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Sundström, ChristopherORCID iD iconorcid.org/0000-0003-4237-7159
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Publications (10 of 11) Show all publications
Hadjistavropoulos, H. D., Peynenburg, V., Sapkota, R. P., Valli, E., Nugent, M., Keough, M. T., . . . Dear, B. F. (2025). Evaluation of additional resources and stories within therapist-assisted internet-delivered cognitive behaviour therapy for alcohol misuse. Internet Interventions, 39, Article ID 100809.
Open this publication in new window or tab >>Evaluation of additional resources and stories within therapist-assisted internet-delivered cognitive behaviour therapy for alcohol misuse
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2025 (English)In: Internet Interventions, ISSN 2214-7829, Vol. 39, article id 100809Article in journal (Refereed) Published
Abstract [en]

Background: Additional resources and stories are sometimes incorporated into Internet-delivered cognitive behaviour therapy (ICBT) for alcohol misuse to enhance treatment. Little is known, however, about how patients use and evaluate additional resources and stories, and how use and evaluation of additional resources and stories relates to satisfaction and outcomes.

Methods: We examined patient use and evaluation of 8 additional resources and 8 stories among 121 patients who endorsed significant alcohol misuse and were enrolled in a 6-lesson ICBT course for alcohol misuse enhanced with additional resources and stories. The additional resources addressed anger, assertiveness and communication, cannabis use, cognitive coping, grief, PTSD, sleep, and worry. Stories varied by gender, ethnicity, occupation, and severity of alcohol problems. Primary drinking outcomes included the Timeline Follow-Back (TLFB) and heavy drinking days (HDD). Diverse secondary outcomes (e.g., depression, anxiety, cravings, anger, satisfaction) were also assessed.

Results: Large within-group effects for TLFB and HDD were found. Large effects were also observed for depression and cravings, with high treatment satisfaction. 63 % of patients accessed at least one resource (M = 2.27 resources), with anger (35 %), cognitive coping (35 %), sleep (34 %) and worry (30 %) being the most used. When accessed, patients found resources informative and/or helpful to varying degrees (25–67 %). In terms of stories, 85 % of patients indicated they read the stories, and 89 % of those found them worthwhile; 65 % felt less alone and 55 % found they gave them skills to improve wellbeing. Increased use and positive ratings of additional resources were not significantly related to outcomes or satisfaction. However, positive ratings of stories were associated with confidence in managing symptoms and an interest in future treatment. Additionally, reading stories was associated with larger improvements on several secondary outcomes, including PTSD, anger, insomnia, and work and social adjustment.

Conclusions: The findings suggest that adding resources and stories to ICBT is acceptable and worthwhile. A significant number of patients reviewed these materials and found them informative and/or helpful, which suggests it is likely valuable to retain these resources for those in need. Reading stories and positive ratings of stories, rather than use and positive ratings of additional resources, was associated with increased satisfaction and some larger improvements on secondary outcomes. Further research is warranted to identify strategies that will more effectively engage patients with additional resources tailored to their specific needs.

National Category
Drug Abuse and Addiction Psychiatry Applied Psychology
Identifiers
urn:nbn:se:su:diva-241518 (URN)10.1016/j.invent.2025.100809 (DOI)001426890900001 ()2-s2.0-85217412626 (Scopus ID)
Available from: 2025-04-28 Created: 2025-04-28 Last updated: 2025-04-28Bibliographically approved
Sapkota, R. P., Lozinski, T., Wilhems, A., Nugent, M., Schaub, M. P., Keough, M. T., . . . Hadjistavropoulos, H. D. (2024). Internet-delivered therapy for alcohol misuse: engagement, satisfaction, and outcomes when patients select their preference for therapist- or self-guided treatment. Addiction science & clinical practice, 19, Article ID 30.
Open this publication in new window or tab >>Internet-delivered therapy for alcohol misuse: engagement, satisfaction, and outcomes when patients select their preference for therapist- or self-guided treatment
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2024 (English)In: Addiction science & clinical practice, ISSN 1940-0632, E-ISSN 1940-0640, Vol. 19, article id 30Article in journal (Refereed) Published
Abstract [en]

Background: Alcohol misuse is common and causes substantial harm. Internet-delivered cognitive behaviour therapy (ICBT) is effective in reducing alcohol misuse; however, the literature investigating how treatment outcomes are impacted by patients’ preferences for therapist- versus self-guided ICBT for alcohol misuse is sparse.

