Overweight and obesity in Australia: the 1999–2000 Australian Diabetes, Obesity and Lifestyle Study (AusDiab)

Adrian J Cameron, Paul Z Zimmet, David W Dunstan, Marita Dalton, Jonathan E Shaw, Timothy A Welborn, Neville Owen, Jo Salmon and Damien Jolley
Med J Aust 2003; 178 (9): 427-432.


Objective: To measure the prevalence of obesity in Australian adults and to examine the associations of obesity with socioeconomic and lifestyle factors.

Design: AusDiab, a cross-sectional study conducted between May 1999 and December 2000, involved participants from 42 randomly selected districts throughout Australia.

Participants: Of 20 347 eligible people aged > 25 years who completed a household interview, 11 247 attended the physical examination at local survey sites (response rate, 55%).

Main outcome measures: Overweight and obesity defined by body mass index (BMI; kg/m2) and waist circumference (cm); sociodemographic factors (including smoking, physical activity and television viewing time).

Results: The prevalence of overweight and obesity (BMI > 25.0 kg/m2; waist circumference > 80.0 cm [women] or > 94.0 cm [men]) in both sexes was almost 60%, defined by either BMI or waist circumference. The prevalence of obesity was 2.5 times higher than in 1980. Using waist circumference, the prevalence of obesity was higher in women than men (34.1% v 26.8%; P < 0.01). Lower educational status, higher television viewing time and lower physical activity time were each strongly associated with obesity, with television viewing time showing a stronger relationship than physical activity time.

Conclusions: The prevalence of obesity in Australia has more than doubled in the past 20 years. Strong positive associations between obesity and each of television viewing time and lower physical activity time confirm the influence of sedentary lifestyles on obesity, and underline the potential benefits of reducing sedentary behaviour, as well as increasing physical activity, to curb the obesity epidemic.

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  • Adrian J Cameron1
  • Paul Z Zimmet2
  • David W Dunstan3
  • Marita Dalton4
  • Jonathan E Shaw5
  • Timothy A Welborn6
  • Neville Owen7
  • Jo Salmon8
  • Damien Jolley9

  • 1 Department of Epidemiology, International Diabetes Institute, Caulfield, VIC.
  • 2 Department of Medicine and Public Health, University of Western Australia, Perth, WA.
  • 3 School of Population Health, University of Queensland, Brisbane, QLD.
  • 4 School of Health Sciences, Deakin University, Burwood, VIC.



We are grateful to the following for their support of the study: the then Commonwealth Department of Health and Aged Care, Eli Lilly (Aust) Pty Ltd, Janssen-Cilag (Aust) Pty Ltd, Abbott Australasia Pty Ltd, Merck-Lipha s.a., Alphapharm Pty Ltd, Merck Sharp & Dohme (Aust), Roche Diagnostics, Servier Laboratories (Aust) Pty Ltd, SmithKline Beecham International, Pharmacia and Upjohn Pty Ltd, BioRad Laboratories Pty Ltd, HITECH Pathology Pty Ltd, the Australian Kidney Foundation, Diabetes Australia (Northern Territory), Queensland Health, South Australian Department of Human Services, Tasmanian Department of Health and Human Services, Territory Health Services, Victorian Department of Human Services and the Health Department of Western Australia.

Competing interests:

None identified.

