Publications by authors named "David D Ebert"

Introduction: Internet-delivered cognitive behavioral therapy for insomnia (iCBT-I) is an effective treatment. However, dropout is a common challenge in digital therapeutics. This study examines dropout in iCBT-I by analyzing reported reasons for dropout and investigating whether baseline variables and intervention usage data can predict dropout.

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Background: Mental disorders are highly prevalent among students worldwide. This study aims to examine comorbidity and temporal associations between mental disorders among students.

Methods: The study included 72,288 students from 18 countries as part of the World Mental Health International College Student (WMH-ICS) Initiative, with cross-sectional data collected between 2017 and 2023.

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Purpose: This study investigates associations of childhood adversities (CAs) with lifetime prevalence, 12-month prevalence, and 12-month persistence of mental disorders in a large cross-national sample of university students.

Methods: Data came from epidemiologic surveys carried out by the World Mental Health International College Student (WMH-ICS)Initiative across 18 countries (n=60,719). The web-based surveys screened for lifetime and 12-month prevalence and age-of-onset of common DSM-5 disorders (Major Depressive Disorder, Bipolar I/II Disorder, Generalized Anxiety Disorder, Panic Disorder, Posttraumatic Stress Disorder, Alcohol and Drug Use disorders, Attention-Deficit/Hyperactivity Disorder) and five types of CAs (family dysfunction, emotional abuse, physical abuse, sexual abuse, neglect).

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Background: It remains unclear which individuals with subthreshold depression benefit most from psychological intervention, and what long-term effects this has on symptom deterioration, response and remission.

Aims: To synthesise psychological intervention benefits in adults with subthreshold depression up to 2 years, and explore participant-level effect-modifiers.

Method: Randomised trials comparing psychological intervention with inactive control were identified via systematic search.

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Objective: Findings from depression research increasingly suggest a gender-dependent clinical appearance of relevant symptoms. At the same time, there is a lack of gender-sensitive screening procedures in clinical practice to better identify hidden depression in men. The present study examines the factor structure and psychometric characteristics of the translated version of the Gender Inclusive Depression Scale (GIDS) based on two large German-speaking mixed-sex samples, and assess sex and age effects.

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Background: Internet-based cognitive behavioral therapy for insomnia (iCBT-I) provides flexibility but requires significant time and includes potentially challenging components such as sleep restriction therapy. This raises questions about its incremental effectiveness compared to less demanding minimal interventions such as sleep hygiene psychoeducation.

Objective: This study aimed to assess the incremental efficacy of self-guided iCBT-I with optional on-demand feedback for university students with insomnia compared to a single session of digital psychoeducation on sleep hygiene.

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Mental health disparities have been reported among sexual minority individuals; minority stress theory posits that such disparities are a result of stigma and discrimination. We estimated the prevalence of mental disorders across sexual orientation groups among first-year college students and whether differences across sexual orientation groups varied by gender and country-level LGBTQ+ (lesbian, gay, bisexual, transgender, queer) social acceptance. Using data (N = 53,175; 13 countries) from the World Mental Health Surveys International College Surveys, we performed multilevel logistic regressions to estimate the associations between sexual orientation (i.

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Background: Body dysmorphic disorder (BDD) is particularly prevalent yet highly understudied and undertreated in adolescence. This study evaluates the efficacy of an internet-based, therapist-guided cognitive behavioral therapy (CBT) for adolescents and young adults with BDD compared to supportive online therapy as an active control condition.

Methods: In a single-blind, randomized controlled trial, N = 45 adolescents (aged 15-21 years) of all genders from German-speaking countries were assigned to 12 sessions of internet-based CBT (iCBT) or 12 weeks of supportive online therapy.

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New developments in machine learning-based analysis of speech can be hypothesized to facilitate the long-term monitoring of major depressive disorder (MDD) during and after treatment. To test this hypothesis, we collected 550 speech samples from telephone-based clinical interviews with 267 individuals in routine care. With this data, we trained and evaluated a machine learning system to identify the absence/presence of a MDD diagnosis (as assessed with the Structured Clinical Interview for DSM-IV) from paralinguistic speech characteristics.

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The college stage is marked by high prevalence of mental disorders, particularly anxiety, low mood, and substance abuse. Despite this, many affected students do not receive treatment, underscoring the need for preventive strategies. In respose, the CORE program, an internet-based intervention, was developed to enhance resilience and coping skills among college students.

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Research on internet-interventions for youth with post-traumatic stress symptoms (PTSS) is limited, despite promising results in adults. A non-randomised feasibility study of a therapist-guided trauma-focused internet- and mobile-based intervention (IMI) showed potential in reducing PTSS but revealed challenges with adherence and individual fit. Insights from qualitative studies can enhance intervention quality by addressing personal needs.

