Factors that Influence Selection of Urinary Diversion among Bladder Cancer Patients in Three Community-Based Integrated Health Care Systems.
Journal: 2018/December - Urology
ISSN: 1527-9995
Abstract:
OBJECTIVE
To assess the relative contributions of patient and surgeon factors for predicting selection of ileal conduit (IC), neobladder (NB), or continent pouch (CP) urinary diversions (UD) for patients diagnosed with muscle-invasive/high-risk non-muscle invasive bladder cancer. This information is needed to enhance research comparing cancer survivors' outcomes across different surgical treatment options.
METHODS
Bladder cancer patients age ≥21 years with cystectomy/UD performed from 1/2010 to 6/2015 in three Kaiser Permanente regions were included. All patient and surgeon data were obtained from electronic health records. A mixed effects logistic regression model was used treating surgeon as a random effect and region as a fixed effect.
RESULTS
Of 991 eligible patients, 794 (80%) received IC. 169 surgeons performed the surgeries and accounted for a sizeable proportion of the variability in patient receipt of UD (ICC=.26). The multilevel model with only patient factors showed good fit (AUC=.93, Hosmer-Lemeshow test p=.44), and older age, female sex, eGFR<45, 4+ comorbidity index score, and stage III/IV tumors were associated with higher odds of receiving an IC vs. NB/CP. However, including surgeon factors (annual cystectomy volume, specialty training, clinical tenure) had no association (p=.29).
CONCLUSIONS
In this community setting, patient factors were major predictors of UD received. Surgeons also played a substantial role, yet clinical training and experience were not major predictors. Surgeon factors such as beliefs about UD options and outcomes should be explored.
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