title: A randomized controlled trial of guided internet-delivered cognitive behaviour therapy for older adults with generalized anxiety.
abstract: This study aimed to establish the efficacy of guided Internet-delivered cognitive-behaviour therapy (ICBT) for older adults with generalized anxiety disorder (GAD) or subclinical GAD. Participants were randomized to receive seven modules of ICBT (n=24) or to a waiting list condition (WLC; n=22). Faster improvements in symptoms of anxiety and depression were observed for participants in the ICBT condition relative to the WLC, with large between-group effect sizes on the Generalized anxiety disorder-7 (d=.85) and the Patient health questionnaire (d=1.17) obtained at post-treatment. Further reduction in generalized anxiety symptoms was reported over the one-month follow-up. Treatment effects were replicated when control participants subsequently underwent treatment. Higher ratings of treatment credibility, but not expectancy, prior to ICBT predicted improvements over time. The results support the efficacy of ICBT as treatment for older adults with GAD.
authors.affiliation: Southport Psychology, 1150-10201 Southport Road S.W., Calgary, AB T2W 4X9, Canada; Department of Psychology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada. Electronic address: shannon@southportpsychology.com.
authors.forename: Shannon L
authors.initials: SL
authors.lastname: Jones
authors.affiliation: Department of Psychology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada.
authors.forename: Heather D
authors.initials: HD
authors.lastname: Hadjistavropoulos
authors.affiliation: Department of Psychology, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada.
authors.forename: Joelle N
authors.initials: JN
authors.lastname: Soucy
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001008:Anxiety Disorders / Q000628:therapy*; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D003866:Depressive Disorder / Q000628:therapy; D005260:Female; D006801:Humans; D020407:Internet; D008297:Male; D055118:Medication Adherence; D008875:Middle Aged; D013813:Therapy, Computer-Assisted / Q000379:methods; D016896:Treatment Outcome
keywords: Generalized anxiety disorder; Guided internet-delivered cognitive behaviour therapy; Multilevel mixed models; Older adults; Randomized controlled trial