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Canadian Journal of Public Health

, Volume 106, Issue 8, pp e514–e519 | Cite as

Ten-year trends in overweight/obesity among Ontario middle and high school students and their use in establishing baseline measures for government reduction targets

  • Kenneth R. AllisonEmail author
  • Hyacinth M. Irving
  • Edward M. Adlaf
  • Guy E. J. Faulkner
  • Angela Boak
  • Heather E. Manson
  • Hayley A. Hamilton
  • Bessie Ng
Quantitative Research
  • 2 Downloads

Abstract

OBJECTIVES: Public health concern about increasing levels of child/youth overweight and obesity has resulted in initiatives to address this issue. In 2012, the Ontario Ministry of Health and Long-Term Care (MOHLTC) established a target to reduce childhood obesity by 20% within five years. In this paper, we examine trends and establish baseline levels of overweight/obesity to assess the impacts of population-level interventions.

METHODS: We analyzed 10 years (2003–2013) of data accumulated from six cycles of the Ontario Student Drug Use and Health Survey using logistic regression to assess trends in the prevalence of overweight/obesity among middle and high school students. The 2013 data are used to begin monitoring progress toward achieving the MOHLTC target.

RESULTS: From 2003 through 2013, the prevalence of overweight/obesity among middle school students in the province remained stable overall and among all subgroups except 7th-grade females, who showed a significant linear decline. Among high school students, the prevalence of overweight/obesity showed a significant linear increase and an increase among 11th graders, females, and 10th- and 11th-grade females specifically. The prevalence remained stable but elevated among 9th- and 12th-grade females as well as among males in all grades. In 2013 (baseline for the MOHLTC target), 25.1% of students in grades 7–12 were overweight or obese, implying a presumed 2018 target of 20.1%.

CONCLUSION: Ten-year trends in overweight/obesity indicate stability among males and significant linear increases in some female subgroups. Also, baseline data (2013) will facilitate the monitoring of future interventions aimed at achieving the 2018 MOHLTC target.

Keywords

Obesity overweight trends students 

Résumé

OBJECTIFS : Le problème de santé publique que représentent les niveaux croissants de surpoids et d’obésité des enfants et des jeunes a donné lieu à des initiatives pour aborder la question. En 2012, le ministère de la Santé et des Soins de longue durée (MSSLD) de l’Ontario a établi une cible de réduction de l’obésité juvénile de 20 % dans un délai de cinq ans. Dans notre article, nous examinons les tendances et établissons les niveaux de référence du surpoids/de l’obésité afin d’évaluer les impacts d’interventions populationnelles.

MÉTHODE : Nous avons analysé par régression logistique 10 années (2003-2013) de données accumulées lors de six cycles du Sondage sur la consommation de drogues et la santé des élèves de l’Ontario afin d’évaluer les tendances de la prévalence du surpoids/de l’obésité chez les élèves des premier et deuxième cycles du secondaire. Nous utilisons les données de 2013 pour commencer à surveiller les progrès réalisés en vue d’atteindre la cible du MSSLD.

RÉSULTATS : De 2003 à 2013, la prévalence du surpoids/de l’obésité chez les élèves du premier cycle du secondaire dans la province est restée stable dans l’ensemble et dans tous les sous-groupes sauf celui des filles de 7e année, où elle a présenté une diminution linéaire significative. Chez les élèves du deuxième cycle du secondaire, la prévalence du surpoids/de l’obésité a présenté une augmentation linéaire significative, en particulier chez les élèves de 11e année, chez les filles et chez les filles de 10e et de 11e année. La prévalence est restée stable mais élevée chez les filles de 9e et de 12e année ainsi que chez les garçons de toutes les années. En 2013 (la base de référence pour la cible du MSSLD), 25,1% des élèves de la 7e à la 12e année étaient en surpoids ou obèses, ce qui implique une cible présumée de 20,1% en 2018.

CONCLUSION : Les tendances sur 10 ans du surpoids/de l’obésité indiquent une stabilité chez les garçons et une augmentation linéaire significative dans certains sous-groupes de filles. De plus, les données de référence (2013) faciliteront le contrôle des futures interventions visant à atteindre la cible du MSSLD en 2018.

