title: Longitudinal substance initiation outcomes for a universal preventive intervention combining family and school programs.
abstract: This study evaluated the substance initiation effects of an intervention combining family and school-based competency-training intervention components. Thirty-six rural schools were randomly assigned to 1 of 3 conditions: (a) the classroom-based Life Skills Training (LST) and the Strengthening Families Program: For Parents and Children 10-14, (b) LST only, or (c) a control condition. Outcomes were examined 1 year after the intervention posttest, using a substance initiation index (SII) measuring lifetime use of alcohol, cigarettes, and marijuana and by rates of each individual substance. Planned intervention-control contrasts showed significant effects for both the combined and LST-only interventions on the SII and on marijuana initiation. Relative reduction rates for alcohol initiation were 30.0% for the combined intervention and 4.1% for LST only.
authors.affiliation: Institute for Social and Behavioral Research, Iowa State University, Ames 50010, USA.
authors.forename: Richard L
authors.initials: RL
authors.lastname: Spoth
authors.forename: Cleve
authors.initials: C
authors.lastname: Redmond
authors.forename: Linda
authors.initials: L
authors.lastname: Trudeau
authors.forename: Chungyeol
authors.initials: C
authors.lastname: Shin
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010290:Parents / Q000193:education / Q000523:psychology; D015397:Program Evaluation; D012424:Rural Population; D012574:Schools; D013334:Students / Q000523:psychology*; D019966:Substance-Related Disorders / Q000453:epidemiology* / Q000517:prevention & control* / Q000523:psychology; D011795:Surveys and Questionnaires; D014481:United States / Q000453:epidemiology