Recent polls show Atheists are the most superstitious people in the world. Opinions?

Not all people who describe themselves as atheists are rational, and some in that survey do not even seem to know what an atheist is. While certain religious beliefs may rule out certain superstitions, I cannot see how you can define religion in such a way to differentiate it from superstition, so exclude religious beliefs from superstitious ones seems wrong to me. They are merely (in some cases at least) mutually exclusive superstitions.