• 1
    Lane NE. Osteoarthritis of the hip. N Engl J Med 2007; 357: 141321.
  • 2
    Haq I, Murphy E, Dacre J. Osteoarthritis. Postgrad Med J 2003; 79: 37783.
  • 3
    Croft P. The epidemiology of osteoarthritis: Manchester and beyond. Rheumatology (Oxford) 2005; 44 Suppl 4: iv2732.
  • 4
    Felson DT. Osteoarthritis: new insights. Ann Intern Med 2000; 133: 63546.
  • 5
    Yelin E, Murphy L, Cisternas MG, Foreman AJ, Pasta DJ, Helmick CG. Medical care expenditures and earnings losses among persons with arthritis and other rheumatic conditions in 2003, and comparisons with 1997. Arthritis Rheum 2007; 56: 1397407.
  • 6
    Mannoni A, Briganti MP, di Bari M, Ferrucci L, Costanzo S, Serni U, et al. Epidemiological profile of symptomatic osteoarthritis in older adults: a population based study in Dicomano, Italy. Ann Rheum Dis 2003; 62: 5768.
  • 7
    Mazieres B, Garnero P, Gueguen A, Abbal M, Berdah L, Lequesne M, et al. Molecular markers of cartilage breakdown and synovitis at baseline as predictors of structural progression of hip osteoarthritis: the ECHODIAH Cohort. Ann Rheum Dis 2006; 65: 3549.
  • 8
    Dougados M, Gueguen A, Nguyen M, Berdah L, Lequesne M, Mazieres B, et al. Requirement for total hip arthroplasty: an outcome measure of hip osteoarthritis? J Rheumatol 1999; 26: 85561.
  • 9
    Lane NE, Nevitt MC, Hochberg MC, Hung Y, Palermo L. Progression of radiographic hip osteoarthritis over eight years in a community sample of elderly white women. Arthritis Rheum 2004; 50: 147786.
  • 10
    Wilczynski NL, Haynes RB, and the Hedges Team. Developing optimal search strategies for detecting clinically sound prognostic studies in MEDLINE: an analytic survey. BMC Med 2004; 2: 23.
  • 11
    Wilczynski NL, Haynes RB. Optimal search strategies for detecting clinically sound prognostic studies in EMBASE: an analytic survey. J Am Med Inform Assoc 2005; 12: 4815.
  • 12
    Lievense AM, Bierma-Zeinstra SM, Verhagen AP, Verhaar JA, Koes BW. Prognostic factors of progress of hip osteoarthritis: a systematic review. Arthritis Rheum 2002; 47: 55662.
  • 13
    Kuijpers T, van der Windt DA, van der Heijden G, Bouter LM. Systematic review of prognostic cohort studies on shoulder disorders. Pain 2004; 109: 42031.
  • 14
    Scholten-Peeters GG, Verhagen AP, Bekkering GE, van der Windt DA, Barnsley L, Oostendorp RA, et al. Prognostic factors of whiplash-associated disorders: a systematic review of prospective cohort studies. Pain 2003; 104: 30322.
  • 15
    Altman DG. Systematic reviews in health care: systematic reviews of evaluations of prognostic variables. BMJ 2001; 323: 2248.
  • 16
    Portney LG, Watkins MP. Foundations of clinical research: applications to practice. 2nd ed. Upper Saddle River (NJ): Prentice Hall; 2000.
  • 17
    Feinstein AR, Cicchetti DV. High agreement but low κ: I. The problems of two paradoxes. J Clin Epidemiol 1990; 43: 5439.
  • 18
    Phillips B, Ball C, Sackett DL, Badenoch D, Straus S, Haynes B, et al. University of Oxford Centre for Evidence-Based Medicine levels of evidence (May 2001). BJU Int 2007; 100: 975.
  • 19
    Dougados M, Gueguen A, Nguyen M, Berdah L, Lequesne M, Mazieres B, et al. Radiological progression of hip osteoarthritis: definition, risk factors and correlations with clinical status. Ann Rheum Dis 1996; 55: 35662.
  • 20
    Dougados M, Gueguen A, Nguyen M, Berdah L, Lequesne M, Mazieres B, et al. Radiographic features predictive of radiographic progression of hip osteoarthritis. Rev Rhum Engl Ed 1997; 64: 795803.
  • 21
    Gossec L, Tubach F, Baron G, Ravaud P, Logeart I, Dougados M. Predictive factors of total hip replacement due to primary osteoarthritis: a prospective 2 year study of 505 patients. Ann Rheum Dis 2005; 64: 102832.
  • 22
    Maillefert JF, Gueguen A, Monreal M, Nguyen M, Berdah L, Lequesne M, et al. Sex differences in hip osteoarthritis: results of a longitudinal study in 508 patients. Ann Rheum Dis 2003; 62: 9314.
