Despite a gradual decrease in smoking rates among adults, the proporti
on of youth who smoke regularly has remained stable. Among high school
students in 1997, 19.9% of white, 7.2% of African American, and 10.9%
of Latino youth reported smoking during at least 20 of the previous 3
0 days. Ethnic differences in beliefs, attitudes, and behavior about s
moking have not been systematically considered in developing preventio
n interventions for adolescents. Effective school-based smoking-preven
tion interventions have been developed, but these are usually not appr
opriately implemented. Policy proposals and current laws that affect t
he marketing of tobacco to youth need to be emphasized as evidence inc
reases that marketing by the tobacco industry targets youth and leads
to more smoking. Smoking-prevention programs have been designed to inv
olve physicians and other health care professionals in the clinical se
tting, but limited data exist on their efficacy. We review the guideli
nes for involving the clinicians who provide care to children in preve
nting the onset of tobacco use, counseling parents of children who smo
ke, and counseling adolescents who have started smoking. Finally, we s
ummarize the future directions of smoking-prevention research and prog
rams.