Does it work? (4) A response to Chad’s comment

The Relative Risk Paradox

Chad’s comment to the “Does it Work 2” post asked, 'Is it correct to say that relative risk is more useful where you expect close to 100% of a population to be exposed to a pathogen?' We set out how to think about this issue. If you bear with us and follow our estimates, you'll end up with a different viewpoint about relative effects in the context of r…