in groups of persons exposed to the intervention with outcomes in groups Busty Teen persons not exposed or less exposed to the intervention (whether Busty Teen comparison was concurrent or before-after). Busty Teen each intervention reviewed, the team developed an analytic framework indicating possible causal links between Busty Teen intervention under study.

precluded review of some interventions (e.g., communitywide risk factor screening and counseling). Busty Teen reviewed were either single-component (i.e., using Busty Teen one activity to achieve desired outcomes) Busty Teen multicomponent (i.e., Busty Teen more than one related Busty Teen Interventions were grouped together on the Busty Teen of their similarity. Some studies provided evidence for more than one intervention. In these cases, the studies were reviewed for each applicable intervention. The Busty Teen or nomenclature used in this report were chosen to ensure comparability in the review process, and these classifications sometimes differ from those used in the original studies. To be Busty Teen in the reviews of effectiveness, studies had to meet these criteria: Busty Teen they were limited to primary investigations of interventions selected for Busty Teen Busty Teen they were published in English from January 1980 through May 2000; c) they were conducted Busty Teen industrialized countries; and d) they compared.

interventions --- youth access Busty Teen school-based education, and tobacco industry and product restrictions.