Comparing life expectancy and health-adjusted life expectancy by body mass index category in adult Canadians: a descriptive study

Steensma, Colin; Loukine, Lidia; Orpana, Heather; Lo, Ernest; Choi, Bernard; Waters, Chris; Martel, Sylvie
April 2013
Population Health Metrics;2013, Vol. 11, p21
Academic Journal
Background: While many studies have examined differences between body mass index (BMI) categories in terms of mortality risk and health-related quality of life (HRQL), little is known about the effect of body weight on health expectancy. We examined life expectancy (LE), health-adjusted life expectancy (HALE), and proportion of LE spent in nonoptimal (or poor) health by BMI category for the Canadian adult population (age ? 20). Methods: Respondents to the National Population Health Survey (NPHS) were followed for mortality outcomes from 1994 to 2009. Our study population at baseline (n=12,478) was 20 to 100 years old with an average age of 47. LE was produced by building abridged life tables by sex and BMI category using data from the NPHS and the Canadian Chronic Disease Surveillance System. HALE was estimated using the Health Utilities Index from the Canadian Community Health Survey as a measure of HRQL. The contribution of HRQL to loss of healthy life years for each BMI category was also assessed using two methods: by calculating differences between LE and HALE proportional to LE and by using a decomposition technique to separate out mortality and HRQL contributions to loss of HALE. Results: At age 20, for both sexes, LE is significantly lower in the underweight and obesity class 2+ categories, but significantly higher in the overweight category when compared to normal weight (obesity class 1 was nonsignificant). HALE at age 20 follows these same associations and is significantly lower for class 1 obesity in women. Proportion of life spent in nonoptimal health and decomposition of HALE demonstrate progressively higher losses of healthy life associated with lowered HRQL for BMI categories in excess of normal weight. Conclusions: Although being in the overweight category for adults may be associated with a gain in life expectancy as compared to normal weight adults, overweight individuals also experience a higher proportion of these years of life in poorer health. Due to the descriptive nature of this study, further research is needed to explore the causal mechanisms which explain these results, including the important differences we observed between sexes and within obesity subcategories.


Related Articles

  • Positive Associations of Dispositional Mindfulness with Cardiovascular Health: the New England Family Study. Loucks, Eric; Britton, Willoughby; Howe, Chanelle; Eaton, Charles; Buka, Stephen // International Journal of Behavioral Medicine;Aug2015, Vol. 22 Issue 4, p540 

    Background: Mindfulness (the ability to attend nonjudgmentally to one's own physical and mental processes) is receiving substantial interest as a potential determinant of health. However, little is known whether mindfulness is associated with cardiovascular health. Purpose: The aim of this study...

  • The Relationship between Dietary Patterns and Metabolic Health in a Representative Sample of Adult Australians. Bell, Lucinda K.; Edwards, Suzanne; Grieger, Jessica A. // Nutrients;2015, Vol. 7 Issue 8, p6491 

    Studies assessing dietary intake and its relationship to metabolic phenotype are emerging, but limited. The aims of the study are to identify dietary patterns in Australian adults, and to determine whether these dietary patterns are associated with metabolic phenotype and obesity....

  • Millennials at work: workplace environments of young adults and associations with weight-related health. Watts, Allison W.; Laska, Melissa N.; Larson, Nicole I.; Neumark-Sztainer, Dianne R. // Journal of Epidemiology & Community Health;Jan2016, Vol. 70 Issue 1, p65 

    Background The purpose of this study was to describe the workplace environments of young adults and examine associations with diet, physical activity (PA) and body mass index (BMI). Methods Cross-sectional data were collected (2008-2009) from 1538 employed young adult participants in Project EAT...

  • All-Cause Mortality Risk of Metabolically Healthy Obese Individuals in NHANES III. Durward, C. M.; Hartman, T. J.; Nickols-Richardson, S. M. // Journal of Obesity;2012, Vol. 2012, p1 

    Mortality risk across metabolic health-by-BMI categories in NHANES-III was examined. Metabolic health was defined as: (1) homeostasis model assessment-insulin resistance (HOMA-IR) <2.5; (2) ⩽2 Adult Treatment Panel (ATP) III metabolic syndrome criteria; (3) combined definition using ⩽1...

  • Factors influencing BMI classifications of Korean adults. AE KYUNG CHANG; JIN YI CHOI // Journal of Physical Therapy Science;2015, Vol. 27 Issue 5, p1565 

    [Purpose] This study aimed to identify factors influencing the BMI classifications of 3,583 Korean adults using data from the fifth Korean National Health and Nutrition Examination Survey. [Subjects and Methods] Measures included lifestyle factors, physiologic factors, perceived health state,...


    The article discusses a study which examined the association between weight perception and health-related quality of life (HRQoL) among college students with normal weight. The study collected data from 369 randomly selected college students attending a public university in central Appalachia....

  • Relative validity of a short qualitative food frequency questionnaire for use in food consumption surveys. De Keyzer, Willem; Dekkers, Arnold; Van Vlaslaer, Veerle; Ottevaere, Charlene; Van Oyen, Herman; De Henauw, Stefaan; Huybrechts, Inge // European Journal of Public Health;Oct2013, Vol. 23 Issue 5, p737 

    Background: The aim of the present study was to assess the relative validity of a self-administered qualitative food frequency questionnaire (FFQ) applied in the Belgian food consumption survey. Methods: Comparison of food consumption data from an FFQ with 7-day estimated diet records (EDR) was...

  • Health Status Sensed by the Adult Latin American Immigrant Population in the City of Seville, Spain. González-López, J.; Rodríguez-Gázquez, M.; Lomas-Campos, M. // Journal of Immigrant & Minority Health;Jun2015, Vol. 17 Issue 3, p820 

    The immigrant population in Seville has grown over the last 10 years, most of which are Latin Americans. Our aim was to describe the health status perceived in this emerging population. In 2011, a cross-sectional study was performed on a representative sample of 190 Latin American immigrants...

  • Sleep problems, exercise and obesity and risk of chronic musculoskeletal pain: The Norwegian HUNT study. Mork, Paul Jarle; Vik, Kirsti Lund; Moe, Børge; Lier, Ragnhild; Bardal, Ellen Marie; Nilsen, Tom Ivar Lund // European Journal of Public Health;Dec2014, Vol. 24 Issue 6, p923 

    Background: The objective was to investigate the association between self-reported sleep problems and risk of chronic pain in the low back and neck/shoulders, and whether physical exercise and body mass index (BMI) alter this association. Methods: The study comprised data on 26 896 women and men...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics