The role of knowledge in internet-based cognitive behavioural therapy for adolescent depression: Results from a randomised controlled study

Knowledge acquisition following internet-based cognitive behavioural therapy for loneliness - A secondary analysis of a randomised controlled trial

BACKGROUND AND OBJECTIVES

Knowledge about a condition and how to treat it is part of most cognitive behavioural therapies. This is particularly relevant for self-help treatments such as internet-based CBT, which is commonly delivered in the form of didactic materials. The role of knowledge acquisition in treatment outcomes is an understudied area. The present study sought to investigate knowledge acquisition as part of an ICBT trial targeting loneliness and discern its role in the outcome of treatment.

METHODS

We used secondary data from a randomised controlled trial of ICBT targeting loneliness with 73 participants. A knowledge test including certainty ratings was constructed and used to investigate whether knowledge increased for the treatment group in comparison to the control group, whether changes in knowledge predicted changes in loneliness during the treatment phase, and how the acquired knowledge related to outcomes at a two-year follow-up. Multiple linear regression models were used to analyse the data.

RESULTS

The treatment group had significantly higher knowledge scores compared to the waitlist group at posttreatment, both in terms of correct answers (Cohen's d = 0.73) and certainty-weighted sum scores (Cohen's d = 1.20). Acquired knowledge did not predict reductions in loneliness in the short-term, and neither loneliness ratings nor use of treatment techniques in the long-term.

LIMITATIONS

The sample size was relatively small, which limits the statistical inferences.

CONCLUSIONS

Knowledge of treatment relevant principles increase as part of the treatment in ICBT for loneliness. This increase was not related to other short- and long-term outcomes.

Increasing the accessibility to internet-based cognitive behavioural therapy for depression: A single-blind randomized controlled trial of condensed versus full-text versions

Background

Research shows that internet-based cognitive behavioural therapy (iCBT) is an effective treatment for depression. However, little is known about how the length of the text material in iCBT affects outcomes.

Objective

The aim of this study was to test whether a condensed iCBT version for depression would be non-inferior to the existing full-text version in reducing depressive symptoms at post-treatment. We also wanted to test non-inferiority for secondary outcomes and explore reading speed and ADHD symptoms as potential moderators.

Method

A single-blind randomized controlled trial was conducted (N = 267) comparing two versions of guided iCBT for depression; full-text (around 60,000 words) and condensed (around 30,000 words, with the option to listen to the text). Estimated between-group effect sizes and their confidence intervals for depression, anxiety and quality of life, were compared to a pre-determined non-inferiority margin (ES = 0.4). Moderation analyses of reading speed and ADHD symptoms were conducted.

Results

The condensed version of iCBT was non-inferior to the full-text version on post-treatment measures for depressive symptoms (95 % CI = -0.42-0.24), anxiety symptoms (95 % CI = -0.24-0.32), and quality of life (95 % CI = -0.09-0.49). Non-inferiority was inconclusive for depressive symptoms at the one-year follow-up (95 % CI = -0.60-0.47). There was no significant moderation effects of reading speed (p = 0.06) or ADHD symptoms (p = 0.11) on depressive symptoms.

Conclusion

These results indicate that a condensed version of iCBT for depression is as effective at treating depression as the full-text version. By shortening texts, iCBT may be made available to more people. Due to unequal dropout rates between the groups, these results are preliminary and need to be replicated.

Rapid Evidence Review of Digital Cognitive-Behavioral Therapy for Adolescents With Depression

PURPOSE

We conducted a rapid evidence review to explore the benefits and harms of digital cognitive-behavioral therapy (dCBT) and the barriers to and facilitators of implementing dCBT for adolescents.

METHODS

We searched MEDLINE, PsycINFO, CENTRAL through December 6, 2021, for controlled trials conducted in settings highly applicable to the United States. Additionally, we searched relevant systematic reviews for eligible studies. Results were summarized qualitatively.

RESULTS

We included 12 trials (n = 1,575) that examined the effects of nine dCBT programs. Overall, dCBT was slightly superior to comparators in improving depression symptoms immediately post-intervention, but not at a longer follow-up. The use of dCBT did not appear to result in an increased risk for suicidal attempts or ideation; however, the number of events was very small. Potential barriers to implementing/maintaining dCBT are challenges engaging/retaining patients, developing infrastructure, and training therapists to facilitate dCBT. Data on harms or unintended negative consequences were not reported in the included studies.

