Childhood Obesity Prevention: What's the Evidence?

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Presented as part of a Canadian Institutes of Health funded Knowledge Translation Supplement grant (KTB-112487) (1 of 8 webinars). Recorded May 23, 2012.

Presented as part of a Canadian Institutes of Health funded Knowledge Translation Supplement grant (KTB-112487) (1 of 8 webinars). Recorded May 23, 2012.

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  • 1. This webinar has been made possible with support from the Canadian Institutes of Health Research Welcome! Childhood Obesity Prevention:What’s the evidence? You will be placed on hold until the webinar begins.The webinar will begin shortly, please remain on the line.
  • 2. What’s the evidence? Waters, E., de Silva-Sanigorski, A., Hall, B.J., Brown, T., Campbell, K.J., Gao, Y., Armstrong, R., Prosser, L., & Summerbell, C.D. (2011). Interventions for preventing obesity in children. Cochrane Database of Systematic Reviews, 2011(12): Art. No.: CD001871 http://health-evidence.ca/articles/show/15329
  • 3. Housekeeping Connection issues  Recommend you use a wired Internet connection rather than wireless, to help prevent connection challenges  Please contact the WebEx 24/7 help line: 1-866-229-3239
  • 4. Participant Side Panel in WebExHousekeeping Hand icon How to post comments/questions Mic request during the webinar  To write in CHAT or Q&A Chat • Address questions to all panelists • Raise hand using the ‘hand’ icon (indicated on the right)  To talk: Q&A • If have a head set, you can ask to be passed the mic (mic request icon on right)
  • 5. This webinar has been made possible with support from the Canadian Institutes of Health Research Welcome! Childhood Obesity Prevention:What’s the evidence?
  • 6. The Health Evidence Team Kara DeCorby Heather Husson Administrative Director Project ManagerMaureen DobbinsScientific DirectorTel: 905 525-9140 ext 22481E-mail: dobbinsm@mcmaster.ca Lori Greco Robyn Traynor Lyndsey McRae Knowledge Broker Research Coordinator Research Assistant
  • 7. What is www.health-evidence.ca? Evidence inform Decision Making
  • 8. Why use www.health-evidence.ca? 1. Saves you time 2. Relevant & current evidence 3. Transparent process 4. Supports for EIDM available 5. Easy to use
  • 9. Knowledge Translation Supplement Project CIHR-funded KTB-112487
  • 10. Review Waters, E., de Silva-Sanigorski, A., Hall, B.J., Brown, T., Campbell, K.J., Gao, Y., Armstrong, R., Prosser, L., & Summerbell, C.D. (2011). Interventions for preventing obesity in children. Cochrane Database of Systematic Reviews, 2011(12): Art. No.: CD001871
  • 11. Questions?
  • 12. Summary Statement:Waters (2011) P 0-18 years I community, school, home, day care, preschool – promoting healthy eating, physical activity, social support C usual care O primary outcome – BMIQuality Rating 9 (strong)
  • 13. Overall ConsiderationsFavorable impact observed for BMI: 6-12 years only physical activity/nutrition interventions combined in education setting alone of short or long durationResults consistent across research designs
  • 14. General ImplicationsPublic health should promote/support/implement: strategies to prevent obesity among 6-12 year olds in education setting focused on healthy eating and physical activity of various durations different strategies are needed for young children and adolescents Long term impact remains unclear
  • 15. What’s the evidence Overall BMI -0.15 (95% CI -0.21, -0.09) 6-12 years -0.15 (95% CI -0.23, -0.08) Not statistically significant 0-5 or 13-18
  • 16. Overall Meta Analysis ResultsSubgroup: 0-5 years
  • 17. Overall Meta Analysis ResultsSubgroup: 6-12 years
  • 18. Overall Meta Analysis ResultsSubgroup: 13-18 years
  • 19. Implications for practice and policy Support obesity prevention in education settings Continue to investigate strategies for other age groups
  • 20. Intervention Type Combined physical activity and nutrition interventions -0.18 (95% CI -0.27, -0.09) Physical activity alone -0.11 (95% CI - -0.19,-0.02) Nutrition alone (not significant)
  • 21. Implications for practice and policy Support interventions to change physical activity and healthy eating behaviours in 6-12 years Environment and culture
  • 22. Intervention Setting Education setting only -0.14 (95% CI -0.21, -0.08) Education + other settings, or non-ed settings only not effective Sig effect in non-education settings for <5 years
  • 23. Implications for practice and policy Curriculum development More physical activity sessions Nutritional quality of food Training and capacity development for teachers and staff Parents of young children
  • 24. Intervention length Programs < than or > than 12 months have similar positive effect
  • 25. Implications for practice and policy Tailor program length to needs of education setting
  • 26. Research Designs Randomization not a factor Innovative ideas for 0-5 and 13-18 need to be developed and evaluated
  • 27. Overall ConsiderationsFavorable impact observed for BMI: 6-12 years only physical activity/nutrition interventions combined in education setting alone of short or long durationResults consistent across research designs
  • 28. General ImplicationsPublic health should promote/support/implement: strategies to prevent obesity among 6-12 year olds in education setting focused on healthy eating and physical activity of various durations different strategies are needed for young children and adolescents Long term impact remains unclear
  • 29. Questions?
  • 30. Posting BoardPlease continue to discuss this topic and other topics on our posting board. http://forum.health-evidence.ca/Login with your health-evidence username and password or register if you aren’t a member yet.