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. 2024 Jun 6;18(1):64.
doi: 10.1186/s13034-024-00748-6.

Short-term effects of the strengthening families Program (SFP 10-14) in Brazil: a cluster randomized controlled trial

Zila M Sanchez  1 , Juliana Y Valente  2 , Fabiane A Gubert  3 , Patrícia P O Galvão  2 , Hugo Cogo-Moreira  4 , Lidiane N Rebouças  3 , Miguel Henrique S Dos Santos  2 , Márcia H S Melo  5 , Sheila C Caetano  5
Affiliations

Short-term effects of the strengthening families Program (SFP 10-14) in Brazil: a cluster randomized controlled trial

Zila M Sanchez et al. Child Adolesc Psychiatry Ment Health. .

Abstract

Introduction: This study reports the evaluation of the short-term effects of the Strengthening Families Program (SFP 10-14), adapted as Famílias Fortes (Strong Families) in Brazil, on preventing adolescent drug use and improving parenting behaviors.

Methods: A two-arm, parallel cluster randomized controlled trial was conducted in 60 Social Assistance Reference Centers (SARC) from 12 Brazilian municipalities. In each city, the SARC were randomly assigned to the intervention or control group. A total of 805 families participated in the study, each contributing data from one parent or legal guardian and one adolescent totaling 1,610 participants. Data collection occurred before intervention implementation and 6 months after baseline collection. Data were analyzed using multilevel mixed-effects modeling with repeated measures in two different paradigms: Intention to Treat (ITT) and Per protocol (PP). The study was registered in the Brazilian Ministry of Health Register of Clinical Trials (REBEC), under protocol no. RBR-5hz9g6z.

Results: Considering the ITT paradigm, the program reduced the chance of parents and legal guardians being classified as negligent by 60% (95%CI 0.21; 0.78), increased the use of nonviolent discipline by caregivers (Coef 0.33, 95%CI 0.01; 0.64) and decreased the chance of adults exposing adolescents to their drunken episodes by 80% (95%CI 0.06; 0.54). No program effects were observed on outcomes related to adolescent drug use. Similar results were found for the PP paradigm.

Conclusion: The positive effects on family outcomes suggest preventive potential of the program among the Brazilian population. Long-term evaluations are necessary to verify if the program can also achieve the drug use reduction goals not observed in the short term.

Keywords: Adolescents; Drug use; Family, randomized controlled trial; Parenting skills; Prevention programs.

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Conflict of interest statement

Authors declare that they have no conflict of interest.

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Flowchart of the randomized controlled trial of the Famílias Fortes program
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