HealthStats NSW

Overweight and obesity in adults

Overweight, 2013
32.5Overweight, 2012
32.7Overweight, 2011
32.7Overweight, 2010
32.8Overweight, 2009
32.8Overweight, 2008
32.7Overweight, 2007
32.6Overweight, 2006
32.5Overweight, 2005
32.4Overweight, 2004
32.2Overweight, 2003
31.9Overweight, 2002
31.7Obese, 2013
19.2Obese, 2012
19.3Obese, 2011
19.3Obese, 2010
19.1Obese, 2009
18.8Obese, 2008
18.5Obese, 2007
18Obese, 2006
17.4Obese, 2005
16.8Obese, 2004
16.2Obese, 2003
15.5Obese, 2002
14.8Overweight or obese, 2013
51.7Overweight or obese, 2012
52Overweight or obese, 2011
52Overweight or obese, 2010
51.9Overweight or obese, 2009
51.6Overweight or obese, 2008
51.2Overweight or obese, 2007
50.6Overweight or obese, 2006
50Overweight or obese, 2005
49.2Overweight or obese, 2004
48.3Overweight or obese, 2003
47.4Overweight or obese, 2002
46.4
  • + Source

    NSW Population Health Survey (SAPHaRI). Centre for Epidemiology and Evidence, NSW Ministry of Health.

  • + Notes

    Smoothed estimates are shown in the graph. Actual estimates are shown in the table. Smoothed estimates have been derived from the actual estimates, that were statistically adjusted to minimise random variation from year to year and provide more stable smoothed estimates for population health planning and monitoring.

    The indicator shows self-reported data collected through Computer Assisted Telephone Interviewing (CATI). Estimates were weighted to adjust for differences in the probability of selection among respondents and were benchmarked to the estimated residential population using the latest available Australian Bureau of Statistics mid-year population estimates.

    Mobile phone numbers have been included since the 2012 survey (using an overlapping dual-frame design) because of diminishing coverage of the population by landline sampling frames (<85 % since 2010). Associations between mobile-only phone users and some health indicators, even after adjusting for age, sex and region, were observed in 2012. Thus significant differences that were observed between 2011 and 2012 should be reported with caution, as they will reflect both real and design changes. LL/UL 95%CI = lower and upper limits of the 95% confidence interval for the point estimate.

  • + Data Table
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  • + Methods
  • + Codes
  • + Related Indicators
     

    Body mass index by category

    Number and proportion, smoothed and actual, by category of Body Mass Index, sex and year.
     
  • + Associated Information
    • Key points: Overweight and obesity

      Latest available information

      Latest available data for adults in NSW:

        • 52.5% of adults aged 16 years and over (58.8% of men and 46.1% of women) were overweight or obese as estimated from the 2014 NSW Adult Population Health Survey (self reported using Computer Assisted Telephone Interviewing or CATI).

        • 61.1% of persons aged 18 years and over (68.3% of males and 53.7% of females) in NSW were overweight or obese, as estimated from the 2011-12 Australian Health Survey (Interviewer administered questionnaire and measured weight and height).

      Latest available data for secondary school student in NSW:

        • 20.4% of students aged 12-17 years (25.5% of boys and 14.2% of girls) were overweight or obese as estimated from the 2011 NSW School Students Health Behaviours Survey (self completed questionnaire).

        • 22.8% of students in years K, 2, 4, 6 and 10 (24.0% of boys and 21.5% of girls) were overweight or obese as estimated from the 2010 NSW Schools Physical Activity and Nutrition Survey (measured).

      Latest available data for children in NSW:

        • 22.8% of students in years K, 2, 4, 6 and 10 (24.0% of boys and 21.5% of girls) were overweight or obese as estimated from the 2010 NSW Schools Physical Activity and Nutrition Survey (measured).

        • 27.7% of children aged 5-16 years (30.0% of boys and 25.2% of girls) were overweight or obese as estimated from the 2014 NSW Population Health Survey (parent-reported using CATI).

        • 25.6% of children aged 5-17 years were overweight or obese as estimated from the 2011-12 Australian Health Survey (measured).

