Do guided internet-based interventions result in clinically relevant changes for patients with depression? An...

Area of Science:

• Psychiatry and Mental Health
• Digital Health
• Evidence-Based Medicine

Background:

• Clinically relevant changes in guided internet-based interventions for depression are not well understood.
• Methodological limitations hinder identification of patient subgroups benefiting most from these interventions.

Purpose of the Study:

• To investigate response and remission rates in guided internet-based interventions for adult depression.
• To identify moderators of treatment outcomes in randomized controlled trials (RCTs) using an individual patient data meta-analysis.

Main Methods:

• Conducted literature searches across major databases (PubMed, Embase, PsycINFO, Cochrane Library).
• Performed an individual patient data meta-analysis on 24 RCTs involving 4889 participants.
• Utilized mixed-effects models and the Reliable Change Index to analyze response and remission rates.

Main Results:

• Guided internet-based interventions significantly increased response (OR=2.49) and remission rates (OR=2.41) compared to control groups.
• Older age, being native-born, and greater baseline depressive symptom severity were associated with higher response and remission rates.
• Age and ethnicity moderated treatment effects on remission.

Conclusions:

• Guided internet-based interventions demonstrate substantial positive effects on depression treatment response and remission.
• These interventions can complement existing mental health services and address the treatment gap.
• Identifying patient moderators can optimize the application of digital mental health interventions.