METHODS
Study design
Statistics Canada collects information on cancer incidence and mortality by health region, which are administrative areas defined by provincial ministries of health (XX). We conducted a cross-sectional study using this administrative level to compare oncologic outcomes across health regions, and assess the potential contributing factors. For the province of Ontario which is divided into either public health units or local health integration networks, we chose to use public health units as there were a greater number of divisions within the province.