Use of a mobile lifestyle intervention application as a waitlist intervention for adolescents with obesity: single arm feasibility study (Preprint)
BACKGROUND Use of a mobile health tool as a waitlist intervention combined with in-person weight management clinic visits may increase participant engagement and be an effective treatment strategy for adolescent obesity. OBJECTIVE The aim of this study was to assess the effectiveness of and adolescent engagement with a mobile application-based lifestyle intervention program as a waitlist intervention prior to their engagement with a multidisciplinary weight management clinic METHODS This single-arm feasibility study recruited adolescents with obesity, aged 10-16 year old, to a waitlist intervention using a mobile app-based lifestyle intervention program with routine clinical care. Primary outcomes were adolescents’ engagement with the mobile application and BMI z-score at 6 months. Secondary outcomes included health behaviours, physical activity levels , quality of life and disordered eating behaviours. RESULTS We enrolled 40 adolescents with mean age of 13.8 ± 1.7 years and BMI z-score of 2.07 ± 0.30. Participants were ethnically diverse with 45% Chinese, 33% Malay, 15% Indians and 10% of other ethnicity. 83% of the participants had a household income level that was below the national median levels. 83% of the participants engaged with the mobile app-based lifestyle intervention program. There was no significant differences in the BMI z-score and disordered eating behaviours of the participants at 6 months. Participants had significant improvement in quality of life (P=0.044) and physical activity level (P=0.026) with reduction of total caloric intake (P=0.018) and fat percentage (P=0.018) at 6 months. CONCLUSIONS Use of a mobile app-based lifestyle intervention program combined with multidisciplinary clinical care is feasible strategy to provide obesity management services to a low-income and racially diverse Asian population and improves quality of life, physical activity levels and reduces fat percentage and total caloric intake. CLINICALTRIAL ClinicalTrials.gov NCT03561597