      Latest available data for adult Aboriginal persons in NSW

        • 57.4% of Aboriginal adults aged 16 years and over were overweight or obese as estimated from the 2014 NSW Adult Population Health Survey (self reported using CATI).

      Overall trends in NSW

      Self reported data on overweight and obesity have been collected for adults in NSW since 1997 through the NSW Population Health Survey and since 1977-78 through the Australian Health Surveys, National Health Surveys (from 1995). Measured data on overweight and obesity have been collected for adults in NSW through the National Nutrition Survey (1995) and the Australian and National Health Survey (2011-12 and 2007-08 respectively).

      Self reported data on overweight and obesity have been collected for students in NSW since 2005 through the NSW School Students Health Behaviours Survey and measured data on overweight and obesity have been collected for students in NSW since 1985 through the Australian Health and Fitness Survey and the NSW Schools Fitness and Physical Activity Survey (1997) and the NSW Schools Physical Activity and Nutrition Survey (2004 and 2010).

      Parent reported data on overweight and obesity have been collected for children in NSW since 2007 through the NSW Population Health Survey. Measured data on overweight and obesity have been collected for children in NSW since 2008 through the National Health Survey.

      Prevalence estimates, although differing slightly between surveys because of different sampling frames, participation rates and modes of collection (telephone versus self completed questionnaires versus face to face personal interview versus measured) have all been increasing over time although the rate of increase has lessened.

      Hospitalisations attributable to high body mass

      A total of 39,289 hospitalisations were attributed to high body mass in NSW in 2013-14, which was approximately 1.3% of all hospitalisations. The rate of hospitalisations attributed to high body mass decreased by more than 18% in the decade up to 2012-13. This was chiefly due to the rate decreasing by more than 20% between 2009-10 and 2011-12 caused by a change in coding of diabetes in hospital data. This coding change was implemented in NSW hospitals on 1 July 2010. In the decade up to 2009-10, the rate of hospitalisation attributable to high body mass increased by 8% in NSW. The hospitalisation rate in males was 40% greater than the rate in females throughout the decade.

      Deaths attributable to high body mass

      A total of 2,685 deaths were estimated to be caused by high body mass in NSW in 2012, which was approximately 5.5% of all deaths. The rate of death attributed to high body mass has decreased in the decade up to 2011 and the decline was similar in males and females.

      References

      Australian Bureau of Statistics. National Health Survey: Summary of Results. Cat no 4362.0. State Tables, 2007-2008. Available at: http://www.abs.gov.au/ausstats/abs@.nsf/mf/4364.0

      Booth M, Macaskill P, McLellan L, Phongsavan P, Okely AD, Patterson J. NSW Schools Fitness and Physical Activity Survey. Sydney: NSW Department of School Education, 1997.

      Centre for Epidemiology and Evidence. NSW Adult Population Health Survey. NSW Ministry of Health. Available at http://www.health.nsw.gov.au/publichealth/surveys/index.asp

      Centre for Epidemiology and Evidence. NSW Child Population Health Survey. NSW Ministry of Health. Available at: http://www.health.nsw.gov.au/publichealth/surveys/index.asp

      Centre for Epidemiology and Evidence. NSW School Students Health Behaviours Survey. NSW Ministry of Health. Available at: http://www.health.nsw.gov.au/publichealth/surveys/index.asp

      Pyke JE. The Australian Health and Fitness Survey 1985: The fitness, health and physical performance of Australian school students aged 7-15 years. Adelaide: The Australian Council for Health, Physical Education and Recreation (ACHPER), 1987.

      Hardy L. SPANS 2010 - NSW Schools Physical Activity and Nutrition Survey - Executive Summary. Sydney: University of Sydney, 2012.

