Colorectal cancer rates are increasing globally, but the data in the older groups needs to take into account changes in screening ages

> The authors saw the sharpest increase in incidence rates among the 45-49-year-old age group, with an increase of 12.76% annually from 2019-2023. They said that this increase is likely driven by more people undergoing colorectal cancer screening after national recommendations lowered the age to begin screening from 50 to 45.

So the rates for 45-50 year olds can’t be directly compared in the US.

The strange part about the change in colorectal cancer rates around the world is that it’s showing a large increase in much younger people. I’ve read some studies where the sampled time period showed cancer rates declining for elderly people while they increased for very young people.