Methods: In this preference trial, 74 eligible patients (who reported ≥ 14 drinks in the previous week and obtained scores suggesting hazardous or harmful drinking) chose between enrolling in either therapist- or self-guided ICBT for alcohol misuse. We investigated whether those who chose therapist- versus self-guided ICBT differed in their (a) drinking outcomes—as measured by Timeline Follow-Back (TLFB) and heavy drinking days (HDD) at post-treatment and 3-month follow-up—and (b) post-treatment ICBT engagement and satisfaction.

Results: The majority (81.1%) of eligible patients chose therapist-guided ICBT. These patients reported higher psychotropic medication use, drinking difficulties, and anxiety symptoms. For both the therapist- and self-guided patients, a modified intention-to-treat analysis revealed large within-group treatment effects for TLFB (β =  − 2.64, SE 0.66; p < 0.001) and HDD (β =  − 0.34, SE 0.07; p < 0.001), with large pre-to-post-treatment Cohen’s effect sizes of d = 0.97 (95% CI [0.49, 1.45]) for TLFB and d = 1.19 (95% CI [0.69, 1.68]) for HDD. The interaction comparing the effects of therapist- to self-guided ICBT over time was not significant for TLFB (p = 0.34) or HDD (p = 0.06). With treatment, for both therapist- and self-guided patients, there was a significant improvement in drinking difficulties, cravings, and confidence with controlling cravings, as well as in anxiety, depression, and functional impairment. Further, the majority (75.7%) of patients completed five or more lessons, as well as reported overall satisfaction with the treatment (88.9%) and increased confidence in managing their symptoms (86.7%); these outcomes also did not differ between therapist- and self-guided patients.

Conclusions: The current study shows that ICBT for alcohol misuse is associated with reduced drinking and comorbid mental health difficulties over time, irrespective of whether patients chose to complete the course on their own or with therapist guidance.

Keywords
alcohol, substance use, treatment, internet-delivered cognitive behaviour therapy, preference trial
National Category
Drug Abuse and Addiction
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-228959 (URN)10.1186/s13722-024-00456-8 (DOI)001205944200001 ()38643242 (PubMedID)2-s2.0-85190823220 (Scopus ID)
Available from: 2024-05-14 Created: 2024-05-14 Last updated: 2025-02-11Bibliographically approved
Kraepelien, M., Sundström, C., Johansson, M. & Ivanova, E. (2023). Digital psychological self-care for problematic alcohol use: feasibility of a new clinical concept. BJPsych Open, 9(3), Article ID e91.
Open this publication in new window or tab >>Digital psychological self-care for problematic alcohol use: feasibility of a new clinical concept
2023 (English)In: BJPsych Open, E-ISSN 2056-4724, Vol. 9, no 3, article id e91Article in journal (Refereed) Published
Abstract [en]

Background: Digital interventions based on cognitive–behavioural therapy and relapse prevention can increase treatment access for people with problematic alcohol use, but for these interventions to be cost-effective, clinician workload needs to remain low while ensuring patient adherence and effects. Digital psychological self-care is the provision of a self-guided digital intervention within a structured care process.

Aims: To investigate the feasibility and preliminary effects of digital psychological self-care for reducing alcohol consumption.

Method: Thirty-six adults with problematic alcohol use received digital psychological self-care during 8 weeks, including telephone assessments as well as filling out self-rated questionnaires, before, directly after and 3 months after the intervention. Intervention adherence, usefulness, credibility and use of clinician time were assessed, along with preliminary effects on alcohol consumption. The study was prospectively registered as a clinical trial (NCT05037630).