      Department of Health and Ageing. 2007 Australian National Child Nutrition and Physical Activity Survey. Available at: http://www.health.gov.au/internet/main/publishing.nsf/Content/phd-nutrition-childrens-survey-keyfindings)

    • Introduction: Overweight and obesity

      High body weight as a health risk factor

      There are health problems associated with being either underweight or over weight. Although underweight can be a serious risk to health (leading to malnutrition and other health problems such as osteoporosis), public health focus is on excess body weight, as this is a much greater problem in the Australian population (AIHW Cat. no. AUS 122 2010)

      Excess weight, especially obesity, is a risk factor for cardiovascular disease, Type 2 diabetes, some musculoskeletal conditions and some cancers. As the level of excess weight increases, so does the risk of developing these conditions. In addition, being overweight can hamper the ability to control or manage chronic disorders (AIHW Cat. no. AUS 122 2010)

      Excess weight in children increases the risk of poor health, both during childhood and later in adulthood. Children who are overweight or obese are at greater risk of developing chronic conditions such as asthma and Type 2 diabetes; and may experience negative social and mental wellbeing (AIHW Cat. no. AUS 122 2010).

      Body Mass Index (BMI)

      Body mass is derived from a person's weight and height. The Body Mass Index (BMI) is the weight in kilograms divided by the square of the height in metres (kg/m2). A person considered overweight or obese has a BMI of at least 25 kg/m2. For more details on the BMI, see the Methods section.

      Burden of disease due to overweight and obesity in the world and in Australia

      Previously considered a problem in high-income countries, overweight and obesity are now also on the rise in low- and middle-income countries, especially in urban areas. The World Health Organization has estimated that by 2015 there will be 2.3 billion adults who are overweight, and more than 700 million who will be obese (World Health Organization 2006).

      In Australia in 2003, high body mass was responsible for 7.5% of the total burden of disease with Type 2 diabetes and ischaemic heart disease accounting for almost three-quarters of this burden (Begg et al. 2007)

      References

      Australian Institute of Health and Welfare. Australia’s health 2010. Australia’s health series no. 12. Cat. no. AUS 122. Canberra: AIHW, 2010. Available at http://www.aihw.gov.au/publication-detail/?id=6442468376

      Begg S, Vos T, Barker B. The burden of disease and injury in Australia, 2003. Cat. no. PHE 82 edition. Canberra: AIHW, 2007. http://www.aihw.gov.au/publication-detail/?id=6442467990

      World Health Organization. Obesity and overweight. Fact sheet no. 311. Geneva: WHO, 2006. Available at http://www.who.int/mediacentre/factsheets/fs311/en/index.html

    • Interventions: Preventive health

      The NSW Healthy Eating and Active Living Strategy 2013-2018 provides a whole of government framework to promote and support healthy eating and active living in NSW and to reduce the impact of lifestyle-related chronic disease.

      The Strategy has four key strategic directions:

      • • Environments to support healthy eating and active living;
      • • State-wide healthy eating and active living support programs;
      • • Healthy eating and active living advice as part of routine service delivery; and
      • • Education and information to enable informed, healthy choices.
    • For more information: Overweight and obesity

      Useful websites include:

      Australian Bureau of Statistics at http://www.abs.gov.au

      Australian Institute of Health and Welfare at http://www.aihw.gov.au

      healthdirect at http://www.healthdirect.gov.au

      National Health and Medical Research Council. Clinical practice guidelines for the management of overweight and obesity in adults, adolescents and children in Australia. Melbourne: National Health and Medical Research Council, 2013.http://www.nhmrc.gov.au/_files_nhmrc/publications/attachments/n57_obesity_guidelines_130531.pdf

      NSW Department of Education and Training and NSW Ministry of Health. Live Life Well @ School. NSW Department of Education and Training & NSW Department of Health website. Available at http://www.healthykids.nsw.gov.au/teachers-childcare/live-life-well-@-school.aspx/index.htm

      NSW Government. Good for kids. Good for life. Available at http://www.goodforkids.nsw.gov.au/Parents

      NSW Government: NSW Ministry of Health, NSW Department of Education and Training, Sport and Recreation, a division of Communities NSW and the Heart Foundation. Munch and Move. NSW Government website. Available at http://www.healthykids.nsw.gov.au/campaigns-programs/about-munch-move.aspx

      NSW Ministry of Health. Healthy Eating Active Living. Available at http://www.health.nsw.gov.au/heal/pages/default.aspx.