Suicide is one of the leading causes of death in Spain, representing a public health crisis that requires urgent and effective solutions. The stigma surrounding suicide prevents many at-risk individuals from seeking help, worsening the problem. Addressing this stigma is essential to implement more effective and accessible prevention strategies. This study aims to design and evaluate an innovative mobile health intervention to reduce stigma and encourage help-seeking behaviours in the general population. While the intervention targets the general population, two specific groups will access specialized and tailored content: individuals with low suicidal ideation and family members or close friends of people who have died by suicide. Ecological Momentary Assessments (EMA) will collect real-time data and evaluate the intervention's impact. The study will employ a randomised controlled trial (RCT) with a crossover design, with participants randomly assigned to immediate or delayed use conditions. The intervention's effectiveness and usability will be assessed at four key points through quantitative analyses and qualitative interviews. We hypothesise that the intervention will improve suicide literacy, reduce suicide-related stigma, increase help-seeking behaviours, and demonstrate high usability and acceptability.
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Suicide public stigma
Timeframe: Assessments will be conducted at enrollment, immediately after app completion (14 days after enrollment for the iApp group or at the end of the control phase for the dApp group), and at one-month and three-month follow-ups.
Suicide literacy
Timeframe: Assessments will be conducted at enrollment, immediately after app completion (14 days after enrollment for the iApp group or at the end of the control phase for the dApp group), and at one-month and three-month follow-ups.
Intention to seek help
Timeframe: Assessments will be conducted at enrollment, immediately after app completion (14 days after enrollment for the iApp group or at the end of the control phase for the dApp group), and at one-month and three-month follow-ups.
EMA questionnaire protocol
Timeframe: Public stigma will be assessed daily during the 14-day intervention period. Help-seeking intention and suicidal ideation will be assessed at four specific time points throughout the intervention.