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Background: The prevalence of mental health problems among college students has increased over the past decade. Even when mental health services are available, many students still struggle to access these services. This systematic review and meta-analysis aimed to identify the rates at which students actively seek or consider using formal help and to determine the main reasons for not seeking help.

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Introduction: Negative effects of psychotherapy encompass unwanted events caused by the treatment. Evidence exists that cognitive behavioral therapy for insomnia (CBT-I) can lead to negative effects (e.g.

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Background: The college years are a developmentally sensitive period for mental disorder onset. Reliable epidemiological data are critical for informing public health responses. This study aimed to estimate prevalence and socio-demographic distributions of common DSM-5 mental disorders among first-year university students from 77 universities across 18 countries.

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Sleep Restriction Therapy (SRT) is a core component of cognitive behavioural therapy for insomnia (CBT-I). Yet, adherence to SRT can be a major challenge for patients. As this challenge is evident in conventional face-to-face therapy, it raises the question of adherence to SRT in internet-delivered therapy.

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Article Synopsis
  • The study aimed to evaluate a guided internet- and smartphone-based gratitude intervention’s effectiveness in reducing repetitive negative thinking among adults, focusing on cognitive, emotional, and behavioral aspects of gratitude.
  • Participants (200 adults) were randomly assigned to either receive the gratitude intervention over four sessions or join a control waiting list, with their repetitive negative thinking assessed at three months, and additional evaluations at six weeks and six months.
  • Results showed that those who completed the gratitude intervention reported significantly lower levels of repetitive negative thinking and improvements in depression and anxiety symptoms, suggesting that gratitude-focused interventions could be a beneficial approach for managing these issues.
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Background: Psychological interventions are increasingly discussed as a method to prevent major depressive disorder (MDD) in adults who already experience subthreshold depressive symptoms. In this individual participant data meta-analysis, we quantify the effect of preventive interventions against control on MDD onset in this population, and explore effect modifiers.

Methods: In this systematic review and individual participant data meta-analysis, we screened full-texts of eligible studies within the Metapsy research domain for articles on psychological interventions for depression, from database inception to May 1, 2023, published in English, German, Spanish, and Dutch.

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Cognitive behavioural therapy for insomnia (CBTI) is recommended as first-line treatment for insomnia. CBT-I is a multi-component intervention comprising psychoeducation, sleep restriction, stimulus control, cognitive, and relaxation therapy. The relative efficacy of its components has yet to be investigated with state-of-the-art meta-analytic methods.

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Article Synopsis
  • - The study investigates the cost-effectiveness of a digital stress management intervention for employees versus a waitlist control group over six months, focusing on health costs and productivity losses.
  • - Results indicate that the intervention is likely to be cost-effective from both societal and employer perspectives, with a high probability of being dominant and providing a positive return on investment.
  • - Overall, the findings suggest that digital stress management programs not only improve employee wellbeing but also offer economic benefits, making them a worthwhile investment for employers.
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This systematic review aimed to synthesize evidence on predictors and moderators of treatment outcomes in internet- and mobile-based interventions (IMIs) for depression, informing personalized care. A systematic search across PubMed, PsycInfo, and Cochrane yielded 33,002 results. Two reviewers independently performed screening, data extraction, risk of bias assessment, and methodological quality evaluation.

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The implementation trial BESTFORCAN aims to evaluate the dissemination of Trauma-Focused Behavioural Therapy (TF-CBT) for children and adolescents in Germany with posttraumatic stress symptoms (PTSS) after child abuse and neglect (CAN) with a focus on supervision. This update to the study protocol outlines changes made due to practical reasons in the course of the ongoing trial while maintaining methodological quality. The amendments to the original study protocol comprise (1) a more refined operationalisation of the primary outcome sufficiently adherent TF-CBT therapy (SATT), (2) changes in the study sites and (3) additional inclusion of one post-gradual psychotherapy training institute.

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Many youth with posttraumatic stress symptoms (PTSS) do not receive evidence-based care. Internet- and Mobile-Based Interventions (IMIs) comprising evidence-based trauma-focused components can address this gap, but research is scarce. Thus, we investigated the feasibility of a trauma-focused IMI for youth with PTSS.

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Introduction: Limited research exists on intervention efficacy for comorbid subclinical anxiety and depressive disorders, despite their common co-occurrence. Internet- and mobile-based interventions (IMIs) are promising to reach individuals facing subclinical symptoms.

Objective: This study aimed to evaluate the efficacy of a transdiagnostic and self-tailored IMI in reducing subclinical anxiety and depressive symptom severity with either individualized (IG-IMI) or automated (AG-IMI) guidance compared to a waitlist control group with care-as-usual access (WLC).

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