Table 1
Number of childhood cancer cases eligible for survival analyses and case distribution, by selected variables, ages 0 to 14, Canada excluding Quebec, 1992 to 2017
| Number | Percent | |
|---|---|---|
| Age at diagnosis in years | ||
| 0 to 4 | 8,244 | 45.7 |
| 5 to 9 | 4,731 | 26.2 |
| 10 to 14 | 5,081 | 28.1 |
| Sex | ||
| Male | 9,714 | 53.8 |
| Female | 8,342 | 46.2 |
| Geographic area of diagnosis | ||
| British Columbia | 2,809 | 15.6 |
| Alberta | 2,572 | 14.2 |
| Saskatchewan | 791 | 4.4 |
| Manitoba | 871 | 4.8 |
| Ontario | 9,382 | 52.0 |
| New Brunswick | 512 | 2.8 |
| Nova Scotia | 613 | 3.4 |
| Prince Edward Island | 84 | 0.5 |
| Newfoundland and Labrador | 338 | 1.9 |
| Territories | 84 | 0.5 |
| Method of diagnosis | ||
| Histology | 15,623 | 86.5 |
| Radiology | 482 | 2.7 |
| Other | 443 | 2.5 |
| Unknown | 1,508 | 8.4 |
| ICCC category and description | ||
| I. Leukemias, myeloproliferative diseases, and myelodysplastic diseases | 6,029 | 33.4 |
| a. Lymphoid leukemias | 4,673 | 25.9 |
| b. Acute myeloid leukemias | 868 | 4.8 |
| c. Chronic myeloproliferative diseases | 196 | 1.1 |
| II. Lymphomas and reticuloendothelial neoplasms | 2,133 | 11.8 |
| a. Hodgkin lymphomas | 731 | 4.0 |
| b. Non-Hodgkin lymphomas (except Burkitt lymphoma) | 713 | 3.9 |
| c. Burkitt lymphoma | 288 | 1.6 |
| d. Miscellaneous lymphoreticular neoplasms | 263 | 1.5 |
| III. CNS and miscellaneous intracranial and intraspinal neoplasms | 3,524 | 19.5 |
| a. Ependymomas and choroid plexus tumour | 339 | 1.9 |
| b. Astrocytomas | 1,600 | 8.9 |
| c. Intracranial and intraspinal embryonal tumours | 851 | 4.7 |
| d. Other gliomas | 532 | 2.9 |
| IV. Neuroblastoma and other peripheral nervous cell tumours | 1,230 | 6.8 |
| a. Neuroblastoma and ganglioneuroblastoma | 1,211 | 6.7 |
| V. Retinoblastoma | 411 | 2.3 |
| VI. Renal tumours | 955 | 5.3 |
| a. Nephroblastoma and other nonepithelial renal tumours | 904 | 5.0 |
| VII. Hepatic tumours | 282 | 1.6 |
| VIII. Malignant bone tumours | 794 | 4.4 |
| a. Osteosarcomas | 406 | 2.2 |
| c. Ewing tumour and related sarcomas of bone | 311 | 1.7 |
| IX. Soft tissue and other extraosseous sarcomas | 1,139 | 6.3 |
| a. Rhabdomyosarcomas | 572 | 3.2 |
| d. Other specified soft tissue sarcomas | 335 | 1.9 |
| X. Germ cell tumours, trophoblastic tumours, and neoplasms of gonads | 595 | 3.3 |
| b. Malignant extracranial and extragonadal germ cell tumours | 147 | 0.8 |
| c. Malignant gonadal germ cell tumours | 240 | 1.3 |
| XI. Other malignant epithelial neoplasms and malignant melanomas | 728 | 4.0 |
| b. Thyroid carcinomas | 275 | 1.5 |
| f. Other and unspecified carcinomas | 259 | 1.4 |
| XII. Other and unspecified malignant neoplasms | 209 | 1.2 |
|
Notes: CNS = central nervous system; ICCC = International Classification of Childhood Cancer. Quebec is excluded because cases diagnosed in Quebec from 2011 onward had not been submitted to the Canadian Cancer Registry. All estimates are based on invasive behaviour cases only. Percentages may not sum to 100% because of rounding. Source: Statistics Canada, Canadian Cancer Registry death linked file (1992 to 2017). |
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