Results: Most participants used the intervention daily or several times a week. The digital intervention was regarded as credible and useful, and there were no reported adverse effects. Around 1 h of clinician time per participant was spent on telephone assessments. At the 3-month follow-up, preliminary within-group effects on alcohol consumption were moderate (standardised drinks per week, Hedge's g = 0.70, 95% CI = 0.19–1.21; heavy drinking days, Hedge's g = 0.60, 95% CI = 0.09–1.11), reflecting a decrease from 23 to 13 drinks per week on average.

Conclusions: Digital psychological self-care for reducing alcohol consumption appears both feasible and preliminarily effective and should be further optimised and studied in larger trials.

Place, publisher, year, edition, pages
Cambridge University Press, 2023
Keywords
alcohol disorders, cognitive behavioural therapies, digital, intervention, feasibility study
National Category
Applied Psychology Drug Abuse and Addiction
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-220451 (URN)10.1192/bjo.2023.73 (DOI)000992220600001 ()37222099 (PubMedID)2-s2.0-85160954861 (Scopus ID)
Note

This work was supported by FORTE (grant number 2020-01160), Fredrik O Ingrid Thurings stiftelse (grant number 2019-00470) and the Swedish Ministry of Health and Social Affairs (grant number S2018/03855/FS).

Available from: 2023-08-30 Created: 2023-08-30 Last updated: 2025-02-11Bibliographically approved
Berman, A. H., Kraepelien, M., Sundström, C., Molander, O., Andersson, C., Andersson, G., . . . Topooco, N. (2023). Teaching digital mental health treatment in theory and practice: A proof-of-concept pilot and feasibility study. In: Abstracts from the 12th Swedish Congress on internet interventions (SWEsrii), Uppsala University, Sweden: . Paper presented at The 12th Swedish Congress on internet interventions (SWEsrii), Uppsala University, Sweden, 22–23 May, 2023. (pp. 6-7).
Open this publication in new window or tab >>Teaching digital mental health treatment in theory and practice: A proof-of-concept pilot and feasibility study
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2023 (English)In: Abstracts from the 12th Swedish Congress on internet interventions (SWEsrii), Uppsala University, Sweden, 2023, p. 6-7Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Objective: The labor market for mental health professionals increasingly requires competency in digital mental health treatment (DMHT). This presentation targets DMHT practitioners as course developers and teachers, describing proof-of-concept findings based on a) development of a remotely delivered DMHT course; and b) results from a qualitative evaluation of students’ experiences from the first course round.

Methods: The course syllabus was developed through two structured workshops, attended by 11 stakeholders with DMHT experience. For the qualitative evaluation, interviews with seven women participants in the first course round were analyzed according to an inductive, phenomenographic approach.

Results: The course development process established a 12-week syllabus covering historical development and evidence for DMHT and an 8-week DMHT clinical practicum treating students with common mental health problems. Examination was formulated as individual case reports encompassing reflections on a) the therapist and client roles; b) ethical aspects of DMHT; and c) future innovations for DMHT. The course is offered via a standard learning management system, with the practicum completed on a separate DMHT platform. The qualitative analysis of the first pilot course round, where students role-played therapists and clients, yielded six themes: overall course experience, treatment program and platform, therapist role, client role, supervision and the alliance.

Conclusions: This proof-of-concept procedure led to course establishment in two formats: as an ordinary elective course for advanced clinical psychology students, and as a stand-alone national course for health professionals with basic psychotherapy training. Following local adaptation, the course could be replicated at additional universities globally.

