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  • Original Article
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Hospital admissions associated with body mass index in Canadian adults

International Journal of Obesity volume 31, pages 962–967 (2007)Cite this article

Abstract

Objective:

To examine the associations between excess weight and health-care utilization in general Canadian population.

Design:

A national survey with a multistage stratified sampling design.

Subjects:

A total of 113 603 adults 20 years of age or more in 2003.

Measurements:

Self-reported overnight stay as an in-patient during the past 12 months, length of stay, height and weight.

Results:

The 12-month cumulative incidence of being an in-patient was 6.6% for men and 10.4% for women, with the length of stay in median of 3 nights for the patients. The adjusted odds ratio for obesity associated with being an in-patient was 1.24 (95% confidence interval: 1.109, 1.40) for men and 1.25 (1.14, 1.37) for women. The association between obesity and being an in-patient was significant or marginally significant in all categories of length of stay with an exception of the ‘1 night’ category for men. Underweight men and women had an increased risk of approximately 30%. Underweight was only significantly associated with being an in-patient with a stay of ‘>7 nights’ in both sexes, and only small proportion of participants were underweight. Obesity contributed slightly more than 4% of being an in-patient in the Canadian adults. The population attributable fraction was very small for underweight because of low proportion of cases in that category.

Conclusion:

Obesity burdens the universal health-care system in Canada.

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References

  1. Katzmarzyk PT, Mason C . Prevalence of class I, II and III obesity in Canada. Can Med Assoc J 2006; 174: 156–157.

    Article  Google Scholar 

  2. Katzmarzyk PT . The Canadian obesity epidemic: an historical perspective. Obes Res 2002; 10: 666–674.

    Article  Google Scholar 

  3. Belanger-Ducharme F, Tremblay A . Prevalence of obesity in Canada. Obes Rev 2005; 6: 183–186.

    Article  CAS  Google Scholar 

  4. Tremblay MS, Katzmarzyk PT, Willms JD . Temporal trends in overweight and obesity in Canada, 1981–1996. Int J Obes Relat Metab Disord 2002; 26: 538–543.

    Article  CAS  Google Scholar 

  5. Flegal KM, Carroll MD, Ogden CL, Johnson CL . Prevalence and trends in obesity among US adults, 1999–2000. JAMA 2002; 288: 1723–1727.

    Article  Google Scholar 

  6. Baskin ML, Ard J, Franklin F, Allison DB . Prevalence of obesity in the United States. Obes Rev 2005; 6: 5–7.

    Article  CAS  Google Scholar 

  7. Hedley AA, Ogden CL, Johnson CL, Carroll MD, Curtin LR, Flegal KM . Prevalence of overweight and obesity among US children, adolescents, and adults, 1999–2002. JAMA 2004; 291: 2847–2850.

    Article  CAS  Google Scholar 

  8. Seidell JC . Prevalence and time trends of obesity in Europe. J Endocrinol Invest 2002; 25: 816–822.

    Article  CAS  Google Scholar 

  9. Filozof C, Gonzalez C, Sereday M, Mazza C, Braguinsky J . Obesity prevalence and trends in Latin-American countries. Obes Rev 2001; 2: 99–106.

    Article  CAS  Google Scholar 

  10. Thorburn AW . Prevalence of obesity in Australia. Obes Rev 2005; 6: 187–189.

    Article  CAS  Google Scholar 

  11. Kim DM, Ahn CW, Nam SY . Prevalence of obesity in Korea. Obes Rev 2005; 6: 117–121.

    Article  CAS  Google Scholar 

  12. Liu L, Ikeda K, Chen M, Yin W, Mizushima S, Miki T et al. Obesity, emerging risk in china: trend of increasing prevalence of obesity and its association with hypertension and hypercholesterolaemia among the Chinese. Clin Exp Pharmacol Physiol 2004; 31 (Suppl 2): S8–S10.

    Article  Google Scholar 

  13. Ishikawa-Takata K, Ohta T, Moritaki K, Gotou T, Inoue S . Obesity, weight change and risks for hypertension, diabetes and hypercholesterolemia in Japanese men. Eur J Clin Nutr 2002; 56: 601–607.

