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To determine whether racial/ethnic differences in patient experiences with care, potentially leading to underutilization of necessary care, are associated with disparities in Gleason score at diagnosis.We used the SEER-CAHPS linked dataset to identify Medicare beneficiaries who completed a Consumer Assessment of Healthcare Providers and Systems (CAHPS) survey prior to diagnosis of prostate cancer. Independent variables included aspects of patient experiences with care captured by CAHPS surveys. We conducted survey weighted multivariable multinomial logistic regression analyses, stratified by patient race/ethnicity, to estimate associations of CAHPS measures with Gleason score at diagnosis.Of the 4,245 patients with prostate cancer, most were non-Hispanic white (NHW) (77.6%), followed by non-Hispanic black (NHB) (8.4%), Hispanic (8.4%), and Asian (5.6%). Excellent experience with getting needed prescription drugs was associated with lower odds of Gleason scores of 7 and 8-10 in NHBs (7: OR = 0.19, 95% CI = 0.05-0.67; 8-10: OR = 0.04, 95% CI = 0.01-0.2) and lower odds of 8-10 in NHWs (OR = 0.61, 95% CI = 0.40-0.93). For NHBs, excellent primary physician ratings were associated with greater odds of a Gleason score of 8-10 (OR = 13.28, 95% CI = 1.53-115.21).Patient experiences with access to care and physician relationships may influence Gleason score in different ways for patients of different racial/ethnic groups. More research, including large observational studies with greater proportions of racial/ethnic minority patients, is necessary to understand these relationships and target interventions to overcome disparities and improve patient outcomes.

A study was conducted to determine if a structured didactic curriculum for the medical student radiation oncology clerkship improved objective knowledge compared with clerkships not utilizing a structured curriculum. Results demonstrated improved objective knowledge postcurriculum. In addition, students receiving the curriculum scored higher at early and late time points compared with students not receiving the curriculum. These results support including a structured didactic curriculum as a standard component of a radiation oncology clerkship. PURPOSE: A structured didactic radiation oncology clerkship curriculum for medical students is in use at multiple academic medical centers. Objective evidence supporting this educational approach over the traditional clerkship model is lacking. This study evaluated the curriculum efficacy using an objective knowledge assessment. METHODS AND MATERIALS: Medical students received the Radiation Oncology Education Collaborative Study Group (ROECSG) curriculum consisting of 3 lectures (Overview of Radiation Oncology, Radiation Biology/Physics, and Practical Aspects of Simulation/Radiation Emergencies) and a radiation oncology treatment-planning workshop. A standardized 20-item multiple choice question (MCQ) knowledge assessment was completed pre- and post-curriculum and approximately 6 months after receiving the curriculum. RESULTS: One hundred forty-six students at 22 academic medical centers completed the ROECSG curriculum from July to November 2016. One hundred nine students completed pre- and post-clerkship MCQ knowledge assessments (response rate 74.7%). Twenty-four students reported a prior rotation at a ROECSG institution and were excluded from analysis. Mean assessment scores increased from pre- to post-curriculum (63.9% vs 80.2%, P < .01). Mean MCQ knowledge subdomain assessment scores all improved post-curriculum (t test, P values < .01). Post-scores for students rotating de novo at ROECSG institutions (n = 30) were higher compared with pre-scores for students with ≥1 prior rotations at non-ROECSG institutions (n = 55) (77.3% vs 68.8%, P = .01), with an effect size of 0.8. Students who completed rotations at ROECSG institutions continued to demonstrate a trend toward improved performance on the objective knowledge assessment at approximately 6 months after curriculum exposure (70.5% vs 65.6%, P = .11). CONCLUSIONS: Objective evaluation of a structured didactic curriculum for the radiation oncology clerkship at early and late time points demonstrated significant improvement in radiation oncology knowledge. Students who completed clerkships at ROECSG institutions performed objectively better than students who completed clerkships at non-ROECSG institutions. These results support including a structured didactic curriculum as a standard component of the radiation oncology clerkship.

We evaluated the association between serum prostate specific antigen (PSA) level and kinetics to predict 18F-sodium fluoride positron emission tomography-computed tomography (18F-NaF PET-CT) positivity for first bone metastases in men with biochemical recurrence after radical prostatectomy. All 18F-NaF PET-CT scans that were performed at our institution during 2010–2014 were queried to find patients who demonstrated biochemical recurrence after radical prostatectomy. Records were reviewed to obtain data on PSA levels and kinetics at the time of 18F-NaF PET-CT and pathologic features of the prostatectomy specimen, which were then used for receiver operating characteristic (ROC) analysis to determine predictability for 18F-NaF PET positivity. Thirty-six patients met our inclusion criteria. Of these, 8 (22.2%) had positive 18F-NaF PET-CT scans. Mean values for PSA, PSA doubling time (PSADT), and PSA velocity (PSAV) were 2.02 ng/ml (range: 0.06–11.7 ng/ml), 13.2 months (range: 1.11–60.84), and 1.28 ng/ml/year (range: 0.1–5.28) for 18F-NaF PET-CT negative scans, and 4.11 ng/ml (range: 0.04–14.38 ng/ml), 8.9 months (range; 0.7–27.8), and 9.06 ng/ml/year (range: 0.04–50.2) for 18F-NaF PET-CT positive scans, respectively (P = 0.07, 0.47, and 0.02, respectively, for PSA, PSADT, and PSAV). ROC analysis for 18F-NaF PET-CT positivity resulted in area under the curve (AUC) values of 0.634 for PSA, 0.598 for PSADT, and 0.688 for PSAV. ROC analysis with combined models gave AUC values of 0.723 for a combination of PSA and PSADT, 0.689 for a combination of PSA and PSAV, and 0.718 for grouping of PSA, PSADT, and PSAV. There was no significant association between 18F-NaF PET-CT positivity and primary tumor Gleason score, TN staging, and status of surgical margins. 18F-NaF PET-CT detected first-time osseous metastases in 22.2% of our patients with biochemical recurrence after prostatectomy with the PSA level range ≤11.7 ng/ml. PSAV was statistically significant in predicting 18F-NaF PET-CT positivity. ROC analysis demonstrated higher AUCs when PSA was combined with PSA kinetics parameters.