  • 23
    Conrozier T, Saxne T, Fan CS, Mathieu P, Tron AM, Heinegard D, et al. Serum concentrations of cartilage oligomeric matrix protein and bone sialoprotein in hip osteoarthritis: a one year prospective study. Ann Rheum Dis 1998; 57: 52732.
  • 24
    Beattie MS, Lane NE, Hung Y, Nevitt MC. Association of statin use and development and progression of hip osteoarthritis in elderly women. J Rheumatol 2005; 32: 10610.
  • 25
    Chaganti RK, Kelman A, Lui L, Yao W, Javaid MK, Bauer D, et al. Change in serum measurements of cartilage oligomeric matrix protein and association with the development and worsening of radiographic hip osteoarthritis. Osteoarthritis Cartilage 2008; 16: 56671.
  • 26
    Kelman A, Lui L, Yao W, Krumme A, Nevitt M, Lane NE. Association of higher levels of serum cartilage oligomeric matrix protein and N-telopeptide crosslinks with the development of radiographic hip osteoarthritis in elderly women. Arthritis Rheum 2006; 54: 23643.
  • 27
    Lane NE, Nevitt MC, Lui LY, de Leon P, Corr M, for the Study of Osteoporotic Fractures Research Group. Wnt signaling antagonists are potential prognostic biomarkers for the progression of radiographic hip osteoarthritis in elderly Caucasian women. Arthritis Rheum 2007; 56: 331925.
  • 28
    Reijman M, Hazes JM, Bierma-Zeinstra SM, Koes BW, Christgau S, Christiansen C, et al. A new marker for osteoarthritis: cross-sectional and longitudinal approach. Arthritis Rheum 2004; 50: 24718.
  • 29
    Reijman M, Hazes JM, Pols HA, Bernsen RM, Koes BW, Bierma-Zeinstra SM. Role of radiography in predicting progression of osteoarthritis of the hip: prospective cohort study. BMJ 2005; 330: 1183.
  • 30
    Reijman M, Pols HA, Bergink AP, Hazes JM, Belo JN, Lievense AM, et al. Body mass index associated with onset and progression of osteoarthritis of the knee but not of the hip: the Rotterdam Study. Ann Rheum Dis 2007; 66: 15862.
  • 31
    Reijman M, Bierma-Zeinstra SM, Pols HA, Koes BW, Stricker BH, Hazes JM. Is there an association between the use of different types of nonsteroidal antiinflammatory drugs and radiologic progression of osteoarthritis? The Rotterdam Study. Arthritis Rheum 2005; 52: 313742.
  • 32
    Hochberg MC. Do risk factors for incident hip osteoarthritis (OA) differ from those for progression of hip OA? J Rheumatol Suppl 2004; 70: 69.
  • 33
    Ledingham J, Dawson S, Preston B, Milligan G, Doherty M. Radiographic progression of hospital referred osteoarthritis of the hip. Ann Rheum Dis 1993; 52: 2637.
  • 34
    Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics 1977; 33: 15974.
  • 35
    Lane NE, Nevitt M, Williams E, Hochberg MC. Progression of symptomatic and asymptomatic hip OA in a community sample of elderly white women [abstract]. Arthritis Rheum 2000; 43 Suppl: S172.
  • 36
    Hochberg MC, Altman RD, Brandt KD, Clark BM, Dieppe PA, Griffin MR, et al. Guidelines for the medical management of osteoarthritis. Part I. Osteoarthritis of the hip. Arthritis Rheum 1995; 38: 153540.
  • 37
    Weigl M, Angst F, Aeschlimann A, Lehmann S, Stucki G. Predictors for response to rehabilitation in patients with hip or knee osteoarthritis: a comparison of logistic regression models with three different definitions of responder. Osteoarthritis Cartilage 2006; 14: 64151.
  • 38
    Hoeksma HL, Dekker J, Ronday HK, Breedveld FC, van den Ende CH. Manual therapy in osteoarthritis of the hip: outcome in subgroups of patients. Rheumatology (Oxford) 2005; 44: 4614.
  • 39
    Hayden JA, Cote P, Bombardier C. Evaluation of the quality of prognosis studies in systematic reviews. Ann Intern Med 2006; 144: 42737.
  • 40
    National Institute for Health and Clinical Excellence (NICE). Osteoarthritis: the care and management of osteoarthritis in adults, 2008. URL:
  • 41
    Felson DT. Developments in the clinical understanding of osteoarthritis. Arthritis Res Ther 2009: 203. E-pub ahead of print.
  • 42
    Altman RD, Bloch DA, Dougados M, Hochberg M, Lohmander S, Pavelka K, et al. Measurement of structural progression in osteoarthritis of the hip: the Barcelona consensus group. Osteoarthritis Cartilage 2004; 12: 51524.
  • 43
    Botha-Scheepers S, Watt I, Rosendaal FR, Breedveld FC, Hellio le Graverand MP, Kloppenburg M. Changes in outcome measures for impairment, activity limitation, and participation restriction over two years in osteoarthritis of the lower extremities. Arthritis Rheum 2008; 59: 175055.