Cigarette smoking among adults--United States, 1991.

From 1965 through 1985, smoking prevalence in the United States declined at a rate of 0.5 percentage points per year, and from 1987 through 1990, the rate of decline accelerated to 1.1 percentage points per year. CDC monitors the use of tobacco in the United States to evaluate progress in reducing smoking prevalence. To determine the prevalence of smoking among U.S. adults during 1991, the National Health Interview Survey-Health Promotion and Disease Prevention (NHIS-HPDP) supplement collected self-reported information on cigarette smoking from a representative sample of the U.S. civilian, noninstitutionalized population aged > or = 18 years. This report summarizes the results of this survey.