  • 1. World Health Organization. Obesity — preventing and managing the global epidemic: report of a WHO consultation on obesity. Geneva: WHO, 1998.
  • 2. Flegal KM, Carroll MD, Ogden CL, et al. Prevalence and trends in obesity among US adults, 1999-2000. JAMA 2002; 288: 1723-1727.
  • 3. Hodge A, Dowse G, Toelupe P, et al. Dramatic increase in the prevalence of obesity in Western Samoa over the 13 year period 1978-1991. Int J Obes Relat Metab Disord 1994; 18: 419-428.
  • 4. Dunstan DW, Zimmet PZ, Welborn TA, et al. The rising prevalence of diabetes and impaired glucose tolerance: the Australian Diabetes, Obesity and Lifestyle Study. Diabetes Care 2002; 25: 829-834.
  • 5. Bennett SA, Magnus P. Trends in cardiovascular risk factors in Australia: results from the National Heart Foundation's Risk Factor Prevalence Study, 1980–1989. Med J Aust 1994; 161: 519-527.
  • 6. Australian Bureau of Statistics, Department of Health and Family Services. National Nutrition Survey: selected highlights 1995. Canberra: ABS/DHFS, 1997.
  • 7. Dunstan D, Zimmet P, Welborn T, et al. The Australian Diabetes, Obesity and Lifestyle Study (AusDiab) — methods and response rates. Diabetes Res Clin Pract 2002; 57: 119-129.
  • 8. Australian Bureau of Statistics. Australian standard classification of occupations (ASCO). 2nd edition. Canberra: ABS, 1997. (Catalogue No. 1220.0.)
  • 9. Booth ML, Owen N, Bauman A, et al. Relationship between a 14-day recall measure of leisure-time physical activity and a submaximal test of physical work capacity in a population sample of Australian adults. Res Q Exerc Sport 1996; 67: 221-227.
  • 10. Salmon J, Owen N, Crawford D, et al. Physical activity and sedentary behavior: a population-based study of barriers, enjoyment, and preference. Health Psychol. In press.
  • 11. StataCorp: Stata statistical software, release 6.0. College Station, Tex: StataCorp, 1999.
  • 12. DeVos K, Zaidi M. Equivalence scale sensitivity of poverty statistics for the member states of the European Community. Review Income Wealth 1997; 4319-333.
  • 13. National Heart Foundation of Australia. Risk Factor Prevalence Study No. 1 — 1980. Canberra: NHF, 1980.
  • 14. National Heart Foundation and Australian Institute of Health. Risk Factor Prevalence Study No. 3 — 1989. Canberra: NHF/AIH, 1990.
  • 15. Australian Bureau of Statistics, Department of Health and Family Services. National Nutrition Survey: selected highlights 1995. Canberra: ABS/DHFS, 1997.
  • 16. Joint Health Surveys Unit on behalf of the Department of Health. Health Survey for England — cardiovascular disease 1998. London: The Stationery Office, 1999.
  • 17. Bergmann KE, Mensink GB. Anthropometric data and obesity. Gesundheitswesen 1999; 61(Suppl): S115-S120.
  • 18. Lean M, Han T, Morrison C. Waist circumference as a measure for indicating need for weight management. BMJ 1995; 311: 158-161.
  • 19. Haffner S, Stern M, Hazuda H, et al. Do upper-body and centralized adiposity measure different aspects of regional body-fat distribution? Relationship to non-insulin dependent diabetes mellitus, lipids, and lipoproteins. Diabetes 1987; 36: 43-51.
  • 20. Molarius A, Seidell JC, Sans S, et al. Waist and hip circumferences, and waist-hip ratio in 19 populations of the WHO MONICA Project. Int J Obes Relat Metab Disord 1999; 23: 116-125.
  • 21. Macdonald SM, Reeder BA, Chen Y, et al. Obesity in Canada: a descriptive analysis. Canadian Heart Health Surveys Research Group. CMAJ 1997; 157 Suppl 1: S3-S9.
  • 22. Salmon J, Bauman A, Crawford D, et al. The association between television viewing and overweight among Australian adults participating in varying levels of leisure-time physical activity. Int J Obes Relat Metab Disord 2000; 24: 600-606.
  • 23. Buchowski MS, Sun M. Energy expenditure, television viewing and obesity. Int J Obes Relat Metab Disord 1996; 20: 236-244.
  • 24. Robinson TN. Reducing children's television viewing to prevent obesity: a randomized controlled trial. JAMA 1999; 282: 1561-1567.
  • 25. Cook P, Rutishauser IHE, Seelig M. Comparable data on food and nutrient intake and physical measurements from the 1983, 1985 and 1995 national nutrition surveys. Canberra: Commonwealth Department of Health and Aged Care, 2001.
  • 26. Jeffery RW, French SA. Epidemic obesity in the United States: are fast foods and television viewing contributing? Am J Public Health 1998; 88: 277-280.
  • 27. Ching PL, Willett WC, Rimm EB, et al. Activity level and risk of overweight in male health professionals. Am J Public Health 1996; 86: 25-30.


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