New digital tool provides effective support for the treatment of pediatric obesity

A mobile app that shows a child's weight development in real-time for children with obesity provides greater weight loss compared to conventional care. The fact that both families and healthcare professionals can follow the same data facilitates individualized extra support when needed. This is shown by a study from Karolinska Institutet in Sweden published in the International Journal of Obesity.

The care of children and adolescents with obesity needs to be improved. International studies show that frequent follow-up visits, every two weeks, are most effective in maintaining behavioral changes.

"But it's not feasible, neither for the families nor the healthcare system. We, therefore, need to find new ways to provide more support," says Emilia Hagman, a researcher at the Department of Clinical Science, Intervention and Technology who in a study evaluated a new digital tool, a mobile app from the company Evira.

The study is a so-called pragmatic study, which means that the participants were not randomized, but rather, the treatments were evaluated in a real-life clinical setting.

Results improved by 100%

100 children who attended the Martina Children's hospital (Martina Centrum för Vikthälsa) in Stockholm were able to try the digi-physical treatment concept over a period of one year. The app is connected to a scale that has no numbers on it, which the child would stand on each day. In the app, the family sees their child's weight development as a curve that should be within a green weight target development curve. The target curve was determined individually and updated during physical visits every three months.

Healthcare professionals had access to the same data. Via a chat function, healthcare personnel could offer extra support, or the parents could ask for extra support if needed.

To ensure efficacy, these children were compared with 300 children from the Swedish childhood obesity treatment register, BORIS, who were receiving usual care at other clinics in the country during the same period and were selected randomly but who were matched in terms of age and sex.

The families who used the app achieved twice as good results compared to the control group, i.e. greater weight loss.

Worked well for adolescents

This is the first app whereby healthcare professionals, and the family can monitor the child's weight development in real-time. It was particularly gratifying that it worked so well for adolescents, who we otherwise have not been able to reach with behavior-changing therapy. The app provides more support through continuous feedback, which creates clarity with regard to the treatment. We could not note any side effects associated with the treatment, for example in the form of eating disorders."

Pernilla Danielsson Liljeqvist, study's last author, researcher, Department of Clinical Science, Intervention and Technology at Karolinska Institutet

One limitation of the study is that it was carried out in only one clinic. There is also a lack of data as to how many physical visits the people in the control group had.

"We know that the pediatric obesity treatment in Sweden is focused on behavioral change and the control group's results are in line with BORIS' annual report and major international reviews," says Pernilla Danielsson Liljeqvist. "A calculation of the cost of the treatment was also not included. We must first know that it works."

To be tested at more clinics

Evira's mobile app is included in Vårdvalet (Reimbursed treatment) in Region Stockholm in Sweden from 1 June 2022, so it is going to be used in more clinics. The researchers are also planning an international study with several European countries.

The study was carried out in collaboration with the Martina Children's hospital. It was financed by Region Stockholm, Vinnova, Swelife and Medtech4Health, the Swedish Order of Freemasons Children's Foundation in Stockholm and Evira AB. Co-author Claude Kollin is the CEO of Martina Children's hospital. Co-authors Erik Marcus, Andreas Drangel and Love Marcus are employees and co-owners of Evira, and Claude Marcus is co-owner of Evira. Neither Erik Marcus, Andreas Drangel, Love Marcus nor Claude Marcus has influenced the evaluation of the results.