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Therapist-Guided Internet-Based Treatments for Loneliness: A Randomized Controlled Three-Arm Trial Comparing Cognitive Behavioral Therapy and Interpersonal Psychotherapy
Author(s) -
Anton Käll,
Malin Bäck,
Camilla Welin,
Hanna Åman,
Rasmus Bjerkander,
Matilda Wänman,
Tomas Lindegaard,
Matilda Berg,
Hajdi Moche,
Roz Shafran,
Gerhard Andersson
Publication year - 2021
Publication title -
psychotherapy and psychosomatics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.531
H-Index - 98
eISSN - 1423-0348
pISSN - 0033-3190
DOI - 10.1159/000516989
Subject(s) - loneliness , randomized controlled trial , psychology , psychological intervention , quality of life (healthcare) , clinical psychology , anxiety , interpersonal psychotherapy , cognitive behavioral therapy , mental health , ucla loneliness scale , interpersonal communication , cognitive therapy , psychiatry , cognition , psychotherapist , medicine , social psychology
Chronic loneliness has been linked to many adverse outcomes, including mental health problems. Psychological treatment of loneliness can be effective, but the evidence base is limited. Objective: To investigate the efficacy of 2 internet-based interventions based on cognitive behavioral therapy (ICBT) and interpersonal psychotherapy (IIPT) relative to a wait-list control group and each other. Methods: A total of 170 participants were recruited and randomized to either 9 weeks of ICBT ( n = 68), IIPT ( n = 68), or a wait-list condition ( n = 34). The primary outcome was loneliness, measured using the UCLA Loneliness Scale before, during, and after treatment. Secondary measures of psychiatric disorders and quality of life were administered before and after treatment. Follow-up was conducted 4 months after the treatment had ended. Primary outcome data were analyzed using growth curve modeling. Secondary outcomes were analyzed using robust regression models. The trial was preregistered (ClinicalTrials.gov ID: NCT03807154). Results: The ICBT condition had a significantly greater impact on loneliness compared to the wait-list and IIPT conditions. Effect sizes were moderate to large (Cohen d = 0.71) compared to the wait-list and moderate ( d = 0.53) compared to IIPT. The IIPT condition did not differ significantly from the wait-list. Both active treatments led to significant increases in quality of life. Only the ICBT group had significantly lower symptoms of depression and generalized anxiety compared to the wait-list group. Treatment gains were maintained but not improved at follow-up. Conclusions: ICBT can be an efficacious option for alleviating loneliness. The IIPT intervention was not as effective.

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