• Neuro-oncology · Feb 2019

    Malignant primary brain and other central nervous system tumors diagnosed in Canada from 2009 to 2013.

    • Emily V Walker, Faith G Davis, and CBTR founding affiliates.
    • School of Public Health, University of Alberta, Edmonton, Alberta, Canada.
    • Neuro-oncology. 2019 Feb 19; 21 (3): 360-369.

    BackgroundWe present a national surveillance report on malignant primary brain and other central nervous system (CNS) tumors diagnosed in the Canadian population in 2009-2013.MethodsPatients were identified through the Canadian Cancer Registry, an administrative dataset that includes cancer incidence data from all provinces/territories in Canada. Tumor types were classified by site and histology using the definitions from the Central Brain Tumor Registry of the United States (CBTRUS). Incidence rates (IRs) and 95% confidence intervals (CIs) were calculated per 100000 person-years (py) and age-standardized to the 2011 Canadian population for comparisons within Canada and to the 2000 United States population for comparisons with the US.ResultsOverall, 12515 malignant brain and other CNS tumors were diagnosed in the Canadian population in 2009-2013 (IR: 8.71/100000 py; 95% CI: 8.56, 8.86); 7085 were among males (IR: 10.06/100000 py; 95% CI: 9.82, 10.29) and 5430 among females (IR: 7.41/100000 py; 95% CI: 7.22, 7.61). Of these, 12115 were classifiable according to histological subgroups defined by CBTRUS. The most common histology was glioblastoma (IR: 4.06/100000 py; 95% CI: 3.95, 4.16). Among those aged 0-19 years, 1130 malignant brain and CNS tumors were diagnosed in 2009-2013 (IR: 3.36/100000 py; 95% CI: 3.16, 3.56). The most common histology among the pediatric population was embryonal tumor (IR: 0.74/100000 py; 95% CI: 0.65, 0.84).ConclusionsThese data represent an initial detailed report on the frequency and distribution of primary malignant brain and other CNS tumors diagnosed in the Canadian population in 2009-2013. The reported distributions of tumor diagnoses by sex and age reflected expected patterns based on the literature from similar populations. A report incorporating data on nonmalignant primary brain tumors is forthcoming.© The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Neuro-Oncology.

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