• 1
    Murphy L, Schwartz TA, Helmick CG, Renner JB, Tudor G, Koch G, et al.Lifetime risk of symptomatic knee osteoarthritis.Arthritis Rheum2008;59:120713.
  • 2
    Murphy LB, Helmick CG, Schwartz TA, Renner JB, Tudor G, Koch GG, et al.One in four people may develop symptomatic hip osteoarthritis in his or her lifetime.Osteoarthritis Cartilage2010;18:13729.
  • 3
    Culliford DJ, Maskell J, Kiran A, Judge A, Javaid MK, Cooper C, et al.The lifetime risk of total hip and knee arthroplasty: results from the UK general practice research database.Osteoarthritis Cartilage2012;20:51924.
  • 4
    Weinstein AM, Rome BN, Reichmann WM, Collins JE, Burbine SA, Thornhill TS, et al.Estimating the burden of total knee replacement in the United States.J Bone Joint Surg2013;95:38592.
  • 5
    Ackerman IN, Busija L.Access to self-management education, conservative treatment and surgery for arthritis according to socioeconomic status.Best Pract Res Clin Rheumatol2012;26:56183.
  • 6
    Hawker GA, Wright JG, Glazier RH, Coyte PC, Harvey B, Williams JI, et al.The effect of education and income on need and willingness to undergo total joint arthroplasty.Arthritis Rheum2002;46:33319.
  • 7
    Dixon T, Shaw M, Ebrahim S, Dieppe P.Trends in hip and knee joint replacement: socioeconomic inequalities and projections of need.Ann Rheum Dis2004;63:82530.
  • 8
    Dixon T, Shaw ME, Dieppe PA.Analysis of regional variation in hip and knee joint replacement rates in England using Hospital Episodes Statistics.Public Health2006;120:8390.
  • 9
    Skinner J, Weinstein JN, Sporer SM, Wennberg JE.Racial, ethnic, and geographic disparities in rates of knee arthroplasty among Medicare patients.N Engl J Med2003;349:13509.
  • 10
    Australian Bureau of Statistics.3101.0 Australian demographic statistics.Canberra:ACT;2012.
  • 11
    Australian Bureau of Statistics.3235.0: population by age and sex, regions of Australia,2010.Canberra:Australian Bureau of Statistics; 2011.
  • 12
    Australian Bureau of Statistics.Technical paper census of population and housing: Socio-Economic Index for Areas (SEIFA).Canberra:Australian Bureau of Statistics;2004.
  • 13
    Australian Bureau of Statistics.Population estimates by remoteness area, 2001 to 2010: report 3218.0.Canberra:Australian Bureau of Statistics;2011.
  • 14
    Australian Bureau of Statistics.3302.2.55.001 life tables, Victoria, 2007-2009.Canberra:Australian Bureau of Statistics;2010.
  • 15
    Roberts RF, Innes KC, Walker SM.Introducing ICD-10-AM in Australian hospitals.Med J Aust1998;169 Suppl:S325.
  • 16
    Preen DB, Holman CD, Spilsbury K, Semmens JB, Brameld KJ.Length of comorbidity lookback period affected regression model performance of administrative health data.J Clin Epidemiol2006;59:9406.
  • 17
    Australian Orthopaedic Association National Joint Replacement Registry.Annual report.Adelaide:Australian Orthopaedic Association;2012.
  • 18
    DoctorConnect. District of workforce shortage.2013. URL:
  • 19
    Blagojevic M, Jinks C, Jeffery A, Jordan KP.Risk factors for onset of osteoarthritis of the knee in older adults: a systematic review and meta-analysis.Osteoarthritis Cartilage2010;18:2433.
  • 20
    Gardner W, Mulvey EP, Shaw EC.Regression analyses of counts and rates: Poisson, overdispersed Poisson, and negative binomial models.Psychol Bull1995;118:392404.
  • 21
    Greenland S, Rothman D. Introduction to categorical statistics. In: Rothman KJ, Greenland S, Lash TL, editors.Modern epidemiology. 3rd ed.Philadelphia:Lippincott, Williams and Wilkins;1998. p.23857.
  • 22
    Ackerman IN, Dieppe PA, March LM, Roos EM, Nilsdotter AK, Brown GC, et al.Variation in age and physical status prior to total knee and hip replacement surgery: a comparison of centers in Australia and Europe.Arthritis Rheum2009;61:16673.
