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       Welcome!
   Childhood Obesity
      Prevention:
What’s the evidence?
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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
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   Welcome!
 Childhood Obesity
    Prevention:
What’s the evidence?
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
What is www.health-evidence.ca?


                     Evidence
                          inform



              Decision Making
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
Knowledge Translation
 Supplement Project
    CIHR-funded KTB-112487
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
Questions?
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)
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
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
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
Overall Meta Analysis Results
Subgroup: 0-5 years
Overall Meta Analysis Results
Subgroup: 6-12 years
Overall Meta Analysis Results
Subgroup: 13-18 years
Implications for practice and policy
 Support obesity prevention in education settings
 Continue to investigate strategies for other age groups
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)
Implications for practice and policy
 Support interventions to change physical activity and
  healthy eating behaviours in 6-12 years

 Environment and culture
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
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
Intervention length
 Programs < than or > than 12 months have similar
  positive effect
Implications for practice and policy
 Tailor program length to needs of education setting
Research Designs
 Randomization not a factor

 Innovative ideas for 0-5 and 13-18 need to be
  developed and evaluated
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
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
Questions?
Posting Board
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Childhood Obesity Prevention: What's the Evidence?

  • 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 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. 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 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. 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
  • 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. 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. 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. 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 Results Subgroup: 0-5 years
  • 17. Overall Meta Analysis Results Subgroup: 6-12 years
  • 18. Overall Meta Analysis Results Subgroup: 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 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. 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
  • 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.