practiced in the United States. Time and resource constraints precluded review of some interventions (e.g., communitywide risk factor screening and counseling). Interventions reviewed were either single-component (i.e., using only one activity to sunporno desired outcomes) or multicomponent.

reviewed were sunporno single-component (i.e., using only one activity to achieve desired outcomes) or multicomponent (i.e., using more than one related activity). Interventions sunporno grouped together on the basis of their similarity. Some studies provided evidence for more than sunporno intervention. In these cases, the studies were reviewed for each sunporno intervention. The classifications or nomenclature used in this report were sunporno sunporno ensure comparability in the review process, and these classifications sometimes differ from those used in the original studies. To be included in the reviews of effectiveness, studies had to meet these criteria: a) they were limited sunporno primary investigations of interventions selected for evaluation; b) they were published in English from January 1980 through May 2000; c) they sunporno conducted in industrialized countries; and d) they compared outcomes in groups of persons exposed to the intervention with outcomes in groups sunporno persons not exposed or less exposed.

relevant program recommendations proposed by CDC (18), the National Cancer Institute (19), the Public Health Service.