Surveillance population
Surveillance area for population based surveillance is Metropolitan Toronto and the Region of Peel (population ~4 milion). In addition, hospitals and laboratories in the 5 surrounding regions (Halton, Hamilton, Durham, Simcoe and York) also report to the study enabling us to identify cases from our defined population area that may be admitted to hospitals in other regions. Additional cases from these regions are included when research questions do not require a defined population base and increased sample sizes are beneficial.
Participating TIBDN areas
Populations were retrieved from Statistics Canada, based on census year 2006.
| Area | Total population |
Less than 2 years old |
2 - 64 years old |
Greater than or equals to 65 years old |
|---|---|---|---|---|
| Toronto* | 2,753,131 | 59,724 | 2,312,974 | 380,433 |
| Peel* | 1,364,357 | 31,792 | 1,193,213 | 139,352 |
| Hamilton | 540,012 | 11,121 | 446,495 | 82,396 |
| Halton | 516,336 | 11,826 | 437,029 | 67,481 |
| Durham | 630,206 | 13,833 | 541,875 | 74,498 |
| York | 1,064,385 | 23,200 | 918,129 | 123,056 |
| Simcoe | 463,882 | 9,074 | 384,994 | 69,814 |
*Population base for surveillance
