Abstract
Objectives
To examine individual, family, and program characteristics associated with changes in anthropometric and cardiometabolic health indicators in children with overweight or obesity after participating in multidisciplinary obesity management for 12 months.
Methods
Participants included children 2–17 years old with overweight or obesity enrolled in the CANadian Pediatric Weight Management Registry (CANPWR). Multiple linear regression analyses were conducted to investigate the associations between individual, family, and program characteristics and changes in anthropometry (WHO BMI z-score) and cardiometabolic health indicators (systolic and diastolic blood pressure; fasting and 2-h glucose post-oral glucose tolerance test (OGTT); high density lipoprotein- (HDL) and non-HDL cholesterol and fasting triglycerides).
Results
BMI z-score data were available from 1065/1286 (82.8%) at 6-months post-baseline and 893/1286 (69.4%) at 12-months post-baseline. At 6-months, BMI z-score decreased relative to baseline (mean difference (MD) [95% confidence interval (CI)] = −0.08 [−0.10 to −0.06]; p < 0.001). BMI z-score (MD [95% CI] = −0.08 [−0.13 to −0.04); p = 0.001) and fasting triglycerides (MD [95% CI] = −0.07 [−0.13 to −0.02); p = 0.011) decreased at 12 months from baseline. Older age at baseline (estimated β = 0.025; 95% CI [0.006, 0.042], p = 0.007) and female sex (estimated β = 0.241; 95% CI [0.108, 0.329], p < 0.001) were associated with a worsened Δ BMI z-score at 12 months, while total hours with mental health provider (estimated β = −0.015; 95% CI [−0.030, −0.001], p = 0.049) was associated with an improved Δ BMI z-score at 12 months. Hours with an exercise counselor (estimated β = 0.023; 95% CI [0.008, 0.039], p = 0.003) were associated with improved HDL, while hours with a registered dietitian (estimated β = −0.026; 95% CI [−0.051, −0.001], p = 0.044) were associated with improved non-HDL cholesterol.
Conclusions
Male sex and hours spent with a mental health provider, exercise counselor, and registered dietitian were related to significant improvements in several anthropometric and cardiometabolic health indicators at 12 months post-baseline.
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Data availability
The datasets generated during and/or analyzed during the current study are not publicly available due to the risk of individual participant privacy being compromised, but a deidentified dataset are available from the corresponding author on reasonable request.
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Acknowledgements
The CANPWR study was funded by the Canadian Institutes of Health Research, the Population Health Research Institute (PHRI), McMaster Children’s Hospital, and McMaster University. PGM was funded by a CIHR Fellowship FRN 164649. JKH was supported with unrestricted research funds by the University of Toronto Mead Johnson Chair in Child Nutrition. GDCB was supported by an Alberta Health Services Chair in Obesity Research. The CANPWR investigators would like to acknowledge the research teams at each clinic and at the central coordinating site (PHRI) for their exceptional support and all of the children and their families for participating in this study.
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PGM wrote the first draft of this manuscript supported by the writing group comprised of GDCB, AB, JKH, JH, IZ, LT, and KMM. GDCB, AB, JKH, JH, IZ, LT, and KMM contributed to the study design, study conduct, data collection and interpretation of findings. KMM also oversaw the acquisition of funding and study design. PGM conducted the analysis, and LT contributed to the analytical review. All authors, including those in the consortium listed below (CB, JPC, SH, AML, LL, MT), edited the manuscript and approved the final version.
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PGM, AB, JPC, AL, MST, JH and LT have no competing interests. IZ is an advisory board member for Novo Nordisk, Dexcom, and Abbot Diabetes Care. JKH is a site investigator for studies sponsored by Levo Therapeutics, Canada, Rhythm Pharmaceuticals and Eli Lilly, and an advisory board member for Novo Nordisk. GDCB and LL are advisory board members for Novo Nordisk. KMM is an advisory board member for Novo Nordisk and Akcea Therapeutics, Canada.
Ethics approval and consent to participate
The CANPWR study was approved by the following Research Ethics Boards: Hamilton Integrated Research Ethics Board, Conjoint Health Research Ethics Board (Calgary, Alberta), Research Ethics Board Trillium Health Partners, Health Research Ethics Board—Health Panel (Edmonton, Alberta), Children’s Hospital of Eastern Ontario Research Ethics Board, The Hospital for Sick Children Research Ethics Board, University of British Columbia Clinical Research Ethics Board, CHU Sainte-Justine Research Ethics Board, McGill University Health Centre Research Ethics Board—Pediatrics. All methods in the study were performed in accordance with the relevant guidelines and regulations of each Research Ethics Board. Written informed consent was obtained from the child’s parent or guardian, and participants provided assent.
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McPhee, P.G., Ball, G.D.C., Buchholz, A. et al. Exploring the association between individual, family, and program characteristics and change in health outcomes 12 months after enrollment into the CANadian Pediatric Weight management Registry (CANPWR). Int J Obes 49, 109–117 (2025). https://doi.org/10.1038/s41366-024-01631-2
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DOI: https://doi.org/10.1038/s41366-024-01631-2