Limitations
The study had a few limitations. One limitation of the present study was that the baseline questionnaires were filled after allocation, which might have biased the participants’ responses. Future trials could address this by allocating participants to trial arms after baseline questionnaires are filled. Second, self-report as assessment of eligibility criteria could be complemented by using screening tools with cut-off scores to establish mental health problems. Third, outcome self-reporting in open label trials (i.e., those in which participants know their allocation) is subject to reporting bias. However, blinding participants in this case would be extremely hard due to the behavioral nature of the intervention. Fourth, future trials could benefit from 3–6 month follow-up assessment of qualitative themes, as well as mental health outcome measures. Finally, statistical analyses were of a very preliminary nature and need confirmation via a definitive trial complemented by an in-depth content analysis.