Mots Clés

obésité surpoids tendances étudiants 

References

  1. 1.
    Public Health Agency of Canada, Canadian Institute for Health Information. Obesity in Canada: A Joint Report from the Public Health Agency of Canada and the Canadian Institute for Health Information. Ottawa, ON: Her Majesty the Queen in Right of Canada, 2011. Available at: https://www.secure.cihi.ca/free_products/Obesity_in_canada_2011_en.pdf (Accessed May 9, 2015).Google Scholar
  2. 2.
    Institute of Medicine. Bridging the Evidence Gap in Obesity Prevention: A Framework to Inform Decision Making. Washington, DC: The National Academies Press, 2010.Google Scholar
  3. 3.
    World Health Organization, Food and Agriculture Organization of the United Nations. Diet, Nutrition and the Prevention of Chronic Diseases: Report of a Joint WHO/FAO Expert Consultation. Geneva: World Health Organization, 2003. Available at: http://www.whqlibdoc.who.int/trs/who_trs_916.pdf (Accessed May 9, 2015).Google Scholar
  4. 4.
    Canadian Partnership Against Cancer. Nutrition and Physical Activity Policy Alignment in Action Initiative: Canadian Priorities for Addressing Obesity as a Cancer and Chronic Disease Factor. Toronto, ON: Canadian Partnership Against Cancer, 2010. Available at: http://www.cancerview.ca/idc/groups/public/documents/webcontent/prevention_aia_report.pdf (Accessed May 9, 2015)Google Scholar
  5. 5.
    Ontario Ministry of Health and Long-Term Care. Ontario’s Action Plan for Health Care. Toronto, ON: Queen’s Printer for Ontario, 2012. Available at: http://www.health.gov.on.ca/en/ms/ecfa/healthy_change/docs/rep_ healthychange. pdf (Accessed May 9, 2015)Google Scholar
  6. 6.
    Healthy Kids Panel. No Time to Wait: The Healthy Kids Strategy. Toronto, ON: Queen’s Printer for Ontario, 2013. Available at: http://www.health.gov.on.ca/en/common/ministry/publications/reports/healthy_kids/healthy_kids.pdf (Accessed May 9, 2015)Google Scholar
  7. 7.
    Ontario Ministry of Health and Long-Term Care. Healthy Kids Community Challenge: It Takes a Community to Raise a Healthy Child. [Internet]. Toronto, ON: Queen’s Printer for Ontario, 2009–2010. [updated March 30, 2015; cited February 12, 2014]. Available at: http://www.health.gov.on.ca/en/public/programs/healthykids/Google Scholar
  8. 8.
    Ramanathan S, Allison KR, Faulkner G, Dwyer JJ. Challenges in assessing the implementation and effectiveness of physical activity and nutrition policy interventions as natural experiments. Health Promot Int 2008;23(3):290–97. doi: 10.1093/heapro/dan022CrossRefGoogle Scholar
  9. 9.
    McKinnon RA, Orleans CT, Kumanyika SK, Haire-Joshu D, Krebs-Smith SM, Finkelstein EA, et al. Considerations for an obesity policy research agenda. Am J Prev Med 2009;36(4):351–57. PMID: 19211215. doi: 10.1016/j.amepre.2008. 11.017CrossRefGoogle Scholar
  10. 10.
    Shields M, Tremblay MS. Canadian childhood obesity estimates based on WHO, IOTF and CDC cut-points. Int J Pediatr Obes 2010;5(3):265–73. PMID: 20210678. doi: 10.3109/17477160903268282CrossRefGoogle Scholar
  11. 11.
    Shields M. Overweight and obesity among children and youth. Health Rep 2006;17(3):27–42. PMID: 16981484PubMedPubMedCentralGoogle Scholar
  12. 12.
    Roberts KC, Shields M, de Groh M, Aziz A, Gilbert JA. Overweight and obesity in children and adolescents: Results from the 2009 to 2011 Canadian Health Measures Survey. Health Rep 2012;23(3):37–41.Google Scholar
  13. 13.
    Kish L. Cumulating/combining population surveys. Surv Method 1999; 25(2):129–38.Google Scholar
  14. 14.
    Korn EL, Graubard BI. Analysis of Health Surveys. New York, NY: Wiley & Sons, Inc., 1999.CrossRefGoogle Scholar
  15. 15.
