Prevention of depression among Icelandic adolescents: A 12-month follow-up
Section snippets
Participants
The initial participants who participated in a screening process were 1920 ninth grade Icelandic adolescents who were 14- or 15-years-old at the beginning of the study. Following the selection procedures and exclusion and inclusion criteria described in detail in Arnarson and Craighead (2009), 171 participants were randomly assigned to the study conditions. Assessment periods included baseline
Results
Of the 171 students who began the experimental study, 22 dropped out before the completion of the posttest (6 girls and 6 boys from the prevention group, and 6 girls and 4 boys from the TAU group); thus, 149 students (87.1%) participated in the posttest. One hundred thirty six students (79.5%) completed the 6-month follow-up assessment; 35 dropped out before the completion of the 6-month follow-up assessment (10 girls and 10 boys from the prevention group, and 9 girls and 6 boys from the TAU
Discussion
The 12-month follow-up data indicated that the preventive impact of a school-based program designed to prevent the initial episode of depression and/or dysthymia for “at-risk” teens was still present one year following the completion of participation in the program. Students who participated in the prevention intervention program had experienced significantly fewer initial episodes of depression or dysthymia when compared to TAU control participants who only participated in assessments at
Acknowledgements
This research was supported in part by the Icelandic Science Fund (RANNIS), the University of Iceland Research Fund, the Landspitali-University Hospital Research Fund, and the Arnór Björnsson Memorial Fund. The study was also supported in part by a National Institute of Mental Health Grant R03-MH066207 (Craighead, PI), and it was written in part by the support to Craighead of “The Pursuit of Happiness” project established by the Center for the Study of Law and Religion at Emory University and
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2019, Behavior TherapyCitation Excerpt :Utilizing a design representative of the likely occurrence when a public school implements an indicated prevention program for adolescents “at-risk” for depression, we allowed the identified “at-risk” adolescents to choose whether or not to participate in the program. The effects of the program in preventing the initial episode of depressive disorders were quite similar to those obtained in a fully randomized trial with the same program when it had been evaluated in Iceland (Arnarson & Craighead, 2009, 2011), and the positive impact of the program extended throughout the approximately 2 years of the follow-up period. The NNT was also quite similar to that obtained in Iceland and reported in the most rigorous meta-analyses of prevention of depression in school settings (van Zoonen et al., 2014).
Indicated preventive interventions for depression in children and adolescents: A meta-analysis and meta-regression
2019, Preventive MedicineCitation Excerpt :Twenty seven articles (eExcluded articles (b)) were ineligible and thus excluded as illustrated in Fig. 1. This left a total of 38 articles (Arnarson and Craighead, 2009; Arnarson and Craighead, 2011; Berry and Hunt, 2009; Hunt et al., 2009; Charkhandeh et al., 2016; Clarke et al., 1995; Duong et al., 2016; Horowitz et al., 2007; Gillham et al., 2006a; Gillham et al., 1995; Gillham et al., 2006b; Gillham et al., 2007; Kosters et al., 2015; Balle and Tortella-Feliu, 2010; Manassis et al., 2010; McCarty et al., 2013; McCarty et al., 2011; Poppelaars et al., 2016; Nobel et al., 2012; Roberts et al., 2003; Rohde et al., 2014; Rohde et al., 2015; Seligman et al., 1999; Seligman et al., 2007; Spence et al., 2003; Sheffield et al., 2006; Stallard et al., 2012; Stice et al., 2007; Stice et al., 2008; Stice et al., 2010; Wijnhoven et al., 2014; Yu and Seligman, 2002; Dobson et al., 2010; Clarke et al., 2001; Kowalenko et al., 2005; Singhal et al., 2014; Woods and Jose, 2012; Hyun et al., 2005) with 49 unique comparisons from 34 trials as summarized in supplementary material (eSummary of included studies(c)). The Kappa agreement statistic between CN and RS was 0.84 (see supplementary material, eAgreement statistic (d)).