Keywords
digital mental health treatment, teaching, DMHT
National Category
Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-218874 (URN)
Conference
The 12th Swedish Congress on internet interventions (SWEsrii), Uppsala University, Sweden, 22–23 May, 2023.
Available from: 2023-06-26 Created: 2023-06-26 Last updated: 2023-06-26Bibliographically approved
Sundström, C., Forsström, D., Berman, A. H., Khadjesari, Z. & Sundqvist, K. (2023). What do we know about alcohol internet interventions aimed at employees?: A scoping review. Frontiers in Public Health, 11, Article ID 929782.
Open this publication in new window or tab >>What do we know about alcohol internet interventions aimed at employees?: A scoping review
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2023 (English)In: Frontiers in Public Health, E-ISSN 2296-2565, Vol. 11, article id 929782Article, review/survey (Refereed) Published
Abstract [en]

Background: Internet interventions are a promising avenue for delivering alcohol prevention to employees. The objective of this scoping review was to map all research on alcohol internet interventions aimed at employees regardless of design, to gain an overview of current evidence and identify potential knowledge gaps.

Methods: We conducted a literature search in three data bases (PsycInfo, PubMed, and Web of Science). Eligibility criteria were that (1) the study targeted employees age ≥18 years; (2) the intervention was delivered predominantly online; (3) the study focused specifically or in part on alcohol use; and (4) the study was published in English in a peer-reviewed academic journal. Two reviewers independently screened, reviewed, and extracted data.

Results: Twenty studies were included, of which 10 were randomized controlled trials, five were secondary analyses, three were feasibility trials, one was a cohort study and one described the rationale and development of an intervention. No qualitative studies were found. Randomized trials tended to show effects when interventions were compared to waitlists but not when more intensive interventions were compared to less intensive ones. We identified two design-related aspects where studies differed; (1) whether all applicants were included regardless of alcohol use level and (2) whether the intervention was explicitly framed as alcohol-focused or not. Significant recruitment problems were noted in several studies.

Conclusions: Alcohol internet interventions hold promise in delivering alcohol prevention to employees, but heterogeneity in study design and difficulties in recruitment complicate interpretation of findings.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2023
Keywords
alcohol, digital intervention, internet intervention, workplace, employee, scoping review
National Category
Drug Abuse and Addiction
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-215442 (URN)10.3389/fpubh.2023.929782 (DOI)000935009400001 ()36778564 (PubMedID)2-s2.0-85147753208 (Scopus ID)
Note

This work was funded by AFA Försäkring.

Available from: 2023-03-16 Created: 2023-03-16 Last updated: 2025-02-11Bibliographically approved
Sundström, C., Eék, N., Kraepelien, M., Kaldo, V. & Berman, A. H. (2023). What Predicts Treatment Adherence and Low-Risk Drinking?: An Exploratory Study of Internet Interventions for Alcohol Use Disorders. European Addiction Research, 29(1), 34-43
Open this publication in new window or tab >>What Predicts Treatment Adherence and Low-Risk Drinking?: An Exploratory Study of Internet Interventions for Alcohol Use Disorders
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2023 (English)In: European Addiction Research, ISSN 1022-6877, E-ISSN 1421-9891, Vol. 29, no 1, p. 34-43Article in journal (Refereed) Published
Abstract [en]

Introduction: Internet interventions for alcohol problems are effective, but not all participants are helped. Further, the importance of adherence has often been neglected in research on internet interventions for alcohol problems. Prediction analysis can help in prospectively assessing participants’ probability of success, and ideally, this information could be used to tailor internet interventions to individual needs. Methods: Data were obtained from a randomized controlled trial on internet interventions for alcohol use disorders. Twenty-nine candidate predictors were run in univariate logistic regressions with two dichotomous dependent outcomes: adherence (defined as completing at least 60% of the treatment modules) and low-risk drinking (defined as drinking within national public health guidelines) at two time points – immediately post-treatment and at the 6-month follow-up. Significant predictors were entered hierarchically into domain-specific logistic regressions. In the final models, predictors still showing significant effects were run in multiple logistic regressions. Results: One predictor significantly predicted adherence: treatment credibility (as in how logical the treatment is and how successful one perceives the treatment to be) assessed during the third week of the intervention. Four predictors significantly predicted low-risk drinking at the post-treatment follow-up: pre-treatment abstinence (i.e., not drinking during the 7 days before treatment started), being of the male gender, and two personality factors – a low degree of antagonism and a high degree of alexithymia. At the 6-month follow-up, pre-treatment abstinence was the only significant predictor. Conclusion: Adherence was not predictive of low-risk drinking. Personality variables may have predictive value and should be studied further. Those who abstain from alcohol during the week before treatment starts have a higher likelihood of achieving low-risk drinking than people who initially continue drinking.

