Mollie Z. Hemingway has a fascinating piece in the Wall Street Journal:
“What Americans Really Believe,” a comprehensive new study released by Baylor University yesterday, shows that traditional Christian religion greatly decreases belief in everything from the efficacy of palm readers to the usefulness of astrology. It also shows that the irreligious and the members of more liberal Protestant denominations, far from being resistant to superstition, tend to be much more likely to believe in the paranormal and in pseudoscience than evangelical Christians.
Also, she shows that higher education contributes to belief in superstition! You have got to read the whole article, which includes the fact that comedian Bill Maher, for all of his mockery of Christianity as irrational, himself disbelieves in medicine, vaccination, and the existence of germs.