Diseases and physical health conditions
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All (13) (0 to 10 of 13 results)
- 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 - 2. 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 - 3. Social class, gender, and time use: Implications for the social determinants of body weight? ArchivedArticles and reports: 82-003-X200900411020Geography: CanadaDescription:
This study examines time-use patterns by indicators of socio-economic position, and considers the implications of variations in time use for the social gradient in weight reported in other studies. The data are from the 1986 and 2005 General Social Survey, which focused on time use.
Release date: 2009-11-18 - Articles and reports: 82-003-X200900410933Geography: CanadaDescription:
This study examines the association between obesity and the relative percentages of fats, carbohydrates, protein and fibre in the diets of Canadians. The data are from the 2004 Canadian Community Health Survey - Nutrition.
Release date: 2009-10-21 - Articles and reports: 82-003-X200900410934Geography: CanadaDescription:
This study compares several major risk factors and chronic conditions in Aboriginal and non-Aboriginal populations not living on reserves in the North (Yukon, Northwest Territories, Nunavut) and in southern Canada at two time points. The data are from cycle 1.1 (2000/2001) and cycle 3.1 (2005/2006) of the Canadian Community Health Survey.
Release date: 2009-10-21 - Articles and reports: 82-003-X200900310921Geography: CanadaDescription:
This study identifies, in a representative sample of Canadian children, age-related patterns of overweight and obesity between toddlerhood and childhood. The data are from cycles 2 through 5 (1996/1997 to 2002/2003) of the National Longitudinal Survey of Children and Youth. The sample comprised children aged 24 to 35 months at baseline, who were followed biennially over six years.
Release date: 2009-09-16 - 7. An update on mammography use in Canada ArchivedArticles and reports: 82-003-X200900310873Geography: CanadaDescription:
This article updates mammography use by Canadian women aged 50 to 69, and reports trends from 1990 to 2008 among the provinces.
Release date: 2009-06-30 - 8. Colorectal cancer testing in Canada 2008 ArchivedArticles and reports: 82-003-X200900310874Geography: CanadaDescription:
This article provides estimates of the reported level of colorectal cancer testing in the Canadian population aged 50 or older in 2008.
Release date: 2009-06-30 - Articles and reports: 82-003-X200900210871Geography: CanadaDescription:
This article examines longitudinal relationships between body weight and self-esteem in a nationally representative probability sample of Canadian children. The data are from cycles 1, 2 and 3 of the National Longitudinal Survey of Children and Youth.
Release date: 2009-06-17 - Articles and reports: 82-003-X200900210872Geography: CanadaDescription:
This article examines geographical variations in 30-day revascularization rates and 30-day in-hospital mortality rates for Canadian heart attack (acute myocardial infarction) patients. The data are from the Health Person-Oriented Information Database and pertain to health regions with at least 100,000 population in seven provinces for the years 1995/1996 and 2003/2004.
Release date: 2009-06-17
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Analysis (13)
Analysis (13) (0 to 10 of 13 results)
- 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 - 2. 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 - 3. Social class, gender, and time use: Implications for the social determinants of body weight? ArchivedArticles and reports: 82-003-X200900411020Geography: CanadaDescription:
This study examines time-use patterns by indicators of socio-economic position, and considers the implications of variations in time use for the social gradient in weight reported in other studies. The data are from the 1986 and 2005 General Social Survey, which focused on time use.
Release date: 2009-11-18 - Articles and reports: 82-003-X200900410933Geography: CanadaDescription:
This study examines the association between obesity and the relative percentages of fats, carbohydrates, protein and fibre in the diets of Canadians. The data are from the 2004 Canadian Community Health Survey - Nutrition.
Release date: 2009-10-21 - Articles and reports: 82-003-X200900410934Geography: CanadaDescription:
This study compares several major risk factors and chronic conditions in Aboriginal and non-Aboriginal populations not living on reserves in the North (Yukon, Northwest Territories, Nunavut) and in southern Canada at two time points. The data are from cycle 1.1 (2000/2001) and cycle 3.1 (2005/2006) of the Canadian Community Health Survey.
Release date: 2009-10-21 - Articles and reports: 82-003-X200900310921Geography: CanadaDescription:
This study identifies, in a representative sample of Canadian children, age-related patterns of overweight and obesity between toddlerhood and childhood. The data are from cycles 2 through 5 (1996/1997 to 2002/2003) of the National Longitudinal Survey of Children and Youth. The sample comprised children aged 24 to 35 months at baseline, who were followed biennially over six years.
Release date: 2009-09-16 - 7. An update on mammography use in Canada ArchivedArticles and reports: 82-003-X200900310873Geography: CanadaDescription:
This article updates mammography use by Canadian women aged 50 to 69, and reports trends from 1990 to 2008 among the provinces.
Release date: 2009-06-30 - 8. Colorectal cancer testing in Canada 2008 ArchivedArticles and reports: 82-003-X200900310874Geography: CanadaDescription:
This article provides estimates of the reported level of colorectal cancer testing in the Canadian population aged 50 or older in 2008.
Release date: 2009-06-30 - Articles and reports: 82-003-X200900210871Geography: CanadaDescription:
This article examines longitudinal relationships between body weight and self-esteem in a nationally representative probability sample of Canadian children. The data are from cycles 1, 2 and 3 of the National Longitudinal Survey of Children and Youth.
Release date: 2009-06-17 - Articles and reports: 82-003-X200900210872Geography: CanadaDescription:
This article examines geographical variations in 30-day revascularization rates and 30-day in-hospital mortality rates for Canadian heart attack (acute myocardial infarction) patients. The data are from the Health Person-Oriented Information Database and pertain to health regions with at least 100,000 population in seven provinces for the years 1995/1996 and 2003/2004.
Release date: 2009-06-17
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