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All (15) (0 to 10 of 15 results)
- 1. Abdominal obesity and cardiovascular disease risk factors within body mass index categories ArchivedArticles and reports: 82-003-X201200211653Geography: CanadaDescription:
Based on data from the 2007 to 2009 Canadian Health Measures Survey, this study examines associations between measures of abdominal obesity and cardiovascular risk factors within the body mass index categories for adults aged 18 to 79. The abdominal obesity measures considered are waist circumference, waist-to-hip ratio, and waist-to-height ratio.
Release date: 2012-05-16 - Articles and reports: 82-003-X201200211654Geography: CanadaDescription:
This article documents changes in obesity indicators between 1981 and 2007-2009 in Canadians aged 20 to 69 years, based on measured data collected in two population-based health surveys. The primary objective was to examine changes in abdominal obesity within body mass index categories, based on waist circumference, waist-to-hip ratio, and waist-to-height ratio.
Release date: 2012-05-16 - Articles and reports: 82-003-X201200211648Geography: CanadaDescription:
This analysis uses information from the 2007 to 2009 Canadian Health Measures Survey to examine moderate-to-vigorous physical activity, sedentary behaviour and sleep duration in children aged 6 to 11. The objective was to compare and contrast findings from these data collection methods and explore differences in their associations with health markers in children.
Release date: 2012-04-18 - Articles and reports: 82-003-X201100311533Geography: CanadaDescription:
This study compares the bias in self-reported height, weight and body mass index in the 2008 and 2005 Canadian Community Health Surveys and the 2007 to 2009 Canadian Health Measures Survey. The feasibility of using correction equations to adjust self-reported 2008 Canadian Community Health Survey values to more closely approximate measured values is assessed.
Release date: 2011-08-17 - Articles and reports: 82-003-X201100311534Geography: CanadaDescription:
Using data from the 2007 to 2009 Canadian Health Measures Survey, this study investigates the bias that exists when height, weight and body mass index are based on parent-reported values. Factors associated with reporting error are used to establish the feasibility of developing correction equations to adjust parent-reported estimates.
Release date: 2011-08-17 - Articles and reports: 82-003-X201000111064Geography: CanadaDescription:
This article provides up-to-date estimates of fitness levels of Canadians aged 20 to 69 years. Results are compared with estimates from 1981.
Release date: 2010-01-13 - 7. Fitness of Canadian children and youth: Results from the 2007-2009 Canadian Health Measures Survey ArchivedArticles and reports: 82-003-X201000111065Geography: CanadaDescription:
This article provides up-to-date estimates of fitness levels of Canadians aged 6 to 19 years. Results are compared with estimates from 1981.
Release date: 2010-01-13 - 8. Quality control and data reduction procedures for accelerometry-derived measures of physical activity ArchivedArticles and reports: 82-003-X201000111066Geography: CanadaDescription:
This article considers critical quality control and data reduction procedures that should be addressed before physical activity information is derived from accelerometry data.
Release date: 2010-01-13 - Articles and reports: 11-522-X200800011002Description:
Based on a representative sample of the Canadian population, this article quantifies the bias resulting from the use of self-reported rather than directly measured height, weight and body mass index (BMI). Associations between BMI categories and selected health conditions are compared to see if the misclassification resulting from the use of self-reported data alters associations between obesity and obesity-related health conditions. The analysis is based on 4,567 respondents to the 2005 Canadian Community Health Survey (CCHS) who, during a face-to-face interview, provided self-reported values for height and weight and were then measured by trained interviewers. Based on self-reported data, a substantial proportion of individuals with excess body weight were erroneously placed in lower BMI categories. This misclassification resulted in elevated associations between overweight/obesity and morbidity.
Release date: 2009-12-03 - 10. Correcting self-reported estimates of obesity: Can we more closely approximate measured values? ArchivedArticles and reports: 11-522-X200800011003Description:
This study examined the feasibility of developing correction factors to adjust self-reported measures of Body Mass Index to more closely approximate measured values. Data are from the 2005 Canadian Community Health Survey where respondents were asked to report their height and weight and were subsequently measured. Regression analyses were used to determine which socio-demographic and health characteristics were associated with the discrepancies between reported and measured values. The sample was then split into two groups. In the first, the self-reported BMI and the predictors of the discrepancies were regressed on the measured BMI. Correction equations were generated using all predictor variables that were significant at the p<0.05 level. These correction equations were then tested in the second group to derive estimates of sensitivity, specificity and of obesity prevalence. Logistic regression was used to examine the relationship between measured, reported and corrected BMI and obesity-related health conditions. Corrected estimates provided more accurate measures of obesity prevalence, mean BMI and sensitivity levels. Self-reported data exaggerated the relationship between BMI and health conditions, while in most cases the corrected estimates provided odds ratios that were more similar to those generated with the measured BMI.
