Nearly 443,000 U.S. deaths are attributable annually to cigarette smoking, which makes tobacco, including secondhand smoke, the most preventable cause of disease, disability, and death in the U.S. An estimated 19.8 million women in the U.S. smoke. Smoking during pregnancy can result in significant complications for the pregnant woman, her fetus, and members of the woman's household who are exposed to secondhand smoke. Smoking is associated with increased...