Data sources: Canadian Community Health Survey 2000 & 2001, 2003, 2005, 2007 & 2008, 2009 & 2010, 2011 & 2012, 2013 & 2014, Statistics Canada, Share File, Ontario Ministry of Health and LongTerm Care
Sample: Residents 18 years and over in the KFL&A area.
Released: April 2016
Introduction 

The Canadian Community Health Survey collects selfreport height and weight from respondents. All proportions shown here have been adjusted using a body mass index (BMI) adjustment factor to account for biases in selfreporting of height and weight, as recommended by Statistics Canada. BMI is calculated by using the formula: BMI=weight(kg)/height(m)^{2} Table A shows how BMI is classified into categories. For example, if someone has a BMI that is 27.6, they will be classified in the 'overweight' category.


Normal or underweight adults, 18+  
Figure A. Normal or underweight adults, 18+, in KFL&A and Ontario*Note for years 2000/01, BMI was calculated only for those aged 20 to 64
*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Interpretation for Figure AIn 2013 & 2014 in KFL&A, 31.1% (26.4, 36.1) of the population 18+ was normal or underweight. In Ontario, the proportion of those who are normal or underweight is decreasing over time. 

Overweight adults, 18+ 

Figure B. Overweight adults, 18+, in KFL&A and Ontario*Note for years 2000/01, BMI was calculated only for those aged 20 to 64
*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Interpretation for Figure BIn 2013 & 2014 in KFL&A, 37.2% (33.0, 41.7) of the population 18+ was overweight. The proportion of those who are overweight has remained fairly constant over time. 

Obese adults, 18+  
Figure C. Obese adults, 18+, in KFL&A and Ontario*Note for years 2000/01, BMI was calculated only for those aged 20 to 64
*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Interpretation for Figure CIn 2013 & 2014 in KFL&A, 31.7% (27.4, 36.4) of the population 18+ was obese. In Ontario, the proportion of those who are obese is increasing over time. The proportion of those who are obese in 2013 & 2014 is higher than that of 2009 & 2010 and years prior. 

Overweight or obese adults, 18+ 

Figure D. Overweight or obese adults, 18+, in KFL&A and Ontario*Note for years 2000/01, BMI was calculated only for those aged 20 to 64
*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Interpretation for Figure DIn 2013 & 2014 in KFL&A, 68.9% (63.9, 73.6) of the population 18+ was overweight or obese. In Ontario, the proportion of those who are overweight or obese is increasing over time. The proportion of those who are overweight or obese in 2013 & 2014 is higher than that of 2007 & 2008 and years prior. 

Overweight or obese adults, 18+, by sex 

Figure E. Overweight or obese adults, 18+, by sex in KFL&A*Note for years 2000/01, BMI was calculated only for those aged 20 to 64
*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Interpretation for Figure EIn 2013 & 2014 in KFL&A, 73.2% (66.5, 78.9) of the male population 18+ and 64.6% (57.4, 71.1) of the female population 18+ was overweight or obese. There are no differences between males and females with respect to the proportion of those who are overweight or obese. Figure F. Overweight or obese adults, 18+, by sex in Ontario*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Table F. Overweight or obese adults, 18+, by sex in Ontario, % (95% Confidence Interval)
*Note for years 2000/01, BMI was calculated only for those aged 20 to 64 Interpretation for Figure FIn 2013 & 2014 in Ontario, 68.4% (67.1, 69.7) of the male population 18+ and 55.9% (54.6, 57.2) of the female population 18+ was overweight or obese. There are no differences between males and females with respect to the proportion of those who are overweight or obese. 

Overweight or obese adults, 18+, by income group 

Figure G. Overweight or obese adults, 18+, by income group in KFL&A and Ontario, 2013 & 2014Table G. Overweight or obese adults, 18+, by income group in KFL&A and Ontario, 2013 & 2014, % (95% Confidence Interval)
Interpretation for Figure GIn Ontario, in higher income areas than lower income areas, a greater proportion of the population is overweight or obese. Notes on the income groupings:The income variable was based on a derived income variable from the CCHS. This variable provided a distribution of respondents in deciles based on the adjusted ratio of their total household income to the low income cutoff corresponding to their household and community size. It provides, for each respondent, a relative measure of their household income to the household incomes of all other respondents. The income variables used in this report were determined as follows: the lowest 3 deciles of the derived variable from CCHS were categorized into 'Lower Income', the middle 4 deciles were categorized into 'Middle Income' and the highest 3 deciles were categorized into 'Higher Income'. 

Overweight or obese adults, 18+, by urban and rural status 

Figure H. Overweight or obese adults, 18+, by urban and rural status in KFL&A and Ontario, 2013 & 2014
Interpretation for Figure HIn Ontario, in rural areas, a greater proportion of the population is overweight or obese. 

Overweight or obese, adults 18 to 29 

Figure I. Overweight or obese adults, 18 to 29, in KFL&A and Ontario*Use with caution due to high variability. Table I. Overweight or obese adults, 18 to 29, in KFL&A and Ontario, % (95% Confidence Interval)
*Use with caution due to high variability. Interpretation for Figure IIn 2013 & 2014 in KFL&A, 38.8*% (26.1, 53.1) of the population 18 to 29 was overweight or obese. No trends over time are seen in KFL&A or Ontario. *Use with caution due to high variability. 

Overweight or obese, adults 30 to 39 

Figure J. Overweight or obese adults, 30 to 39, in KFL&A and Ontario
Interpretation for Figure JIn 2013 & 2014 in KFL&A, 73.9% (59.9, 84.3) of the population 30 to 39 was overweight or obese. No trends over time are seen in KFL&A or Ontario. 

Overweight or obese, adults 40 to 49 

Figure K. Overweight or obese adults, 40 to 49, in KFL&A and Ontario
Interpretation for Figure KIn 2013 & 2014 in KFL&A, 80.2% (62.7, 90.7) of the population 40 to 49 was overweight or obese. In Ontario, there is an upward trend in those aged 40 to 49 who are overweight or obese. 

Overweight or obese, adults 50 to 64 

Figure L. Overweight or obese adults, 50 to 64, in KFL&A and Ontario
Interpretation for Figure LIn 2013 & 2014 in KFL&A, 78.4% (68.0, 86.2) of the population 50 to 64 was overweight or obese. No trends over time are seen in KFL&A or Ontario. 

Overweight or obese, adults 65+ 

Figure M. Overweight or obese adults, 65+, in KFL&A and Ontario
Interpretation for Figure MIn 2013 & 2014 in KFL&A, 69.9% (61.8, 76.9) of the population 65+ was overweight or obese. In 2013 & 2014 in Ontario, there was a higher proportion of those overweight or obese than in 2003 and 2005 in those aged 65+. Please note that the CCHS 2000 to 2001 cycle did not collect BMI information on those aged 65+ and thus cannot be included in Figure M. 

Confidence intervals explained  
Researchers look at the "confidence levels" of percentages being compared to decide if there is a statistically significant difference between percentages. A statistically significant difference means that:
In this report, 95% confidence intervals will accompany each percentage in all figures and tables. This interval represents the range in which we are 95% confident the true percentage will fall within. In tables, the 95% confidence intervals will be written with the percentage, followed by the 95% confidence interval range in brackets (e.g., 25% (12.3, 32.4)). In figures, the 95% confidence interval is represented by vertical bars in each bar line. 

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