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AI-driven analyzes of open-ended responses to assess outcomes of internet-based cognitive behavioral therapy (ICBT) in adolescents with anxiety and depression comorbidity

Garcia, Danilo LU orcid ; Granjard, Alexandre ; Vanhée, Loïs ; Berg, Matilda ; Andersson, Gerhard ; Lasota, Marta LU and Sikström, Sverker LU orcid (2025) In Journal of Affective Disorders 381. p.659-668
Abstract

Objective: Although patients prefer describing their problems using words, mental health interventions are commonly evaluated using rating scales. Fortunately, recent advances in natural language processing (i.e., AI-methods) yield new opportunities to quantify people's own mental health descriptions. Our aim was to explore whether responses to open-ended questions, quantified using AI, provide additional value in measuring intervention outcomes compared to traditional rating scales. Method: Swedish adolescents (N = 44) who received Internet-based Cognitive Behavioral Therapy (ICBT) for eight weeks completed (pre/post) scales measuring anxiety and depression and three open-ended questions (related to depression, anxiety and general... (More)

Objective: Although patients prefer describing their problems using words, mental health interventions are commonly evaluated using rating scales. Fortunately, recent advances in natural language processing (i.e., AI-methods) yield new opportunities to quantify people's own mental health descriptions. Our aim was to explore whether responses to open-ended questions, quantified using AI, provide additional value in measuring intervention outcomes compared to traditional rating scales. Method: Swedish adolescents (N = 44) who received Internet-based Cognitive Behavioral Therapy (ICBT) for eight weeks completed (pre/post) scales measuring anxiety and depression and three open-ended questions (related to depression, anxiety and general mental health). The language responses were quantified using a large language model and quantitative methods to predict mental health as measured by rating scales, valence (i.e., words' positive/negative affectivity), and semantic content (i.e., meaning). Results: Similar to the rating scales, language measures revealed statistically significant health improvements between pre and post measures such as reduced depression and anxiety symptoms and an increase in the use of words conveying positive emotions and different meanings (e.g., pre-intervention: “anxious”, depressed; post-intervention: “happy”, “the future”). Notably, the health changes identified through semantic content measures remained statistically significant even after accounting for the changes captured by the rating scales. Conclusion: Language responses analyzed using AI-methods assessed outcomes with fewer items, demonstrating effectiveness and accuracy comparable to traditional rating scales. Additionally, this approach provided valuable insights into patients' well-being beyond mere symptom reduction, thus highlighting areas of improvement that rating scales often overlook. Since patients often prefer using natural language to express their mental health, this method could complement, and address comprehension issues associated fixed-item questionnaires.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Artificial intelligence, Internet-based cognitive behavioral therapy, Mental health interventions, Natural language, Outcome assessment
in
Journal of Affective Disorders
volume
381
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:105002678303
  • pmid:40187428
ISSN
0165-0327
DOI
10.1016/j.jad.2025.04.003
language
English
LU publication?
yes
id
e73cf388-fb76-4c0f-97e9-14495209fb41
date added to LUP
2025-08-06 11:51:12
date last changed
2025-08-07 02:43:32
@article{e73cf388-fb76-4c0f-97e9-14495209fb41,
  abstract     = {{<p>Objective: Although patients prefer describing their problems using words, mental health interventions are commonly evaluated using rating scales. Fortunately, recent advances in natural language processing (i.e., AI-methods) yield new opportunities to quantify people's own mental health descriptions. Our aim was to explore whether responses to open-ended questions, quantified using AI, provide additional value in measuring intervention outcomes compared to traditional rating scales. Method: Swedish adolescents (N = 44) who received Internet-based Cognitive Behavioral Therapy (ICBT) for eight weeks completed (pre/post) scales measuring anxiety and depression and three open-ended questions (related to depression, anxiety and general mental health). The language responses were quantified using a large language model and quantitative methods to predict mental health as measured by rating scales, valence (i.e., words' positive/negative affectivity), and semantic content (i.e., meaning). Results: Similar to the rating scales, language measures revealed statistically significant health improvements between pre and post measures such as reduced depression and anxiety symptoms and an increase in the use of words conveying positive emotions and different meanings (e.g., pre-intervention: “anxious”, depressed; post-intervention: “happy”, “the future”). Notably, the health changes identified through semantic content measures remained statistically significant even after accounting for the changes captured by the rating scales. Conclusion: Language responses analyzed using AI-methods assessed outcomes with fewer items, demonstrating effectiveness and accuracy comparable to traditional rating scales. Additionally, this approach provided valuable insights into patients' well-being beyond mere symptom reduction, thus highlighting areas of improvement that rating scales often overlook. Since patients often prefer using natural language to express their mental health, this method could complement, and address comprehension issues associated fixed-item questionnaires.</p>}},
  author       = {{Garcia, Danilo and Granjard, Alexandre and Vanhée, Loïs and Berg, Matilda and Andersson, Gerhard and Lasota, Marta and Sikström, Sverker}},
  issn         = {{0165-0327}},
  keywords     = {{Artificial intelligence; Internet-based cognitive behavioral therapy; Mental health interventions; Natural language; Outcome assessment}},
  language     = {{eng}},
  pages        = {{659--668}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Affective Disorders}},
  title        = {{AI-driven analyzes of open-ended responses to assess outcomes of internet-based cognitive behavioral therapy (ICBT) in adolescents with anxiety and depression comorbidity}},
  url          = {{http://dx.doi.org/10.1016/j.jad.2025.04.003}},
  doi          = {{10.1016/j.jad.2025.04.003}},
  volume       = {{381}},
  year         = {{2025}},
}