Obesity and increased burden of hip and knee joint disease in Australia: Results from a national surveyReport as inadecuate

Obesity and increased burden of hip and knee joint disease in Australia: Results from a national survey - Download this document for free, or read online. Document in PDF available to download.

BMC Musculoskeletal Disorders

, 13:254

First Online: 20 December 2012Received: 05 March 2012Accepted: 17 December 2012


BackgroundResearch involving more representative samples is needed to extend our understanding of the broader impact of obesity in hip or knee joint disease arthritis and OA beyond clinical settings. Although population-based research has been conducted in the United States, how these findings translate to other countries is unclear. Using a national approach, this study explored associations between obesity and the burden of hip and knee joint disease in Australia in terms of prevalence, pain, stiffness, function, Health-Related Quality of Life HRQoL and disease severity.

MethodsA random sample of 5000 Australians ≥39 years from the federal electoral roll was invited to complete a mailed questionnaire to identify doctor-diagnosed hip arthritis, hip OA, knee arthritis and knee OA and evaluate the burden of these conditions. Validated questionnaires included the WOMAC Index, Assessment of Quality of Life instrument and Multi-Attribute Prioritisation Tool. Body Mass Index BMI was classified into underweight-normal weight ≤24.99 kg-m, overweight 25–29.99 or obese ≥30. Multiple logistic regression was used to estimate odds of arthritis and OA, with demographic and socioeconomic variables included in the models. Associations between BMI and other variables were investigated using analysis of covariance, with adjustment for age and sex.

ResultsData were available from 1,157 participants 23%. Overweight participants had increased odds of knee arthritis adjusted OR AOR 1.87, 95%CI 1.14-3.07 and knee OA AOR 2.11, 95%CI 1.07-4.15. Obesity was associated with higher prevalence of hip arthritis AOR 2.18, 95%CI 1.17-4.06, knee arthritis AOR 5.47, 95%CI 3.35-8.95 and knee OA AOR 7.35, 95%CI 3.85-14.02. Of those with arthritis or OA, obese individuals reported more pain for hip arthritis, hip OA and knee OA, greater stiffness for hip arthritis, knee arthritis and knee OA, worse function all diagnoses, lower HRQoL for hip arthritis and hip OA and greater disease severity all diagnoses.

ConclusionsThis national study has demonstrated that the odds of arthritis and OA was up to 7 times higher for obese individuals, compared with those classified as underweight-normal weight. Concurrent obesity and joint disease had a marked impact on several key aspects of wellbeing, highlighting the need for public health interventions.

KeywordsObesity Osteoarthritis Quality of Life Health status AbbreviationsANCOVAAnalysis of covariance

AORAdjusted odds ratio

AQoLAssessment of Quality of Life instrument

BMIBody Mass Index

HRQoLHealth-Related Quality of Life

MAPTMulti-Attribute Prioritisation Tool


OROdds ratio

WOMACWestern Ontario and McMaster Universities Osteoarthritis Index.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2474-13-254 contains supplementary material, which is available to authorized users.

Download fulltext PDF

Author: Ilana N Ackerman - Richard H Osborne

Source: https://link.springer.com/

Related documents