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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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Childhood Obesity Prevention: What's the Evidence?

  1. 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. 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. 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. 4. Participant Side Panel in WebEx Housekeeping 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. 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. 6. The Health Evidence Team Kara DeCorby Heather Husson Administrative Director Project Manager Maureen Dobbins Scientific Director Tel: 905 525-9140 ext 22481 E-mail: dobbinsm@mcmaster.ca Lori Greco Robyn Traynor Lyndsey McRae Knowledge Broker Research Coordinator Research Assistant
  7. 7. What is www.health-evidence.ca? Evidence inform Decision Making
  8. 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. 9. Knowledge Translation Supplement Project CIHR-funded KTB-112487
  10. 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. 11. Questions?
  12. 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 – BMI Quality Rating 9 (strong)
  13. 13. Overall Considerations Favorable impact observed for BMI:  6-12 years only  physical activity/nutrition interventions combined  in education setting alone  of short or long duration Results consistent across research designs
  14. 14. General Implications Public 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. 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. 16. Overall Meta Analysis Results Subgroup: 0-5 years
  17. 17. Overall Meta Analysis Results Subgroup: 6-12 years
  18. 18. Overall Meta Analysis Results Subgroup: 13-18 years
  19. 19. Implications for practice and policy  Support obesity prevention in education settings  Continue to investigate strategies for other age groups
  20. 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. 21. Implications for practice and policy  Support interventions to change physical activity and healthy eating behaviours in 6-12 years  Environment and culture
  22. 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. 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. 24. Intervention length  Programs < than or > than 12 months have similar positive effect
  25. 25. Implications for practice and policy  Tailor program length to needs of education setting
  26. 26. Research Designs  Randomization not a factor  Innovative ideas for 0-5 and 13-18 need to be developed and evaluated
  27. 27. Overall Considerations Favorable impact observed for BMI:  6-12 years only  physical activity/nutrition interventions combined  in education setting alone  of short or long duration Results consistent across research designs
  28. 28. General Implications Public 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. 29. Questions?
  30. 30. Posting Board Please 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.

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