Cost-benefit Evaluation of a Transdiagnostic Psychological Treatment for Emotional Disorders in Primary Care

The aim of this study is to compare, in cost-effectiveness and cost-utility terms, a brief transdiagnostic cognitive-behavioural therapy in two different modes, individual and group, with the treatment usually administered in primary care (TAU). Participants between 18 and 65 years old and with, according to the pretreatment evaluation, mild to moderate emotional disorders will be randomly allocated to the three clusters. They will be assessed again immediately after treatment and 6 and 12 months later. The study hypotheses expect to find (H1) the individual treatment generally as effective as the group one, whereas (H2) the TAU will be the least effective. (H3) The group therapy is expected to get the best results in terms of cost-effectiveness and (H4) the TAU will get the worst cost-effectiveness results. Furthermore, (H5) it is expected to find these results across the follow-up assessments too.