  • 23
    Dieppe P, Judge A, Williams S, Ikwueke I, Guenther KP, Floeren M, et al.Variations in the pre-operative status of patients coming to primary hip replacement for osteoarthritis in European orthopaedic centres.BMC Musculoskelet Disord2009;10:19.
  • 24
    Colombo F, Tapay N.Private health insurance in OECD countries: the benefits and costs for individuals and health systems.Paris:Organisation for Economic Co-operation and Development;2004.
  • 25
    Blumenthal D, Dixon J.Health-care reforms in the USA and England: areas for useful learning.Lancet2012;380:13527.
  • 26
    Andrew NE, Gabbe BJ, Wolfe R, Cameron PA.Trends in sport and active recreation injuries resulting in major trauma or death in adults in Victoria, Australia, 2001-2007.Injury2012;43:152733.
  • 27
    Tjoumakaris FP, Van Kleunen J, Weidner Z, Huffman GR.Knee sports injury is associated with an increased prevalence of unilateral knee replacement: a case-controlled study.J Knee Surg2012;25:4036.
  • 28
    Hart DJ, Doyle DV, Spector TD.Incidence and risk factors for radiographic knee osteoarthritis in middle-aged women: the Chingford Study.Arthritis Rheum1999;42:1724.
  • 29
    Grotle M, Hagen KB, Natvig B, Dahl FA, Kvien TK.Obesity and osteoarthritis in knee, hip and/or hand: an epidemiological study in the general population with 10 years follow-up.BMC Musculoskelet Disord2008;9:132.
  • 30
    Wang Y, Wluka AE, Simpson JA, Giles GG, Graves SE, de Steiger RN, et al.Body weight at early and middle adulthood, weight gain and persistent overweight from early adulthood are predictors of the risk of total knee and hip replacement for osteoarthritis.Rheumatology (Oxford)2013;52:103341.
  • 31
    Bohensky MA, Sundararajan V, Andrianopoulos N, de Steiger RN, Bucknill A, Kondogiannis CM, et al.Trends in elective knee arthroscopies in a population-based cohort, 2000-2009.Med J Aust2012;197:399403.
  • 32
    Australian Bureau of Statistics.Private health insurance: a snapshot, 2004-05. Report no. 4815.0.55.001. :Canberra: Australian Bureau of Statistics;2006.
  • 33
    Australian Institute of Health and Welfare (AIHW).Waiting times for elective surgery in Australia 1999-00: AIHW cat. no.HSE 18. Canberra:AIHW (Health Services Series no. 18);2001.
  • 34
    Australian Institute of Health and Welfare (AIHW).Australian hospital statistics 2008-09. Health services series no.17. Cat. no. HSE 84. Canberra:AIHW;2010.
  • 35
    Judge A, Welton NJ, Sandhu J, Ben-Shlomo Y.Equity in access to total joint replacement of the hip and knee in England: cross sectional study.BMJ2010;341:c4092.
  • 36
    Rahman MM, Kopec JA, Sayre EC, Greidanus NV, Aghajanian J, Anis AH, et al.Effect of sociodemographic factors on surgical consultations and hip or knee replacements among patients with osteoarthritis in British Columbia, Canada.J Rheumatol2011;38:5039.
  • 37
    Dixon T, Urquhart DM, Berry P, Bhatia K, Wang Y, Graves S, et al.Variation in rates of hip and knee joint replacement in Australia based on socio-economic status, geographical locality, birthplace and indigenous status.ANZ J Surg2011;81:2631.
  • 38
    Steel N, Melzer D, Gardener E, McWilliams B.Need for and receipt of hip and knee replacement: a national population survey.Rheumatology (Oxford)2006;45:143741.
  • 39
    Australian Bureau of Statistics.3235.0: population by age and sex, regions of Australia, 2008,Canberra:ACT;2009.
  • 40
    McCracken K.Into a SEIFA SES cul-de-sac?Aust N Z J Public Health2001;25:3056.
  • 41
    Quan H, Parsons GA, Ghali WA.Validity of information on comorbidity derived from ICD-9-CCM administrative data.Med Care2002;40:67585.
  • 42
    Walls HL, Magliano DJ, Stevenson CE, Backholer K, Mannan HR, Shaw JE, et al.Projected progression of the prevalence of obesity in Australia.Obesity (Silver Spring)2012;20:8728.