TY  - JOUR
A1  - Oehler, Caroline
A1  - Scholze, Katharina
A1  - Reich de Paredes, Hanna
A1  - Sander, Christian
A1  - Hegerl, Ulrich
T1  - Intervention use and symptom change with unguided internet-based cognitive behavioral therapy for depression during the COVID-19 pandemic: log data analysis of a convenience sample
T2  - JMIR mental health
N2  - Background: Internet- and mobile-based interventions are most efficacious in the treatment of depression when they involve some form of guidance, but providing guidance requires resources such as trained personnel, who might not always be available (eg, during lockdowns to contain the COVID-19 pandemic).
Objective: The current analysis focuses on changes in symptoms of depression in a guided sample of patients with depression who registered for an internet-based intervention, the iFightDepression tool, as well as the extent of intervention use, compared to an unguided sample. The objective is to further understand the effects of guidance and adherence on the intervention’s potential to induce symptom change.
Methods: Log data from two convenience samples in German routine care were used to assess symptom change after 6-9 weeks of intervention as well as minimal dose (finishing at least two workshops). A linear regression model with changes in Patient Health Questionnaire (PHQ-9) score as a dependent variable and guidance and minimal dose as well as their interaction as independent variables was specified.

Results: Data from 1423 people with symptoms of depression (n=940 unguided, 66.1%) were included in the current analysis. In the linear regression model predicting symptom change, a significant interaction of guidance and minimal dose revealed a specifically greater improvement for patients who received guidance and also worked with the intervention content (β=–1.75, t=–2.37, P=.02), while there was little difference in symptom change due to guidance in the group that did not use the intervention. In this model, the main effect of guidance was only marginally significant (β=–.53, t=–1.78, P=.08).
Conclusions: Guidance in internet-based interventions for depression is not only an important factor to facilitate adherence, but also seems to further improve results for patients adhering to the intervention compared to those who do the same but without guidance.
KW  - iCBT
KW  - internet-based cognitive behavioral therapy
KW  - internet-based treatment
KW  - internet- and mobile-based intervention
KW  - depression
KW  - guidance
KW  - unguided
KW  - COVID-19
Y1  - 2021
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62918
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-629188
SN  - 2368-7959
VL  - 8
IS  - 7, art. e28321
SP  - 1
EP  - 7
PB  - JMIR Publications
CY  - Toronto
ER  -