Place, publisher, year, edition, pages
S. Karger, 2023
Keywords
internet interventions, alcohol, cognitive behaviour therapy
National Category
Drug Abuse and Addiction
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-213820 (URN)10.1159/000527868 (DOI)000897206600001 ()36481752 (PubMedID)2-s2.0-85145267048 (Scopus ID)
Note

Funding for this study was provided by the Swedish Research Council, grant numbers K2012-61X-22132–01-6 and. K2012-61P-22 131–01-6.

Available from: 2023-01-25 Created: 2023-01-25 Last updated: 2025-02-11Bibliographically approved
Sundström, C., Edmonds, M., Soucy, J. N., Titov, N., Dear, B. F. & Hadjistavropoulos, H. D. (2022). Alcohol and drug use among clients receiving internet-delivered cognitive behavior therapy for anxiety and depression in a routine care clinic: Demographics, use patterns, and prediction of treatment completion and outcomes. Internet Interventions, 27, Article ID 100490.
Open this publication in new window or tab >>Alcohol and drug use among clients receiving internet-delivered cognitive behavior therapy for anxiety and depression in a routine care clinic: Demographics, use patterns, and prediction of treatment completion and outcomes
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2022 (English)In: Internet Interventions, ISSN 2214-7829, Vol. 27, article id 100490Article in journal (Refereed) Published
Abstract [en]

Background: Research shows that alcohol and drug use among mental health clients is common and has the potential to negatively impact treatment outcomes. Internet-delivered cognitive behavior therapy (ICBT) as a treatment for anxiety and depression is on the rise, but little is known about the prevalence of alcohol and drug use among clients and how this use affects treatment completion and outcomes.

Objective: The objective of the current study was to explore the prevalence of alcohol and drug use among clients in ICBT for depression and anxiety, and to investigate the impact of alcohol and drug use on treatment completion and symptom outcomes.

Material and methods: Data was collected from 1155 clients who participated in two randomized ICBT trials for depression and anxiety, conducted in a routine care clinic. Thirty-five individuals reporting severe substance use when applying to the trials were excluded. Demographic variables, and alcohol and drug use were measured at screening, and measures of depression and anxiety were administered at pre- and post-treatment.

Results: Four out of five clients reported having used alcohol in the past year, while one in five reported having used drugs in the past year. Around a third of clients had reported either problematic alcohol use, drug problems, or both. The analyses showed that drug problems, and combined alcohol and drug problems were negatively associated with treatment completion, but neither alcohol nor drug use had an impact on depression and anxiety outcomes.

Conclusions: Alcohol and drug problems are likely to be present among a large proportion of patients using ICBT for anxiety and depression. This may not be a barrier to treatment benefit, at least when those with severe alcohol and drug problems have been excluded.

Keywords
Internet-delivered cognitive behavior therapy, depression, anxiety, alcohol, drugs, substance use
National Category
Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-201907 (URN)10.1016/j.invent.2021.100490 (DOI)000748432000002 ()34987979 (PubMedID)
Available from: 2022-02-08 Created: 2022-02-08 Last updated: 2023-01-04Bibliographically approved
Sundström, C., Peynenburg, V., Chadwick, C., Thiessen, D., Wilhems, A., Nugent, M., . . . Hadjistavropoulos, H. D. (2022). Optimizing internet-delivered cognitive behaviour therapy for alcohol misuse: a randomized factorial trial examining effects of a pre-treatment assessment interview and guidance. Addiction science & clinical practice, 17, Article ID 37.
Open this publication in new window or tab >>Optimizing internet-delivered cognitive behaviour therapy for alcohol misuse: a randomized factorial trial examining effects of a pre-treatment assessment interview and guidance
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2022 (English)In: Addiction science & clinical practice, ISSN 1940-0632, E-ISSN 1940-0640, Vol. 17, article id 37Article in journal (Refereed) Published
Abstract [en]

