Overall
By Sex
By Age Group
Cancer incidence data are derived from the Ontario Cancer Registry (OCR) operated by Cancer Care Ontario. The OCR contains information on Ontario residents who have been newly diagnosed with all types of malignant cancers, with the exception of basal cell and squamous cell (non-melanoma) skin cancers. Cancer sites were coded using the Third Edition of the International Classification of Diseases for oncology (ICDO-3). Beginning in 2014, the OCR adopted the National Cancer Institute (NCI) SEER standards for counting multiple primaries for cancer cases diagnosed in 2010 and beyond. This standard is more liberal than the previously used case counting rules from the modified version of the International Association of Cancer Registries (IACR). Cancer incidence data presented on this and other HealthSTATS pages reflect the new rules for counting multiple primary cancers. To ensure consistent interpretation of trends, cancer incidence data will only be presented from 2010 onward on all HealthSTATS pages.
Overall
The rate of new cancer cases (also called the incidence rate) provides a measure of the risk of developing cancer over a given period of time. In 2018 among Simcoe Muskoka residents, there were over 100 new cases of oral cancer diagnosed for an age-standardized incidence rate of 16 (12.8, 19.0) new cases per 100,000 population. This was not significantly different from the Ontario oral cancer incidence rate of 14 (13.3, 14.4) new cases per 100,000. The oral cancer incidence rates did not change significantly between 2010 and 2018 in Simcoe Muskoka or Ontario as a whole.
By Sex
In 2018, the age-standardized incidence rate for oral cancer among Simcoe Muskoka males was 22 (17.4, 28.2) new cases per 100,000, which was more than double the female rate of 10 (6.6, 13.5) new cases per 100,000. The 2018 age-standardized oral cancer incidence rates for Ontario males and females were not significantly from the comparable Simcoe Muskoka rates.
The oral cancer incidence rates among Simcoe Muskoka males and females did not change significantly between 2010 and 2018. The incidence rates were significantly higher among Simcoe Muskoka males when compared with the female rates for the entire nine-year period.
By Age Group
The risk of being diagnosed with oral cancer increases significantly with age. The age-specific oral cancer incidence rates between 2010 and 2018 (combined) in Simcoe Muskoka were highest among those 65 years and older. The oral cancer incidence rate among Simcoe Muskoka adults 45 to 64 years of age was 28 (25.3, 30.8) new cases per 100,000, which was significantly higher than the comparable provincial rate. The oral cancer incidence rates among all other adult age groups were not significantly different from the comparable provincial rates.