CONCLUSIONS

A limited body of evidence suggests that dCBT programs might outperform control interventions for reducing depressive symptoms immediately post-intervention, but not at a longer follow-up. The safety of dCBT programs for adolescents with depression is understudied.

Worry-specific versus self-tailored internet-based treatments for generalized anxiety disorder, with scheduled support or support on demand: A pilot factorial design trial

Studies suggest that internet-delivered cognitive behaviour therapy (ICBT) can be effective when treating generalized anxiety disorder (GAD). This pilot factorial design study examined the effects of two types of ICBT (worry-specific and self-tailored treatment), and two support types (scheduled weekly support and support on demand), on measures of worry, anxiety, and depressive symptoms. Participants (N = 85) were randomized into four treatment groups. Post-treatment measures were completed by 76.5% after eight weeks (n = 65). Intention to treat analysis showed significant improvements, with moderate to large within-group effects on the primary outcome measure, Penn State Worry Questionnaire (Cohen's d = 0.77-1.43). Minor to large effects on the secondary measures were found in all groups (Cohen's d = 0.13-1.66). No significant differences in outcome measures were found between the groups. Receiving scheduled support and self-tailored treatment was rated as more positive than receiving support on demand and the worry-specific program. A limitation is the low number of participants. The pilot results suggest that GAD can be treated with both worry-specific and self-tailored treatments, and that ICBT can be supported both with scheduled and support on demand.

Predictors, Moderators, and Mediators Associated With Treatment Outcome in Randomized Clinical Trials Among Adolescents With Depression: A Scoping Review

Importance

The application of precision medicine principles for the treatment of depressive disorders in adolescents requires an examination of the variables associated with depression outcomes in randomized clinical trials (RCTs).

Objective

To describe predictors, moderators, and mediators associated with outcomes in RCTs for the treatment of depressive disorders in adolescents.

Evidence Review

A scoping review of RCTs for the treatment of depression in adolescents was conducted. Databases searched included MEDLINE, Embase, APA PsycInfo, and CINAHL. Included publications tested predictors, moderators, and/or mediators associated with depression symptom outcomes (eg, symptom reduction, response, remission) in RCTs pertaining to the treatment of adolescents, ages 13 to 17 years. Predictors were defined as variables that were associated with depression outcomes, independent of treatment group. Moderators were defined as baseline variables that were associated with differential outcomes between treatment groups. Mediators were defined by a formal mediation analysis. In duplicate, variables were extracted and coded with respect to analysis type (univariable or multivariable), statistical significance, direction of effect size, reporting of a priori hypotheses, and adjustment for multiple comparisons. Aggregated results were summarized by variable domain and RCT sample.

Findings

Eighty-one articles reporting on variables associated with outcomes across 33 RCTs were identified, including studies of biological (10 RCTs), psychosocial (18 RCTs), and combined (4 RCTs) treatments as well as a service delivery model (1 RCT). Fifty-three variable domains were tested as baseline predictors of depression outcome, 41 as moderators, 19 as postbaseline predictors, and 5 as mediators. Variable domains that were reported as significant in at least 3 RCTs included age, sex/gender, baseline depression severity, early response to treatment, sleep changes, parent-child conflict, overall psychopathology, suicidal ideation, hopelessness, functional impairment, attendance at therapy sessions, and history of trauma. Two publications reported a priori hypotheses and adjustment for multiple comparisons, both finding that baseline depression severity and family conflict were associated with poorer outcomes.

Conclusions and Relevance

This review identified commonly researched variables requiring more scrutiny as well as underresearched variables to inform future study designs. Further efforts to discover predictors, moderators, and mediators associated with treatment response have great potential to optimize care for adolescents with depression.

Measuring Memory for Treatment Using Patient Conceptualizations of Clinical Vignettes: A Pilot Psychometric Study in the Context of Cognitive Therapy for Depression

Background

Patient memory for psychological treatment contents is a promising transdiagnostic mechanism of change, but there is little consensus concerning its measurement. We conducted a pilot psychometric investigation of the Conceptualization Task, a novel measure of patient memory for treatment.

Methods

Data were from a trial comparing cognitive therapy-as-usual to cognitive therapy plus the Memory Support Intervention (MSI) for adults with depression (N = 171). For the Conceptualization Task, patients read clinical vignettes and provided written responses to assess three facets of conceptualization: identifying contributing factors to psychopathology, making intervention recommendations, and providing a rationale for recommendations. Higher scores were given to responses reflecting accurate memory for the theoretical model and change strategies used in treatment.

