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dc.contributor.authorUwatoko, Teruhisa
dc.contributor.authorLuo, Yan
dc.contributor.authorSakata, Masatsugu
dc.contributor.authorKobayashi, Daisuke
dc.contributor.authorSakagami, Yu
dc.contributor.authorTakemoto, Kazumi
dc.contributor.authorCollins, Linda M
dc.contributor.authorWatkins, Ed
dc.contributor.authorHollon, Steven D
dc.contributor.authorWason, James
dc.contributor.authorNoma, Hisashi
dc.contributor.authorHorikoshi, Masaru
dc.contributor.authorKawamura, Takashi
dc.contributor.authorIwami, Taku
dc.contributor.authorFurukawa, Toshi A
dc.date.accessioned2018-07-05T06:04:30Z
dc.date.available2018-07-05T06:04:30Z
dc.date.issued2018-07-04
dc.identifier.citationTrials. 2018 Jul 04;19(1):353
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/277814
dc.description.abstractAbstract Background Youth in general and college life in particular are characterized by new educational, vocational, and interpersonal challenges, opportunities, and substantial stress. It is estimated that 30–50% of university students meet criteria for some mental disorder, especially depression, in any given year. The university has traditionally provided many channels to promote students’ mental health, but until now only a minority have sought such help, possibly owing to lack of time and/or to stigma related to mental illness. Smartphone-delivered cognitive behavioral therapy (CBT) shows promise for its accessibility and effectiveness. However, its most effective components and for whom it is more (or less) effective are not known. Methods/design Based on the multiphase optimization strategy framework, this study is a parallel-group, multicenter, open, fully factorial trial examining five smartphone-delivered CBT components (self-monitoring, cognitive restructuring, behavioral activation, assertion training, and problem solving) among university students with elevated distress, defined as scoring 5 or more on the Patient Health Questionnaire-9 (PHQ-9). The primary outcome is change in PHQ-9 scores from baseline to week 8. We will estimate specific efficacy of the five components and their interactions through the mixed-effects repeated-measures analysis and propose the most effective and efficacious combinations of components. Effect modification by selected baseline characteristics will be examined in exploratory analyses. Discussion The highly efficient experimental design will allow identification of the most effective components and the most efficient combinations thereof among the five components of smartphone CBT for university students. Pragmatically, the findings will help make the most efficacious CBT package accessible to a large number of distressed university students at reduced cost; theoretically, they will shed light on the underlying mechanisms of CBT and help further advance CBT for depression. Trial registration UMIN, CTR-000031307 . Registered on February 14, 2018.
dc.titleHealthy Campus Trial: a multiphase optimization strategy (MOST) fully factorial trial to optimize the smartphone cognitive behavioral therapy (CBT) app for mental health promotion among university students: study protocol for a randomized controlled trial
dc.typeJournal Article
dc.date.updated2018-07-05T06:04:28Z
dc.language.rfc3066en
dc.rights.holderThe Author(s).
dc.identifier.doi10.17863/CAM.25155
rioxxterms.versionofrecord10.1186/s13063-018-2719-z


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