@article{01GQ24AE1JFCWT62V8P6PAFCD9,
  abstract     = {{QuestionDigital interventions based on cognitive-behavioural therapy (iCBT) is associated with reductions in suicidal ideation. However, fine-grained analyses of effects and potential effect-moderating variables are missing. This study aimed to investigate the effectiveness of iCBT on suicidal ideation, effect moderators, effects on suicide attempts and predictors of adherence. Study selection and analysisWe systematically searched CENTRAL, PsycINFO, Embase and PubMed for randomised controlled trials that investigated iCBT for suicidal ideation or behaviours. Participants reporting baseline suicidal ideation were eligible. We conducted a one-stage individual participant data (IPD) meta-analysis. Suicidal ideation was the primary outcome, analysed as three indices: severity of suicidal ideation, reliable changes and treatment response. FindingsWe included IPD from nine out of ten eligible trials (2037 participants). iCBT showed significant reductions of suicidal ideation compared with control conditions across all indices (severity: b=-0.247, 95% CI -0.322 to -0.173; reliable changes: b=0.633, 95% CI 0.408 to 0.859; treatment response: b=0.606, 95% CI 0.410 to 0.801). In iCBT, the rate of reliable improvement was 40.5% (controls: 27.3%); the deterioration rate was 2.8% (controls: 5.1%). No participant-level moderator effects were identified. The effects on treatment response were higher for trials with waitlist-controls compared with active controls. There were insufficient data on suicide attempts. Human support and female gender predicted treatment adherence. The main source of potential bias was missing outcome data. ConclusionsThe current evidence indicates that iCBT is effective in reducing suicidal ideation irrespective of age, gender and previous suicide attempts. Future studies should rigorously assess suicidal behaviour and drop-out reasons.}},
  author       = {{Büscher, Rebekka and Beisemann, Marie and Doebler, Philipp and Micklitz, Hannah M and Kerkhof, Ad and Cuijpers, Pim and Batterham, Philip J and Calear, Alison L and Christensen, Helen and De Jaegere, Eva and Domhardt, Matthias and Erlangsen, Annette and Eylem van Bergeijk, Ozlem and Hill, Ryan and Lungu, Anita and Mühlmann, Charlotte and Pettit, Jeremy W and Portzky, Gwendolyn and Steubl, Lena S and van Spijker, Bregje A J and Tighe, Joseph and Werner-Seidler, Aliza and Wilks, Chelsey R and Sander, Lasse B}},
  issn         = {{1362-0347}},
  journal      = {{EVIDENCE-BASED MENTAL HEALTH}},
  keywords     = {{Psychiatry and Mental health,child & adolescent psychiatry,adult psychiatry,suicide & self-harm}},
  language     = {{eng}},
  number       = {{E1}},
  pages        = {{E8--E17}},
  publisher    = {{BMJ}},
  title        = {{Digital cognitive–behavioural therapy to reduce suicidal ideation and behaviours : a systematic review and meta-analysis of individual participant data}},
  url          = {{http://doi.org/10.1136/ebmental-2022-300540}},
  volume       = {{25}},
  year         = {{2022}},
}

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