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Ha Le, PhD candidate Community Health and Epidemiology

Dietary Intake and Overweight in children aged 10-14 years in Saskatoon Canada Public Health Association, Annual Conference Toronto May 26-29, 2014. Ha Le, PhD candidate Community Health and Epidemiology. Overview. Background Purpose Methods Results Conclusions. Background.

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Ha Le, PhD candidate Community Health and Epidemiology

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  1. Dietary Intake and Overweight in children aged 10-14 years in SaskatoonCanada Public Health Association, Annual ConferenceToronto May 26-29, 2014 Ha Le, PhD candidateCommunity Health and Epidemiology

  2. Overview • Background • Purpose • Methods • Results • Conclusions

  3. Background The global burden of obesity among children and aldolescents is estimated to be 1 in 10 (Lobstein T et al, 2014) Dramatic temporal increases in the prevalence of overweight and obesity in Canadian children (31.5% for children 5-17 years old, CCHS 2009-2011) Dietary intake is a corner stone of weight management across the life cycle and play important role in influencing the likelihood of being overweight during childhood and adolescence.

  4. Purpose The purpose of this study is to examinedietary intake and the association between overweight and nutrition-related factors among children aged 10-14 years old in Saskatoon who participated in the ‘Smart Cities and Healthy Kids – Food environment Study’

  5. Methods (1) 1408 children, ages of 10-14years, from all residential neighbourhoods in Saskatoon (n=61) were surveyed at school in March/April2012. Survey instrument included questions on socio-demographic characteristics the Harvard Youth and Adolescent Food Frequency Questionnaire (YAQ) for dietary assessment (147 items)

  6. Methods (2) We assessed students’ dietary intake and compared this with the Canadian food group and nutrient recommendations. Children’s height and weight were measured and BMI calculated using the age and sexspecific BMI calculator from the WHO (2007), AnthroPlus version 3.1. Using WHO reference (2007), we classified children as normal weight (+/-1SD), overweight or obese (greater than +1SD) and obese (greater than +2SD).

  7. Methods (3) • Data was evaluated using SPSS version 18 • Logistic regression was performed using 3 models todetermine the associations between overweight and frequency of consumption for the four food groups • Model 1 included overweight and frequency of consumption of a food groupcontrolling for socio-demographic variables • Model 2 was the same as Model 1 but included additional simulteneous adjustments for the frequency of comsumption of all other 3 food groups • Model 3 included all significant variables at p-value<0.05

  8. Results

  9. Recommended and Observed Number of Servings from Canada’s Food Guide for Healthy Eating

  10. Prevalence of Inadequate Dietary IntakeSaskatoon study vs. Nova Scotia study

  11. Macronutrient intake DRI: Dietary Reference Intakes. AMDR: Acceptable Macronutrient Distribution Range. AI: Adequate Intake

  12. Vitamins and Minerals EAR: Estimated Average Requirement. AI: Adequate Intake. UL: Upper Limit

  13. Overweight/Obesity

  14. Overweight and frequency of food group consumption

  15. Overweight and associated risk factors

  16. Conclusions Dietary intake among adolescent children in Saskatoon is relatively poor. The proportion of children who are overweight/obese in Saskatoon (36.3%) is higher than that of Canadian children (31.5%). Significant differences observed in prevalence of overweight across gender, age, aboriginal status and SES. A protective association for consumption of dairy and a neagative association for consumption of meats and alternatives was observed among children living in Saskatoon The development of evidence-based policies and prevention initiatives targeting children and their families may improve dietary quality and prevent obesity.

  17. Reference • Lobstein T, Baur L, Uauy R: Obesity in children and young people: A crisisin public health. Obes Rev 2004, 5(Suppl 1):4-104 • Matthews, V. L., Wien, M., & Sabaté, J. (2011). The risk of child and adolescent overweight is related to types of food consumed. Nutr J, 10(1), 71-74. • Veugelers, P. J., Fitzgerald, A. L., & Johnston, E. (2005). Dietary intake and risk factors for poor diet quality among children in Nova Scotia. Canadian Journal of Public Health, 96(3).

  18. Acknowledgement Dr. Nazeem Muhajarine Dr. Rachel Engler-Stringer Tracy Ridalls and SCHK research team

  19. Thank you

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