Results

The Conceptualization Task showed excellent inter-rater reliability and sensitivity to change during treatment, but only fair test–retest reliability and insufficient internal consistency. Findings supported discriminant validity with measures of education, IQ, and general memory functioning, but not convergent validity with existing measures of patient memory for treatment. Criterion validity analyses showed that some aspects of the Conceptualization Task were associated with therapist use of memory support strategies from the MSI and treatment outcome. However, findings were mixed, effect sizes were small, and some results did not remain statistically significant after correcting for multiple comparisons.

Conclusions

Further refinement and testing is needed before the Conceptualization Task may be used to assess the patient memory for treatment contents.

Preference, Knowledge, and Attitudes of Parents Toward Cognitive Behavioral Therapy for Their Children in Riyadh, Saudi Arabia

Introduction: Cognitive behavioral therapy (CBT) for children and adolescents has shown efficacy in treating different psychiatric disorders. It has been added to multiple clinical guidelines as the first-line treatment. However, despite more studies of its efficacy, CBT is underutilized in clinical settings due to a lack of rigorous training programs and qualified CBT therapists. The limited knowledge of parents in this intervention and their negative attitudes toward it have been considered as possible reasons. Methods: This is a cross-sectional survey-based study among 464 Saudi parents living in Riyadh city. We aimed to evaluate the preference, knowledge, and attitudes of Saudi parents toward CBT for their children. We compared the difference in the level of knowledge and attitudes toward CBT in relation to the characteristics of parents. An online questionnaire that included 39 questions was carefully reconstructed from four validated scales, approved by an expert panel, and piloted. Participants were recruited to participate through online social media. Results: Saudi parents had average knowledge about CBT; however, they had positive attitudes toward the therapy itself and its role in treating the behavioral issues of children. Male participants showed better knowledge than female participants. Participants with higher education and those with high income had more favorable attitudes toward CBT than others. Conclusion: The knowledge of parents is considered inadequate and indicated the need for more awareness and perhaps mass education. In contrast, they maintained positive attitudes and were interested in evidence-based treatment, with more preference toward non-psychopharmacological interventions.

Online Indicated Preventive Mental Health Interventions for Youth: A Scoping Review

Objective: Between the ages of 12 and 25 the onset of mental disorders typically occurs, and the burden of mental health problems is greatest for this group. Indicated preventive interventions to target individuals with subclinical symptoms to prevent the transition to clinical levels of disorders have gained considerable traction. However, the threshold to seek help appears to be high even when help is needed. Online interventions could offer a solution, especially during the COVID-19 pandemic. This scoping review will present an overview of the recent research of indicated online preventive interventions for youth (12-25 years) experiencing the early stages of mental health complaints with the aim of identifying the nature and extent of the research evidence. Methods: The 5-stage framework by Arksey and O'Malley was used. Academic literature published from 2013 onwards in printed or electronic format was included from Scopus, PsychINFO, and Ovid MEDLINE(R) ALL. Results: The search yielded 11,122 results, with the final selection resulting in inclusion of 30 articles for this review. In total, the articles included 4,950 participants. 26.7% of the selected articles focused on youth between 12 and 25 years. Of the articles 60% did not screen for, nor exclude participants with clinical levels of symptoms. Most studies used a common evidence-based therapy for the disorder-category targeted. More than half of the online interventions included some form of human support. Adherence levels ranged between 27.9 and 98%. The results indicate general effectiveness, usability and acceptability of online indicated preventive interventions. The most commonly used approach was CBT (n = 12 studies). Studies varied in their size, rigor of study, effectiveness and outcome measures. Online interventions with a combination of clinical and peer moderation (n = 3 studies) appear to result in the most stable and highest effect sizes. Conclusion: Online indicated preventive mental health interventions for youth with emerging mental health issues show promise in reducing various mental health complaints, and increasing positive mental health indicators such as well-being and resilience. Additionally, high levels of usability and acceptability were found. However, the included studies show important methodological shortcomings. Also, the research has mainly focused on specific diagnostic categories, meaning there is a lack of transdiagnostic approaches. Finally, clear definitions of- as well as instruments to measure- emerging or subclinical mental health symptoms in youth remain are missing.