    Boak A, Hamilton HA, Adlaf EM, Beitchman JH, Wolfe D, Mann RE. The Mental Health and Well-Being of Ontario Students, 1991–2013: Detailed OSDUHS Findings (CAMH Research Document Series No. 38). Toronto, ON: Centre for Addiction and Mental Health, 2014.CrossRefGoogle Scholar
  16. 16.
    Heeringa SG, West BT, Berglund PA. Applied Survey Data Analysis. Boca Raton, FL: Taylor & Francis Group, 2010.CrossRefGoogle Scholar
  17. 17.
    Graubard BI, Korn EL. Survey inference for subpopulations. Am J Epidemiol 1996;144:102–6CrossRefGoogle Scholar
  18. 18.
    StataCorp. Stata Statistical Software: Release 13. College Station, TX: StataCorp LP, 2013.Google Scholar
  19. 19.
    Ogden CL, Carroll MD, Kit BK, Flegal KM. Prevalence of childhood and adult obesity in the United States, 2011–2012. JAMA 2014;311(8):806–14. PMID: 24570244. doi: 10.1001/jama.2014.732CrossRefGoogle Scholar
  20. 20.
    Pinhas L, McVey G, Walker KS, Norris M, Katzman D, Collier S. Trading health for a healthy weight: The uncharted side of healthy weights initiatives. Eat Disord 2013;21(2):109–16. PMID: 23421694. doi: 10.1080/ 10640266.2013.761082CrossRefGoogle Scholar
  21. 21.
    Sawyer SM, Afifi RA, Bearinger LH, Blakemore SJ, Dick B, Ezeh AC, et al. Adolescence: A foundation for future health. Lancet 2012;379(9826): 1630–40. PMID: 22538178. doi: 10.1016/S0140-6736(12)60072-5CrossRefGoogle Scholar
  22. 22.
    Brener ND, Mcmanus T, Galuska DA, Lowry R, Wechsler H. Reliability and validity of self-reported height and weight among high school students. J Adolesc Health 2003;32(4):281–87. PMID: 12667732. doi: 10.1016/S1054-139X (02)00708-5CrossRefGoogle Scholar
  23. 23.
    Elgar FJ, Stewart JM. Validity of self-report screening for overweight and obesity. Evidence from the Canadian Community Health Survey. Can J Public Health 2008;99(5):423–27. PMID: 19009930PubMedGoogle Scholar
  24. 24.
    Sherry B, Jefferds ME, Grummer-Strawn LM. Accuracy of adolescent self-report of height and weight in assessing overweight status: A literature review. Arch Pediatr Adolesc Med 2007;161(12):1154–61. PMID: 18056560. doi: 10.1001/archpedi.161.12.1154CrossRefGoogle Scholar
  25. 25.
    Tsigilis N. Can secondary school students’ self-reported measures of height and weight be trusted? An effect size approach. Eur J Public Health 2006; 16(5):532–35. PMID: 16601105. doi: 10.1093/eurpub/ckl050CrossRefGoogle Scholar
  26. 26.
    Bibiloni MDM, Pons A, Tur JA. Prevalence of overweight and obesity in adolescents: A systematic review. ISRN Obes 2013;2013:392747. PMID: 24555142. doi: 10.1155/2013/392747PubMedCentralGoogle Scholar
  27. 27.
    Rolland-Cachera MF. Childhood obesity: Current definitions and recommendations for their use. Int J Pediatr Obes 2011;6(5–6):325–31. PMID: 21916784. doi: 10.3109/17477166.2011.607458CrossRefGoogle Scholar

Copyright information

© The Canadian Public Health Association 2015

Authors and Affiliations

  • Kenneth R. Allison
    • 1
    • 2
    Email author
  • Hyacinth M. Irving
    • 3
  • Edward M. Adlaf
    • 2
    • 4
  • Guy E. J. Faulkner
    • 5
    • 6
  • Angela Boak
    • 4
  • Heather E. Manson
    • 1
    • 2
  • Hayley A. Hamilton
    • 2
    • 4
  • Bessie Ng
    • 7
  1. 1.Department of Health Promotion, Chronic Disease and Injury PreventionPublic Health OntarioTorontoCanada
  2. 2.Dalla Lana School of Public HealthUniversity of TorontoTorontoCanada
  3. 3.Centre for Global Health Research, Li Ka Shing Knowledge InstituteSt. Michael’s HospitalTorontoCanada
  4. 4.Social and Epidemiological Research DepartmentCentre for Addiction and Mental Health (CAMH)TorontoCanada
  5. 5.School of KinesiologyUniversity of British ColumbiaVancouverCanada
  6. 6.Faculty of Kinesiology and Physical EducationUniversity of TorontoTorontoCanada
  7. 7.Region of Waterloo Public Health and Emergency ServicesWaterlooCanada

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