I've done two on-line pipe surveys, one with Kevin of this fine website. In addition, I have done a few papers comparing the health of pipe and cigar smokers with non-smokers, former cigarette smokers and cigarette smoker. The data are taken from a sample of 37,000 adults from the National Survey of Drug Use, conducted by the U.S. Department of Health and Human Services. Next month I present a paper, "Smoking and Drinking and Self-Rated Health," at the annual meetings of the American Sociological Association. It's in Vegas so I can smoke!