• The four most commonly diagnosed cancers (lung, breast,
  prostate and colorectal cancers) are expected to account for about 48% of all cancers diagnosed in 2025.

• It is estimated that 42% of people in Canada will be diagnosed with cancer in their lifetime

• Quebec is expected to have the highest cancer incidence rate. British Columbia is expected to have the lowest cancer incidence rate of all the provinces.

• In the early 1990s, five-year net survival for all
  cancers combined was only 55%, but estimates
  show that it has reached 64%.

https://cdn.cancer.ca/-/media/files/cancer-information/resources/publications/canadian-cancer-statistics-2025/2025_pdf_final_en.pdf

Would love to know why the geography has such an impact. When we are talking porcentage, it should be the same across the country?

Probably unrelated to geography, but rather sub-national culture(s), provincial/territorial public health initiatives, and provincial discrepancies in health care delivery.

Also odd that OP said QC is projected to have the highest rate, when NS, NL and NU are higher. Or why BC was stated lowest when there is a BIG drop in rates for YT

I’d like to see it broken down into some other categories, as a whole province contains such a variety of people. One would be socioeconomic status - it would be interesting to see the impact that ability to afford quality food has. Habits, activity levels, stress levels would all be fascinating to learn more about.

Its in the pdf. Likely its bad data.

Differences in cancer rates between provinces
and territories could be the result of different risk
factors (such as tobacco smoking and obesity),
as well as differences in diagnostic practices,
data collection and data availability. For example,
projections for Quebec are based on data up to
2017, while data up to 2019 were available for
other provinces and territories, which could have
influenced Quebec’s ranking.

In addition to the sampling issues others have mentioned, there may be some environmental issues contributing to the stats—some areas likely have higher levels of radon in the soil, and thus higher levels of radon gas exposure, for instance.