    Article  CAS  Google Scholar 

  14. Al-Almaie SM . Prevalence of obesity and overweight among Saudi adolescents in Eastern Saudi Arabia. Saudi Med J 2005; 26: 607–611.

    PubMed  Google Scholar 

  15. Al-Lawati JA, Jousilahti PJ . Prevalence and 10-year secular trend of obesity in Oman. Saudi Med J 2004; 25: 346–351.

    PubMed  Google Scholar 

  16. al-Isa AN . Changes in body mass index (BMI) and prevalence of obesity among Kuwaitis 1980–1994. Int J Obes Relat Metab Disord 1997; 21: 1093–1099.

    Article  CAS  Google Scholar 

  17. Li Z, Bowerman S, Heber D . Health ramifications of the obesity epidemic. Surg Clin North Am 2005; 85: 681–701, v.

    Article  Google Scholar 

  18. Gus M, Fuchs SC, Moreira LB, Moraes RS, Wiehe M, Silva AF et al. Association between different measurements of obesity and the incidence of hypertension. Am J Hypertens 2004; 17: 50–53.

    Article  Google Scholar 

  19. Gregg EW, Cadwell BL, Cheng YJ, Cowie CC, Williams DE, Geiss L et al. Trends in the prevalence and ratio of diagnosed to undiagnosed diabetes according to obesity levels in the US. Diabetes Care 2004; 27: 2806–2812.

    Article  Google Scholar 

  20. Mackin P, Watkinson HM, Young AH . Prevalence of obesity, glucose homeostasis disorders and metabolic syndrome in psychiatric patients taking typical or atypical antipsychotic drugs: a cross-sectional study. Diabetologia 2005; 48: 215–221.

    Article  CAS  Google Scholar 

  21. Pan SY, Johnson KC, Ugnat AM, Wen SW, Mao Y . Association of obesity and cancer risk in Canada. Am J Epidemiol 2004; 159: 259–268.

    Article  Google Scholar 

  22. Sanders MH . Article reviewed: obesity is a risk factor for asthma and wheeze but not airway hyperresponsiveness. Sleep Med 2001; 2: 467–468.

    Article  CAS  Google Scholar 

  23. Kaechele V, Wabitsch M, Thiere D, Kessler AL, Haenle MM, Mayer H et al. Prevalence of gallbladder stone disease in obese children and adolescents: influence of the degree of obesity, sex, and pubertal development. J Pediatr Gastroenterol Nutr 2006; 42: 66–70.

    Article  Google Scholar 

  24. Leveille SG, Wee CC, Iezzoni LI . Trends in obesity and arthritis among baby boomers and their predecessors, 1971–2002. Am J Public Health 2005; 95: 1607–1613.

    Article  Google Scholar 

  25. Arterburn DE, Maciejewski ML, Tsevat J . Impact of morbid obesity on medical expenditures in adults. Int J Obes (London) 2005; 29: 334–339.

    Article  CAS  Google Scholar 

  26. Wee CC, Phillips RS, Legedza AT, Davis RB, Soukup JR, Colditz GA et al. Health care expenditures associated with overweight and obesity among US adults: importance of age and race. Am J Public Health 2005; 95: 159–165.

    Article  Google Scholar 

  27. Schmid A, Schneider H, Golay A, Keller U . Economic burden of obesity and its comorbidities in Switzerland. Soz Praventivmed 2005; 50: 87–94.

    Article  Google Scholar 

  28. Thorpe KE, Florence CS, Howard DH, Joski P . The impact of obesity on rising medical spending. Health Aff (Millwood) 2004; Suppl Web Exclusives: W4-480-6.

  29. Birmingham CL, Muller JL, Palepu A, Spinelli JJ, Anis AH . The cost of obesity in Canada. Can Med Assoc J 1999; 160: 483–488.

    CAS  Google Scholar 

  30. Sokar-Todd HB, Sharma AM . Obesity research in Canada: literature overview of the last 3 decades. Obes Res 2004; 12: 1547–1553.

