific antigen screening, biopsy, treatment and prognosis.
The Journal of urology 09/2009; 182(5):2242-8. · 3.75 Impact Factor