Back in 2016, I ran a webinar for my EmpowerEd membership group on cancer screening. (You can view this, along with many hundreds of hours of other webinars on all things nutrition- and health-related, by taking advantage of the 1-month free trial of EmpowerEd membership.)
During this webinar, I noted that the first randomised controlled trial of screening colonoscopy for the prevention of colorectal cancer would report its findings in the mid-2020s.
Well, those results have been reported, a little earlier than expected, and they validate the scepticism that I expressed about cancer screening in general during the 2016 webinar:
People who were invited to undergo screening colonoscopy were less likely to be diagnosed with colorectal cancer, but they were not less likely to die from colorectal cancer, nor did they have any lower risk of dying overall.