Abstract summary 

There is growing evidence that fostering mental well-being and flourishing might effectively prevent mental disorders. In this study, we examined whether a 9-week comprehensive positive self-help intervention with email support (TL-E) was effective in enhancing well-being and flourishing and decreasing anxiety and depressive symptoms in a non-clinical sample.A total of 275 participants with low or moderate well-being (mean age = 48 years, 86% female) were randomly assigned to a TL-E ( = 137) or wait-list control group (WL;  = 138). Participants completed online self-reporting questionnaires at baseline and at 3, 6 and 12 months.Repeated measure analyses revealed significant more improvement on mental well-being ( = 42.00,  ≤ 0.001,  = 0.66, 95% CI = 0.42-0.90), anxiety ( = 21.65,  ≤ 0.001,  = 0.63, 95% CI = 0.39-0.87) and depression ( = 13.62,  ≤ 0.001,  = 0.43, 95% CI = 0.19-0.67) in the TL-E group versus the WL group. The proportion of flourishing in the TL-E group increased from 7 to 30% after 3 months (NNT = 5.46) and to 34% after 6 months (NNT = 5.25). All within group effects were maintained up to 12 months. We found no meaningful dose-response relationship for adherence, nor a clear moderator pattern.It is unknown whether results were influenced by the email support that accompanied the self-help intervention since TL-E was only compared to a wait-list condition. The generalizability of the findings is limited by the self-selected sample of mainly higher-educated women.A guided positive self-help intervention might be considered as a new mental health promotion strategy because it has the potential to improve well-being up to the status of flourishing mental health, and to decrease anxiety and depressive symptomatology.

Authors & Co-authors:  Schotanus-Dijkstra Marijke M Drossaert Constance H C CHC Pieterse Marcel E ME Boon Brigitte B Walburg Jan A JA Bohlmeijer Ernst T ET

Study Outcome 

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