Predictors and moderators of outcome of ICBT for loneliness with guidance or automated messages - A secondary analysis of a randomized controlled trial.

"appendix a supplementary data supplementary material image 1 data availability de-identified data and statistical codes supporting the findings of this study are available upon publication of the manuscript on osf ( https://osf io/7m5nr/ ). data availability de-identified data and statistical codes supporting the findings of this study are available upon publication of the manuscript on osf"

"Declaration of competing interest The authors declare no competing interests regarding the publication of this paper."

"Funding statement This study was funded by the 10.13039/501100001711Swiss National Science Foundation [grant number: 100019_192416]. The Funding body played no role in the study's design, data collection, or manuscript writing."

"This secondary analysis used data from a three-arm randomized controlled trial (RCT) (). Eligible participants were randomly assigned to ICBT with guidance, to ICBT with automated messages, or to a waitlist-control group. While intervention groups received immediate access to the intervention after randomization, the waitlist-control group got access 10 weeks after randomization. The RCT was preregistered on clinicaltrials.gov (NCT04655196, registration date: 07/12/2020), conducted in accordance with the declaration of Helsinki, and received approval by the Cantonal Ethics Committee Bern (CEC; ID: 202–01298). A study protocol was published (), and the efficacy of the ICBT will be reported elsewhere (). All subjects provided signed informed consent before participating in the trial."