    Article  Google Scholar 

  31. Payne JN, Coy J, Patterson S, Milner PC . Is use of hospital services a proxy for morbidity? A small area comparison of the prevalence of arthritis, depression, dyspepsia, obesity, and respiratory disease with inpatient admission rates for these disorders in England. J Epidemiol Community Health 1994; 48: 74–78.

    Article  CAS  Google Scholar 

  32. Chen Y, Dales R, Krewski D, Breithaupt K . Increased effects of smoking and obesity on asthma among female Canadians: the National Population Health Survey, 1994–1995. Am J Epidemiol 1999; 150: 255–262.

    Article  CAS  Google Scholar 

  33. Rockhill B, Newman B, Weinberg C . Use and misuse of population attributable fractions. Am J Public Health 1998; 88: 15–19.

    Article  CAS  Google Scholar 

  34. Bertakis KD, Azari R . Obesity and the use of health care services. Obes Res 2005; 13: 372–379.

    Article  Google Scholar 

  35. Quesenberry Jr CP, Caan B, Jacobson A . Obesity, health services use, and health care costs among members of a health maintenance organization. Arch Intern Med 1998; 158: 466–472.

    Article  Google Scholar 

  36. Sturm R . The effects of obesity, smoking, and drinking on medical problems and costs. Health Aff (Millwood) 2002; 21: 245–253.

    Article  Google Scholar 

  37. Raebel MA, Conner DA, Xu S, Porter JA, Lanty FA . Health services use and health care costs of obese and nonobese individuals. Arch Intern Med 2004; 164: 2135–2140.

    Article  Google Scholar 

  38. Trakas K, Lawrence K, Shear NH . Utilization of health care resources by obese Canadians. Can Med Assoc J 1999; 160: 1457–1462.

    CAS  Google Scholar 

  39. Chen Y, Dales R, Krewski D . Asthma and the risk of hospitalization in Canada: the role of socioeconomic and demographic factors. Chest 2001; 119: 708–713.

    Article  CAS  Google Scholar 

  40. Borg S, Persson U, Odegaard K, Berglund G, Nilsson JA, Nilsson PM . Obesity, survival, and hospital costs – findings from a screening project in Sweden. Value Health 2005; 8: 562–571.

    Article  Google Scholar 

  41. Katzmarzyk PT, Janssen I . The economic costs associated with physical inactivity and obesity in Canada: an update. Can J Appl Physiol 2004; 29: 90–115.

    Article  Google Scholar 

  42. Andreyeva T, Sturm R, Ringel JS . Moderate and severe obesity have large differences in health care costs. Obes Res 2004; 12: 1936–1943.

    Article  Google Scholar 

  43. Conway B, Rene A . Obesity as a disease: no lightweight matter. Obes Rev 2004; 5: 145–151.

    Article  CAS  Google Scholar 

  44. Bellanger TM, Bray GA . Obesity related morbidity and mortality. J La State Med Soc 2005; 157; Spec. no. 1:S42–S49; quiz 49.

  45. Ogden CL, Carroll MD, Flegal KM . Epidemiologic trends in overweight and obesity. Endocrinol Metab Clin North Am 2003; 32: 741–760, vii.

    Article  Google Scholar 

  46. Katzmarzyk PT, Ardern CI . Overweight and obesity mortality trends in Canada, 1985–2000. Can J Public Health 2004; 95: 16–20.

    PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada

    Y Chen

  2. Surveillance and Risk Assessment Division, Centre for Chronic Disease Prevention and Control, Public Health Agency of Canada, Ottawa, Ontario, Canada

    Y Jiang & Y Mao

Authors
  1. Y Chen
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  2. Y Jiang
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  3. Y Mao
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Correspondence to Y Chen.

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Chen, Y., Jiang, Y. & Mao, Y. Hospital admissions associated with body mass index in Canadian adults. Int J Obes 31, 962–967 (2007). https://doi.org/10.1038/sj.ijo.0803530

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