Weekly Self-Ratings of Treatment Involvement and Their Relation to Symptom Reduction in Internet Cognitive Behavioral Therapy for Insomnia

Background

Treatment involvement, including involvement with written material as well as homework assignments, has previously been associated with better outcomes in cognitive behavioral therapy, but there is a lack of knowledge on which specific aspects of involvement that are the most promising for use as predictors of treatment effects.

Methods

The objective of this study was to use a battery of weekly self-rated questions regarding different aspects of participant involvement during 8 weeks of either guided internet cognitive behavioral therapy for insomnia (ICBT-i, n = 73), or an active internet-delivered control treatment also including homework (ICBT-ctrl, n = 75), to predict reductions in insomnia severity after treatment. The markers of involvement were single questions on amount of time spent on treatment, amount of text read, amount of subjective knowledge gained and index scores of homework quantity (based on ratings of how many times specific techniques were used) and homework quality (based on ratings of the understanding, used as intended, and helpfulness of each specific technique).

Results

While none of the markers predicted reductions in insomnia severity for participants in the ICBT-ctrl group, text read, subjective knowledge gain, and homework quality predicted larger reductions in insomnia severity for participants in ICBT-i. Amount of subjective knowledge gained was a particularly useful marker in the ICBT-i group, since weekly ratings from the first half of treatment sufficed to explain a rather large proportion of variance in insomnia severity post treatment (14%).

Conclusions

The results strengthen subjective knowledge gain as a candidate for use as a predictor of treatment effects in ICBT-i.

Knowledge gain and usage of knowledge learned during internet-based CBT treatment for adolescent depression - a qualitative study

BACKGROUND

The role of explicit learning of treatment content in internet-based cognitive-behavioural treatment (ICBT) is an emerging field of research. The objective of this study was to explore clients experiences of their ICBT treatment for depression with a focus on knowledge gain and usage of knowledge learned during treatment.

METHODS

A strategic sample of ten adolescents, aged between 15 and 19 years, who had received ICBT for major depression within a clinical controlled trial were recruited for the study. Semi-structured interviews were conducted 6 months following trial completion. Data were transcribed and analysed using thematic analysis. The participants had a general adherence rate of 6-8 opened modules out of 8 possible.

RESULTS

Two main themes were identified; "Active agents of CBT" and "Passive agents of CBT", with each theme consisting of three and two sub-themes. Active agents of CBT reflect a tendency to specifically remember and actively apply specific CBT principles in present life situations. Passive agents of CBT reflect a tendency to remember CBT treatment principles vaguely and express a passive or reactive usage of learned therapy content.

CONCLUSION

The findings suggest that young clients can remember and apply CBT principles 6 months after their treatment. However, while experiencing benefits of treatment, clients recall and application of treatment strategies vary. The study emphasizes the importance of exploring client recall of CBT components and how valuable it is to explicitly remember contents of a treatment in order to improve and maintain improvement. Further studies on the role of knowledge and memory of ICBT for adolescent populations are warranted.

The Role of Learning Support and Chat-Sessions in Guided Internet-Based Cognitive Behavioral Therapy for Adolescents With Anxiety: A Factorial Design Study

BACKGROUND

Increased awareness of anxiety in adolescents emphasises the need for effective interventions. Internet-based cognitive behavioural therapy (ICBT) could be a resource-effective and evidence-based treatment option, but little is known about how to optimize ICBT or which factors boost outcomes. Recently, the role of knowledge in psychotherapy has received increased focus. Further, chat-sessions are of interest when trying to optimize ICBT for youths. This study aimed to evaluate the role of learning support and chat-sessions during ICBT for adolescent anxiety, using a factorial design.

METHOD

A total of 120 adolescents were randomised to one of four treatment groups, in a 2x2 design with two factors: with or without learning support and/or chat-sessions.

RESULTS

Anxiety and depressive symptoms were reduced (Beck Anxiety Inventory- BAI; Cohen's d =0.72; Beck Depression Inventory- BDI; d =0.97). There was a main effect of learning support on BAI (d =0.38), and learning support increased knowledge gain (d =0.42). There were no main effects or interactions related to the chat-sessions. Treatment effects were maintained at 6-months, but the added effect of learning support had by then vanished.

CONCLUSION

ICBT can be an effective alternative when treating adolescents with anxiety. Learning support could be of importance to enhance short-term treatment effects, and should be investigated further.

Online cognitive behavior therapy for adolescents with excessive worry: a multiple baseline design feasibility study

BACKGROUND

One in twenty adolescents experience excessive worry and evidence-based psychological therapies are not sufficiently widespread to reach most of those affected. In this multiple baseline evaluation, we assess the feasibility and preliminary efficacy of a scalable, online cognitive-behavioral intervention for adolescents with excessive worry (BIP worry).

