• 1
    Felson DT, Naimark A, Anderson JJ, Kazis L, Castelli W, Meenan RF: The prevalence of knee osteoarthritis in the elderly: the Framingham Osteoarthritis Study. Arthritis Rheum 30: 914918, 1987
  • 2
    Guccione AA, Felson DT, Anderson JJ, Anthony JM, Zhang Y, Wilson PWF, Kelly-Hayes M, Wolf PA, Kreger BE, Kannel W: The effects of specific medical conditions on the functional limitations of elders in the Framingham Study. Am J Public Health 84: 351358, 1994
  • 3
    Schouten JSAG: The incidence of risk factors of radiographic osteoarthritis of the knee in the general population. In, A Twelve Year Follow-up Study on Osteoarthritis of the Knee in the General Population (thesis). Rotterdam, the Netherlands, Erasmus University, 1990
  • 4
    Felson DT: The course of osteoarthritis and factors that affect it. Rheum Dis Clin North Am 19: 607615, 1993
  • 5
    Bergstrom G, Bjelle A, Sundh V, Svanborg A: Joint disorders at ages 70, 75 and 79 years: a cross-sectional comparison. Br J Rheumatol 25: 333314, 1986
  • 6
    Bagge E, Bjelle A, Valkenburg HA, Svanborg A: Prevalence of radiographic osteoarthritis in two elderly European populations. Rheumatol Int 12: 3338, 1992
  • 7
    Wilson MG, Michet CJ, Ilstrup DM, Melton LJ: Idiopathic symptomatic osteoarthritis of the hip and knee: a population based incidence study. Mayo Clin Proc 65: 12141221, 1990
  • 8
    Oliveria SA, Felson DT, Reed JI, Cirillo PA, Walker AM: Incidence of symptomatic hand, hip, and knee osteoarthritis among patients in a health maintenance organization. Arthritis Rheum 38: 11341141, 1995
  • 9
    Spector TD, Dacre JE, Harris PA, Huskisson EC: Radiological progression of ostearthritis: an 11-year follow-up study of the knee. Ann Rheum Dis 51: 11071110, 1992
  • 10
    Hernborg JS, Nilsson BE: The natural course of untreated osteoarthritis of the knee. Clin Orthop 123: 130137, 1977
  • 11
    Danielsson L, Hernborg J: Clinical and roentgenologic study of knee joints with osteophytes. Clin Orthop 69: 302312, 1970
  • 12
    Schouten JSAG, van den Ouweland FA, Valkenburg HA: A 12-year follow-up study in the general population on prognostic factors of cartilage loss in osteoarthritis of the knee. Ann Rheum Dis 51: 932937, 1992
  • 13
    Kelsey JL, O'Brien LA, Grisso JA, Hoffman S: Issues in carrying out epidemiologic research in the elderly. Am J Epidemiol 130: 857866, 1989