Childhood obesity treatment: telephone coaching is as good as usual care in maintaining weight loss - a randomized controlled trial.

There is a need for more flexible treatment strategies to help patients reach relevant treatment outcomes and adhere better to treatment. The aim of this study was to evaluate the long-term efficacy, in terms of patients' weight status, of replacing usual care (UC) physical visits with more frequent but shorter telephone coaching (TC) sessions as part of a structured childhood obesity treatment. In this controlled study, patients aged 5-14 years from the Södertälje outpatient clinic, Sweden were randomized to either UC or TC over an 18-month period after participating in an initial standard obesity treatment programme. The patients were followed for a mean of 3.7 years. In total, 37 children (UC, n = 18 and TC, n = 19) were included, with a mean (standard deviation, SD) age of 9.5 (2.6) years and a body mass index standard deviation score (BMI SDS) of 2.9 (0.7). The change in BMI SDS did not differ between the groups during the study (P = 0.8). Both groups had similar changes in BMI SDS 3.7 years after the first visit to the clinic, TC = - 0.42 and UC = 0.52 BMI SDS units (P = 0.6 between groups). There were no gender differences. Furthermore, the average time clinicians spent with each patient during the study did not differ between the groups (P = 0.5). No patients were lost to follow-up during the study. In conclusion, the use of TC may offer greater flexibility in the treatment of paediatric obesity as it was non-inferior for both treatment efficacy and the time spent on treatment by healthcare personnel.