Release date: 2009-12-03
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Articles and reports (15)
Articles and reports (15) (0 to 10 of 15 results)
- 1. Abdominal obesity and cardiovascular disease risk factors within body mass index categories ArchivedArticles and reports: 82-003-X201200211653Geography: CanadaDescription:
Based on data from the 2007 to 2009 Canadian Health Measures Survey, this study examines associations between measures of abdominal obesity and cardiovascular risk factors within the body mass index categories for adults aged 18 to 79. The abdominal obesity measures considered are waist circumference, waist-to-hip ratio, and waist-to-height ratio.
Release date: 2012-05-16 - Articles and reports: 82-003-X201200211654Geography: CanadaDescription:
This article documents changes in obesity indicators between 1981 and 2007-2009 in Canadians aged 20 to 69 years, based on measured data collected in two population-based health surveys. The primary objective was to examine changes in abdominal obesity within body mass index categories, based on waist circumference, waist-to-hip ratio, and waist-to-height ratio.
Release date: 2012-05-16 - Articles and reports: 82-003-X201200211648Geography: CanadaDescription:
This analysis uses information from the 2007 to 2009 Canadian Health Measures Survey to examine moderate-to-vigorous physical activity, sedentary behaviour and sleep duration in children aged 6 to 11. The objective was to compare and contrast findings from these data collection methods and explore differences in their associations with health markers in children.
Release date: 2012-04-18 - Articles and reports: 82-003-X201100311533Geography: CanadaDescription:
This study compares the bias in self-reported height, weight and body mass index in the 2008 and 2005 Canadian Community Health Surveys and the 2007 to 2009 Canadian Health Measures Survey. The feasibility of using correction equations to adjust self-reported 2008 Canadian Community Health Survey values to more closely approximate measured values is assessed.
Release date: 2011-08-17 - Articles and reports: 82-003-X201100311534Geography: CanadaDescription:
Using data from the 2007 to 2009 Canadian Health Measures Survey, this study investigates the bias that exists when height, weight and body mass index are based on parent-reported values. Factors associated with reporting error are used to establish the feasibility of developing correction equations to adjust parent-reported estimates.
Release date: 2011-08-17 - Articles and reports: 82-003-X201000111064Geography: CanadaDescription:
This article provides up-to-date estimates of fitness levels of Canadians aged 20 to 69 years. Results are compared with estimates from 1981.
Release date: 2010-01-13 - 7. Fitness of Canadian children and youth: Results from the 2007-2009 Canadian Health Measures Survey ArchivedArticles and reports: 82-003-X201000111065Geography: CanadaDescription:
This article provides up-to-date estimates of fitness levels of Canadians aged 6 to 19 years. Results are compared with estimates from 1981.
Release date: 2010-01-13 - 8. Quality control and data reduction procedures for accelerometry-derived measures of physical activity ArchivedArticles and reports: 82-003-X201000111066Geography: CanadaDescription:
This article considers critical quality control and data reduction procedures that should be addressed before physical activity information is derived from accelerometry data.
Release date: 2010-01-13 - Articles and reports: 11-522-X200800011002Description:
Based on a representative sample of the Canadian population, this article quantifies the bias resulting from the use of self-reported rather than directly measured height, weight and body mass index (BMI). Associations between BMI categories and selected health conditions are compared to see if the misclassification resulting from the use of self-reported data alters associations between obesity and obesity-related health conditions. The analysis is based on 4,567 respondents to the 2005 Canadian Community Health Survey (CCHS) who, during a face-to-face interview, provided self-reported values for height and weight and were then measured by trained interviewers. Based on self-reported data, a substantial proportion of individuals with excess body weight were erroneously placed in lower BMI categories. This misclassification resulted in elevated associations between overweight/obesity and morbidity.
Release date: 2009-12-03 - 10. Correcting self-reported estimates of obesity: Can we more closely approximate measured values? ArchivedArticles and reports: 11-522-X200800011003Description:
This study examined the feasibility of developing correction factors to adjust self-reported measures of Body Mass Index to more closely approximate measured values. Data are from the 2005 Canadian Community Health Survey where respondents were asked to report their height and weight and were subsequently measured. Regression analyses were used to determine which socio-demographic and health characteristics were associated with the discrepancies between reported and measured values. The sample was then split into two groups. In the first, the self-reported BMI and the predictors of the discrepancies were regressed on the measured BMI. Correction equations were generated using all predictor variables that were significant at the p<0.05 level. These correction equations were then tested in the second group to derive estimates of sensitivity, specificity and of obesity prevalence. Logistic regression was used to examine the relationship between measured, reported and corrected BMI and obesity-related health conditions. Corrected estimates provided more accurate measures of obesity prevalence, mean BMI and sensitivity levels. Self-reported data exaggerated the relationship between BMI and health conditions, while in most cases the corrected estimates provided odds ratios that were more similar to those generated with the measured BMI.
Release date: 2009-12-03
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Journals and periodicals (0) (0 results)
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