5. Conclusions
IUD reduction
To our knowledge, this is the first health–economic evaluation of a telemedicine IUD reduction intervention. The webcam-based intervention leads to an improvement in Internet addiction symptoms using moderately increased financial resources or even savings due to avoiding further psychotherapy or treatment. To evaluate a long-term cost-effectiveness ratio, including standard care and/or a waiting group, using a longer-term comparative follow-up period could yield important additional information regarding the costs of implementing the intervention in standard care.