Interesting. I always thought colon cancer was mostly untreatable so it’s news to me that effective treatments exist. And I’m a fairly well read person. And I’ve never heard and criticism of colonoscopies as being ineffective. It’s usually the contrary.
Only 3 out of 1,000 died from the disease during the 10 years the researchers followed the participants, regardless of if they were offered screening or not. There was no significant decrease in the mortality rate for the screening group.
Hope this helps.