outlaw: So "percent increase" means an increase from say 5 percent risk to 5.9 percent risk, right? Not 5+18 = 23%? It took me a while to understand these things. When I read that smoking increases lung cancer by 2500%, I was all kinds of confused. I thought 100% percent means I will definitely get cancer, so 2500% increase means what, I'll die of 25 kinds of cancer?
Yes, 18% increase means out of 110 people who eat processed red meat 1 extra person will develop cancer due to their diet. Doesn't sound like a lot but if you scale it up to the population of a country with 11 million meat-eaters then that's an extra 100,000 people getting cancer who could have avoided it, and many more who are less healthy inside than they could be.