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Surveillance population

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

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