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Bladder cancer mortality after a diagnosis of nonmuscle-invasive bladder carcinoma

    Omar Abdel-Rahman

    *Author for correspondence: Tel.: +403 918 9779;

    E-mail Address: omar.abdelsalam@ahs.ca

    Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo 11351, Egypt

    Department of Oncology, University of Calgary, Tom Baker Cancer Centre, Calgary T2N4N2, Alberta, Canada

    Published Online:https://doi.org/10.2217/fon-2018-0861

    Aim: To assess mortality from bladder cancer following a diagnosis of nonmuscle-invasive bladder cancer. Materials & methods: This is a SEER registry-based study. The risk of death from bladder cancer was compared with that of the general population. Cox proportional model was performed to calculate the hazard ratio (HR) for death according to baseline characteristics. Results: The bladder cancer-specific mortality at 20 years was 11%; and it was higher for black patients compared with white patients (adjusted HR: 1.711 [95% CI: 1.564–1.872]; p  <  0.0001); additionally, it was higher for patients older than 70 years old compared with younger patients (adjusted HR: 2.005 [95% CI: 1.916–2.099]; p  < 0 .0001). The risk of bladder cancer mortality increased after diagnosis of a recurrent bladder cancer (both nonmuscle-invasive and muscle-invasive; adjusted HR: 6.97 [95% CI: 6.56–7.40]; p  < 0 .0001). Conclusion: Important predictors for death from bladder cancer following a diagnosis of nonmuscle-invasive bladder cancer include older age at diagnosis and black race.

    Papers of special note have been highlighted as: • of interest

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