EPID-18. MALIGNANT PRIMARY BRAIN AND OTHER CENTRAL NERVOUS SYSTEM TUMOURS DIAGNOSED AMONG THE CANADIAN POPULATION FROM 2009 TO 2013

摘要

The Canadian Brain Tumour Registry (CBTR) project was established with the aim of enhancing infrastructure for surveillance and clinical research to improve health outcomes for brain tumour patients in Canada. We present a national surveillance report on malignant primary brain and central nervous system (CNS) tumours diagnosed in the Canadian population from 2009–2013. Patients were identified through the Canadian Cancer Registry (CCR); an administrative dataset that includes cancer incidence data from all provinces/territories in Canada. Cancer diagnoses are coded using the ICD-O3 system. Tumour types were classified by site and histology using The Central Brain Tumour Registry of the United States definitions. Incidence rates (IR) and 95% confidence intervals (CI) were calculated per 100,000 persons and standardized to the 2011 census population age distribution. Overall, 12,115 malignant brain and CNS tumours were diagnosed in the Canadian population from 2009–2013 (IR:8.43; 95%CI:8.28,8.58). Of these, 6,845 were diagnosed among males (IR:9.72; 95%CI:9.49,9.95) and 5,270 among females (IR:7.20; 95%CI:7.00,7.39). The most common histology overall was glioblastoma (n=5,830; IR:4.06; 95%CI:3.95,4.16). Among those aged 0–19 years, 1,130 malignant brain and CNS tumours were diagnosed from 2009–2013 (IR:3.36; 95%CI:3.16,3.56). Of these, 625 were diagnosed among males (IR:3.32; 95%CI:3.34,3.92) and 505 among females (IR:3.08; 95%CI:2.81,3.36). The most common histology among the paediatric population was pilocytic astrocytoma (n=245; IR:0.73; 95%CI:0.64,0.83). The presentation will include: IRs by histologies, the geographic distribution of cases, an analysis of incidence trends over time for major histological groups and a discussion of progress in obtaining surveillance information on nonmalignant tumours.