Helen MacDonald

And also finding something quite interesting that perhaps there was less of a benefit for women.

So here is our verdict or their verdict.

They make weak recommendations and suggest that there is limited evidence to suggest screening is worth it if you have less than a 3% risk of colorectal cancer over the next 10 years.

And there is a handy online tool where you can go and work out what your risk of colorectal cancer is.

If all of the testing options are available to you in your healthcare system, there are lots of different pros and cons of them.

And mostly it's the practical issues or the convenience of those tests that's likely to drive your decision rather than there being a standout winner amongst those tests.

And overall, the guidance suggests that there's really an increased need for shared decision making and discussion about what people's preferences are as to whether it's worth it.

So they're 3% risk, are they?

Well, that's very interesting, because one of the things that the team highlight as an uncertainty at the end of the paper was a lack of information about what the public actually viewed as a reasonable threshold to offer screening.

Well, I think this...

The team decided to go against an age-based approach because there are people either side of those ages that can have differing risks.

Or I guess you could use this to up the risk.

I mean, if you wanted to identify a higher risk population and derive a bigger benefit, you could, couldn't you?

It was one of the most challenging ones.

Yeah, actually, if you are going to use this with a patient, what I would suggest that you do is click through onto the Magic site, which is linked from the article.

Because there you can type in your individual risk and you can pick the outcomes and results.

conveniences that matter to you and pull it together in a very personalized way.

On our site and in our infographic, I think it was extremely challenging to present a summary.

So we're very aware of the fact that the graphic for this one is really only giving you the very tip of the iceberg of what data is behind that and what you can do with it.

Basically, should you scan very pregnant ladies?