METHODS

Thirteen adolescents (age 13-17) with excessive worry underwent the 10-week online BIP worry intervention. The treatment also included an online intervention for parents. Completion rates, treatment satisfaction, and adverse events were measures of feasibility. Clinical outcomes included worry severity, symptoms of other anxiety and depression, and general functioning. To control for time and spontaneous fluctuations in symptoms, adolescents were randomized to a 2-, 6-, or 10-week baseline phase prior to treatment. A short measure of worry severity was administered weekly during the baseline and treatment phases. Outcomes were assessed before the baseline-phase, at pre-treatment, post-treatment, and at 1- and 3-month follow-ups.

RESULTS

Twelve of 13 included adolescents, together with their parents, participated in BIP worry, with a mean completion rate of 9.8 of the 10 treatment modules. Adolescents reported an average of 4.4 exposures per week as homework during treatment. High levels of treatment adherence, credibility, and satisfaction, and no serious adverse events were reported. Therapists averaged 21 min per week communicating with each family. Linear mixed effects models indicated significant improvements in worry, anxiety, and general functioning from pre- to post-treatment, with these gains maintained at 1- and 3-months follow-up. Reductions in worry severity during treatment were significantly larger than during the baseline phase. The results from the multiple baseline evaluation suggested an association between the introduction of the BIP worry intervention and subsequent symptom change for some but not all adolescents.

CONCLUSIONS

BIP worry is a feasible and potentially effective treatment. As the treatment is scalable and involves limited therapist contact, it represents a low-cost method for treating adolescents with excessive worry and anxiety. Further investigation under randomized controlled trial (RCT) conditions is warranted.

Is Digital Treatment the Holy Grail? Literature Review on Computerized and Blended Treatment for Depressive Disorders in Youth

Computerized and blended treatments seem to be an attractive treatment for adolescents as an alternative to face-to-face treatment, but mental health professionals seem hesitant to use these treatment modalities. This review provides an overview of factors contributing to and withholding from using computerized or blended treatment in routine care. Three databases were searched with terms related to (1) adolescents, (2) depression, (3) computerized or blended, and (4) treatment. Of the 33 articles identified, 10 focused on unguided computerized treatments, six on guided, two on blended, two compared unguided, blended- and face-to-face treatment to no treatment, and eight studies on games. Further, two articles that were focused on an online monitoring tool and three on intervention characteristics or preferred modes of help-seeking. Evidence for effectiveness, adherence, drop-out, and forming therapeutic relations were suspected to be barriers, but are no reason to reject computerized or blended treatment. Improvement in mental health literacy and the possibility to tailor the intervention are facilitators. However, adolescents' intention to seek help, acceptability of computerized treatment, symptom severity, time spent by therapist, and other facilities are identified as barriers and they need to be taken into account when using computerized or blended interventions. Nevertheless, computerized and blended are promising treatments for depressed youth.

Internet-delivered psychological treatments: from innovation to implementation

Internet interventions, and in particular Internet-delivered cognitive behaviour therapy (ICBT), have existed for at least 20 years. Here we review the treatment approach and the evidence base, arguing that ICBT can be viewed as a vehicle for innovation. ICBT has been developed and tested for several psychiatric and somatic conditions, and direct comparative studies suggest that therapist-guided ICBT is more effective than a waiting list for anxiety disorders and depression, and tends to be as effective as face-to-face CBT. Studies on the possible harmful effects of ICBT are also reviewed: a significant minority of people do experience negative effects, although rates of deterioration appear similar to those reported for face-to-face treatments and lower than for control conditions. We further review studies on change mechanisms and conclude that few, if any, consistent moderators and mediators of change have been identified. A recent trend to focus on knowledge acquisition is considered, and a discussion on the possibilities and hurdles of implementing ICBT is presented. The latter includes findings suggesting that attitudes toward ICBT may not be as positive as when using modern information technology as an adjunct to face-to-face therapy (i.e., blended treatment). Finally, we discuss future directions, including the role played by technology and machine learning, blended treatment, adaptation of treatment for minorities and non-Western settings, other therapeutic approaches than ICBT (including Internet-delivered psychodynamic and interpersonal psychotherapy as well as acceptance and commitment therapy), emerging regulations, and the importance of reporting failed trials.