Background: Internet-delivered cognitive behavioral therapy (ICBT) for alcohol misuse has potential to radically improve access to evidence-based care, and there is a need to investigate ways to optimize its delivery in clinical settings. Guidance from a clinician has previously been shown to improve drinking outcomes in ICBT, and some studies suggest that pre-treatment assessments may contribute in initiating early change. The objective of this study was to investigate the added and combined effects of a pre-treatment assessment interview and guidance on the outcomes of ICBT for alcohol misuse delivered in an online therapy clinic.

Methods: A 2X2 factorial randomized controlled trial was conducted where participants received access to an 8-week ICBT program, and either a pre-treatment assessment interview (Factor 1), guidance (Factor 2), a combination of these, or neither of these. Participants were 270 individuals (66.8% female, mean age = 46.5) scoring 8 or more on the Alcohol Use Disorders Identification Test and consuming 14 standard drinks or more in the preceding week. Primary outcomes were number of drinks consumed and number of heavy drinking days during the preceding week, 3 months post-treatment.

Results: Large within-group effects were found in terms of alcohol reductions (dw ≥ 0.82, p < 0.001), but neither of the factors significantly improved drinking outcomes. Guidance was associated with greater adherence (i.e. completed modules).

Conclusions: Neither a pre-treatment assessment interview nor guidance from a clinician appears to improve drinking outcomes resulting from internet-delivered cognitive behaviour therapy for alcohol misuse when delivered in a routine online therapy clinic.

Keywords
alcohol, treatment, internet, cognitive behavior therapy, guidance, assessment reactivity
National Category
Psychology Drug Abuse and Addiction
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-208005 (URN)10.1186/s13722-022-00319-0 (DOI)000829164700001 ()35871010 (PubMedID)2-s2.0-85135094116 (Scopus ID)
Available from: 2022-08-16 Created: 2022-08-16 Last updated: 2025-02-11Bibliographically approved
Kraepelien, M., Hadjistavropoulos, H. D., Berman, A. H. & Sundström, C. (2021). Exploring client messages in a therapist-guided internet intervention for alcohol use disorders: A content analysis. Internet Interventions, 26, Article ID 100483.
Open this publication in new window or tab >>Exploring client messages in a therapist-guided internet intervention for alcohol use disorders: A content analysis
2021 (English)In: Internet Interventions, ISSN 2214-7829, Vol. 26, article id 100483Article in journal (Refereed) Published
Abstract [en]

Background: There is a growing interest in offering therapist-guided internet interventions for alcohol use disorders (AUD) in regular addiction services. Elucidating the therapeutic processes during these interventions may help improve clinical delivery. The aim of this paper was to investigate written messages from client to therapist in a therapist-guided internet intervention for AUD.

Methods: Data was extracted from the therapist-guided arm (n = 57) of a randomized trial of internet interventions for AUD. Qualitative content analysis was used to identify distinct categories of client behaviors in written messages to therapists. Coding was deductive (applying categories from past literature) as well as inductive (identifying new categories from the data). Subsequently, exploratory correlational and regression analyses were conducted to investigate whether identified client behaviors predicted module completion and drinking outcomes. Also, client questions posed in messages to therapists were categorized separately.

Results: Eleven distinct behavior categories were identified, of which the two most common were alliance (26.6% of total categorizations) and identifying patterns and problem behaviors (22.8%). Confrontational alliance rupture was the least common category (0.4%). One new behavior category was identified inductively - alcohol-related setback (4.1%). In the exploratory analyses, no categories consistently predicted module completion or drinking outcomes. Client questions were most commonly posed to improve understanding or use of program content or skills.

