Anna Ek1, Kathryn Lewis Chamberlain2, Kimmo Sorjonen3, Ulf Hammar4,5, Mahnoush Etminan Malek6,7, Pernilla Sandvik8,9, Maria Somaraki9, Jonna Nyman7, Louise Lindberg8, Karin Nordin8, Jan Ejderhamn7, Philip A Fisher2,10, Patricia Chamberlain2, Claude Marcus8, Paulina Nowicka8,9. 1. Division of Pediatrics, Department of Clinical Science, Intervention, and Technology, anna.ek@ki.se. 2. Oregon Social Learning Center, Eugene, Oregon. 3. Division of Psychology, Department of Clinical Neuroscience. 4. Department of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Solna, Sweden. 5. Section of Molecular Epidemiology, Departments of Medical Sciences and. 6. Department of Public Health Sciences, and. 7. Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden. 8. Division of Pediatrics, Department of Clinical Science, Intervention, and Technology. 9. Food Studies, Nutrition, and Dietetics, Uppsala University, Uppsala, Sweden; and. 10. Department of Psychology, University of Oregon, Eugene, Oregon.
Abstract
BACKGROUND AND OBJECTIVES: Early obesity treatment seems to be the most effective, but few treatments exist. In this study, we examine the effectiveness of a parent-only treatment program with and without booster sessions (Booster or No Booster) focusing on parenting practices and standard treatment (ST). METHODS: Families of children 4 to 6 years of age with obesity were recruited from 68 child care centers in Stockholm County and randomly assigned to a parent-only program (10 weeks) with or without boosters (9 months) or to ST. Treatment effects on primary outcomes (BMI z score) and secondary outcomes (BMI and waist circumference) during a 12-month period were examined with linear mixed models. The influence of sociodemographic factors was examined by 3-way interactions. The clinically significant change in BMI z score (-0.5) was assessed with risk ratios. RESULTS: A total of 174 children (mean age: 5.3 years [SD = 0.8]; BMI z score: 3.0 [SD = 0.6], 56% girls) and their parents (60% foreign background; 39% university degree) were included in the analysis (Booster, n = 44; No Booster, n = 43; ST, n = 87). After 12 months, children in the parent-only treatment had a greater reduction in their BMI z score (0.30; 95% confidence interval [CI]: -0.45 to -0.15) compared with ST (0.07; 95% CI: -0.19 to 0.05). Comparing all 3 groups, improvements in weight status were only seen for the Booster group (-0.54; 95% CI: -0.77 to -0.30). The Booster group was 4.8 times (95% CI: 2.4 to 9.6) more likely to reach a clinically significant reduction of ≥0.5 of the BMI z score compared with ST. CONCLUSION: A parent-only treatment with boosters outperformed standard care for obesity in preschoolers.
BACKGROUND AND OBJECTIVES: Early obesity treatment seems to be the most effective, but few treatments exist. In this study, we examine the effectiveness of a parent-only treatment program with and without booster sessions (Booster or No Booster) focusing on parenting practices and standard treatment (ST). METHODS: Families of children 4 to 6 years of age with obesity were recruited from 68 child care centers in Stockholm County and randomly assigned to a parent-only program (10 weeks) with or without boosters (9 months) or to ST. Treatment effects on primary outcomes (BMI z score) and secondary outcomes (BMI and waist circumference) during a 12-month period were examined with linear mixed models. The influence of sociodemographic factors was examined by 3-way interactions. The clinically significant change in BMI z score (-0.5) was assessed with risk ratios. RESULTS: A total of 174 children (mean age: 5.3 years [SD = 0.8]; BMI z score: 3.0 [SD = 0.6], 56% girls) and their parents (60% foreign background; 39% university degree) were included in the analysis (Booster, n = 44; No Booster, n = 43; ST, n = 87). After 12 months, children in the parent-only treatment had a greater reduction in their BMI z score (0.30; 95% confidence interval [CI]: -0.45 to -0.15) compared with ST (0.07; 95% CI: -0.19 to 0.05). Comparing all 3 groups, improvements in weight status were only seen for the Booster group (-0.54; 95% CI: -0.77 to -0.30). The Booster group was 4.8 times (95% CI: 2.4 to 9.6) more likely to reach a clinically significant reduction of ≥0.5 of the BMI z score compared with ST. CONCLUSION: A parent-only treatment with boosters outperformed standard care for obesity in preschoolers.
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