You have accessJournal of UrologyCME1 Apr 2023PD29-05 ASSOCIATION OF AGE WITH NON-MUSCLE INVASIVE BLADDER CANCER: A BIOLOGICAL BASIS FOR EPIDEMIOLOGICAL DISPARITIES? Niyati Lobo, Akshay Sood, Zhigang Duan, Wei Shen Tan, Valentina Grajales, Sia Viborg Lindskrog, Lars Dyrskjøt, Aarhus, Denmark, Hui Zhao, Sharon Giordano, Stephen B. Williams, and Ashish M. Kamat Niyati LoboNiyati Lobo More articles by this author , Akshay SoodAkshay Sood More articles by this author , Zhigang DuanZhigang Duan More articles by this author , Wei Shen TanWei Shen Tan More articles by this author , Valentina GrajalesValentina Grajales More articles by this author , Sia Viborg LindskrogSia Viborg Lindskrog More articles by this author , Lars DyrskjøtLars Dyrskjøt More articles by this author , Aarhus Aarhus More articles by this author , Denmark Denmark More articles by this author , Hui ZhaoHui Zhao More articles by this author , Sharon GiordanoSharon Giordano More articles by this author , Stephen B. WilliamsStephen B. Williams More articles by this author , and Ashish M. KamatAshish M. Kamat More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003315.05AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Age disparity in patients with non-muscle-invasive bladder cancer (NMIBC) exists. Whether this is due to differences in cancer care or tumour biology is unclear. We sought to investigate age disparities in NMIBC using individual patient-level data from two cohorts: the Surveillance, Epidemiology, and End Results (SEER)-Medicare database and the publicly available UROMOL dataset. METHODS: SEER-Medicare linked data was used to identify patients, aged ≥66 years, with clinical stage Ta, Tis and T1 NMIBC between 2005-2019 (n=32 225). Multivariable competing-risks Cox regression analyses were used to examine the association between age and recurrence (defined as receipt of TURBT ≥3 months after index diagnosis of NMIBC or progression), progression (defined as receipt of definitive treatment for bladder cancer) and bladder cancer-specific mortality rates after adjusting for demographic-, cancer- and treatment-related variables. Using the UROMOL cohort (n=834), age disparities across transcriptomic, genomic and spatial proteomic domains were assessed. Differences between groups were testing using Pearson’s Chi-square test or Fisher’s test for categorical variables. RESULTS: Analysis of the SEER-Medicare cohort revealed 10-year recurrence rates of 60.9%, 61.1% and 60.4% in patients aged 66-70 yrs, 71-80 yrs and ≥81 yrs, respectively; 10-year progression rates of 29.3%, 32.2% and 38.2%, respectively; and 10-year bladder-cancer specific mortality rates of 5.5%, 7.9% and 14.3%, respectively. Age ≥ 81 yrs was associated with a higher risk of progression (HR 1.32, 95% CI 1.25-1.40, p<0.001) and bladder cancer-specific mortality (HR 2.58, 95% CI 2.27-2.95, p<0.001). Analysis of UROMOL 2021 transcriptomic classes revealed that Class 2a was more frequently observed in older patients (34% in >75 yrs vs. 22% in ≤65 yrs; p=0.004). Compared to patients <65 yrs, those aged >75 yrs were more likely to have TP53 pathway change (54% vs. 38%; p=0.032). UROMOL genomic class 3 was more frequently observed in patients >75 yrs (42% vs. 24%; p=0.001), who also had higher amounts of altered genome (median: 337.7Mb vs. 168.2Mb; p<0.001). No significant differences were observed in immune cell infiltration scores between age groups. CONCLUSIONS: Among SEER-Medicare patients with NMIBC, advanced age is associated with higher risks of progression and bladder-cancer specific mortality. These results reflect age-related molecular biological differences observed across transcriptomic and genomic domains. Source of Funding: Niyati Lobo was supported by The Urology Foundation-Fulbright Scholar Award © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e826 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Niyati Lobo More articles by this author Akshay Sood More articles by this author Zhigang Duan More articles by this author Wei Shen Tan More articles by this author Valentina Grajales More articles by this author Sia Viborg Lindskrog More articles by this author Lars Dyrskjøt More articles by this author Aarhus More articles by this author Denmark More articles by this author Hui Zhao More articles by this author Sharon Giordano More articles by this author Stephen B. Williams More articles by this author Ashish M. Kamat More articles by this author Expand All Advertisement PDF downloadLoading ...
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