Discussion: The behavior categories, although not predictive of module completion or outcomes, may be of use for therapists, treatment developers and health care providers as a tool for understanding therapeutic processes in internet interventions for AUD.

Keywords
client messages, therapist-guidance, internet interventions, alcohol use disorder, content analysis
National Category
Psychology
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-199698 (URN)10.1016/j.invent.2021.100483 (DOI)000720547500003 ()34824984 (PubMedID)
Available from: 2021-12-13 Created: 2021-12-13 Last updated: 2022-01-21Bibliographically approved
McCall, H. C., Hadjistavropoulos, H. D. & Sundström, C. R. (2021). Exploring the Role of Persuasive Design in Unguided Internet-Delivered Cognitive Behavioral Therapy for Depression and Anxiety Among Adults: Systematic Review, Meta-analysis, and Meta-regression. Journal of Medical Internet Research, 23(4), Article ID e26939.
Open this publication in new window or tab >>Exploring the Role of Persuasive Design in Unguided Internet-Delivered Cognitive Behavioral Therapy for Depression and Anxiety Among Adults: Systematic Review, Meta-analysis, and Meta-regression
2021 (English)In: Journal of Medical Internet Research, E-ISSN 1438-8871, Vol. 23, no 4, article id e26939Article, review/survey (Refereed) Published
Abstract [en]

Background: Internet-delivered cognitive behavioral therapy (ICBT) is an effective treatment that can overcome barriers to mental health care. Various research groups have suggested that unguided ICBT (ie, ICBT without therapist support) and other eHealth interventions can be designed to enhance user engagement and thus outcomes. The persuasive systems design framework captures most design recommendations for eHealth interventions, but there is little empirical evidence that persuasive design is related to clinical outcomes in unguided ICBT.

Objective: This study aims to provide an updated meta-analysis of randomized controlled trials of unguided ICBT for depression and anxiety, describe the frequency with which various persuasive design principles are used in such interventions, and use meta-regression to explore whether a greater number of persuasive design elements predicts efficacy in unguided ICBT for depression and anxiety.

Methods: We conducted a systematic review of 5 databases to identify randomized controlled trials of unguided ICBT for depression and anxiety. We conducted separate random effects meta-analyses and separate meta-regressions for depression and anxiety interventions. Each meta-regression included 2 steps. The first step included, as a predictor, whether each intervention was transdiagnostic. For the meta-regression of ICBT for depression, the first step also included the type of control condition. The number of persuasive design principles identified for each intervention was added as a predictor in the second step to reveal the additional variance in effect sizes explained by persuasive design.

Results: Of the 4471 articles we identified in our search, 46 (1.03%) were eligible for inclusion in our analyses. Our meta-analyses showed effect sizes (Hedges g) ranging from 0.22 to 0.31 for depression interventions, depending on the measures taken to account for bias in the results. We found a mean effect size of 0.45 (95% CI 0.33-0.56) for anxiety interventions, with no evidence that the results were inflated by bias. Included interventions were identified as using between 1 and 13 persuasive design principles, with an average of 4.95 (SD 2.85). The meta-regressions showed that a greater number of persuasive design principles predicted greater efficacy in ICBT for depression (R-2 change=0.27; B=0.04; P=.02) but not anxiety (R-2 change=0.05; B=0.03; P=.17).

Conclusions: These findings show wide variability in the use of persuasive design in unguided ICBT for depression and anxiety and provide preliminary support for the proposition that more persuasively designed interventions are more efficacious, at least in the treatment of depression. Further research is needed to clarify the role of persuasive design in ICBT.

Keywords
ICBT, internet, depression, anxiety, persuasive design, eHealth
National Category
Psychiatry
Research subject
Psychology
Identifiers
urn:nbn:se:su:diva-193695 (URN)10.2196/26939 (DOI)000646931000004 ()33913811 (PubMedID)
Available from: 2021-06-13 Created: 2021-06-13 Last updated: 2024-01-17Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0003-4237-7159

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