TABLE I.
Cohort characteristicsa
| Characteristic | All cases [n (% column)] | Deaths [n (% row)] |
|---|---|---|
| Overall | 20,875 (100) | 14,895 (71.4) |
| Sex | ||
| Men | 11,710 (56.1) | 8,495 (72.5) |
| Women | 9,165 (43.9) | 6,405 (69.9) |
| Age group at diagnosis | ||
| ≤20 Years | 2,125 (10.2) | 600 (28.2) |
| 21–44 Years | 3,750 (18.0) | 1,625 (43.3) |
| 45–64 Years | 7,235 (34.7) | 5,520 (76.3) |
| ≥65 Years | 7,760 (37.2) | 7,150 (92.1) |
| Region | ||
| Ontario | 8,085 (38.7) | 5,170 (63.9) |
| Alberta | 1,825 (8.7) | 1,330 (72.9) |
| British Columbia | 2,575 (12.3) | 2,000 (77.7) |
| Atlantic | 1,640 (7.9) | 1,265 (77.1) |
| Quebec | 5,425 (26.0) | 4,100 (75.6) |
| Saskatchewan and Manitoba | 1,300 (6.2) | 1,020 (78.5) |
| Territories | 30 (0.1) | 10 (33.3) |
| Histology | ||
| Glioblastoma multiforme | 8,365 (40.1) | 7,765 (92.8) |
| Anaplastic astrocytoma | 610 (2.9) | 470 (77.0) |
| Diffuse astrocytoma | 2,310 (11.1) | 1,795 (77.7) |
| Anaplastic oligodendroglioma | 555 (2.7) | 325 (58.6) |
| Oligoastrocytoma | 720 (3.4) | 380 (52.8) |
| Oligodendroglioma | 955 (4.6) | 315 (33.0) |
| Glioma (NOS) | 1,050 (5.0) | 650 (61.9) |
| All others | 6,305 (30.2) | 3,200 (50.8) |
| Diagnostic confirmation | ||
| Microscopic | 15,975 (76.5) | 11,310 (70.8) |
| Other | 4,895 (23.4) | 3,585 (73.2) |
a
Because of rounding, in accordance with Statistics Canada requirements, numbers and percentages reported here do not add up to the total frequencies and 1.
NOS = not otherwise specified.