• 1
    Jacobi CE, Triemstra M, Rupp I, Dinant HJ, van den Bos GAM. Health care utilization among rheumatoid arthritis patients referred to a rheumatology center: unequal needs, unequal care? Arthritis Rheum (Arthritis Care Res) 2001; 45: 32430.
  • 2
    Pincus T, Callahan LF, Burkhauser RV. Most chronic diseases are reported more frequently by individuals with fewer than 12 years of formal education in the age 18–64 United States population. J Chronic Dis 1987; 40: 86574.
  • 3
    Pincus T, Callahan LF. Formal education as a marker for increased mortality and morbidity in rheumatoid arthritis. J Chronic Dis 1985; 38: 97384.
  • 4
    Van den Bos GAM. The burden of chronic diseases in terms of disability, use of health care and healthy life expectancies. Eur J Public Health 1995; 5: 2934.
  • 5
    Berkanovic E, Oster P, Wong WK, Bulpitt K, Clements P, Sterz M, et al. The relationship between socioeconomic status and recently diagnosed rheumatoid arthritis. Arthritis Care Res 1996; 9: 25762.
  • 6
    Brekke M, Hjortdahl P, Thelle DS, Kvien TK. Disease activity and severity in patients with rheumatoid arthritis: relations to socioeconomic inequality. Soc Sci Med 1999; 48: 174350.
  • 7
    Callahan LF, Pincus T. Formal education level as a significant marker of clinical status in rheumatoid arthritis. Arthritis Rheum 1988; 31: 134657.
  • 8
    McEntegart A, Morrison E, Capell HA, Duncan MR, Porter D, Madhok R, et al. Effect of social deprivation on disease severity and outcome in patients with rheumatoid arthritis. Ann Rheum Dis 1997; 56: 4103.
  • 9
    Vliet Vlieland TP, Buitenhuis NA, van Zeben D, Vandenbroucke JP, Breedveld FC, Hazes JM. Sociodemographic factors and the outcome of rheumatoid arthritis in young women. Ann Rheum Dis 1994; 53: 8036.
  • 10
    Maiden N, Capell HA, Madhok R, Hampson R, Thomson EA. Does social disadvantage contribute to the excess mortality in rheumatoid arthritis patients? Ann Rheum Dis 1999; 58: 5259.
  • 11
    Wolfe F, Mitchell DM, Sibley JT, Fries JF, Bloch DA, Williams CA, et al. The mortality of rheumatoid arthritis. Arthritis Rheum 1994; 37: 48194.
  • 12
    Blank N, Diderichsen F. Social inequalities in the experience of illness in Sweden: a “double suffering. ” Scand J Soc Med 1996; 24: 819.
  • 13
    Andersen RM. Revisiting the behavioral model and access to medical care: does it matter? J Health Soc Behav 1995; 36: 110.
  • 14
    ERAS Study Group. Socioeconomic deprivation and rheumatoid disease: what lessons for the health service? Ann Rheum Dis 2000; 59: 7949.
  • 15
    Criswell LA, Katz PP. Relationship of education level to treatment received for rheumatoid arthritis. J Rheumatol 1994; 21: 202633.
  • 16
    Breeze E, Sloggett A, Fletcher AE. Socioeconomic status and transitions in status in old age in relation to limiting long-term illnesses measured at the 1991 Census. Eur J Public Health 1999; 9: 26570.
  • 17
    Ross CE, Wu CL. Education, age, and the cumulative advantage in health. J Health Soc Behav 1996; 37: 10420.
  • 18
    Arnett FC, Edworthy SM, Bloch DA, McShane DJ, Fries JF, Cooper NS, et al. The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis. Arthritis Rheum 1988; 31: 31524.
  • 19
    Rupp I, Triemstra M, Boshuizen HC, Jacobi CE, Dinant HJ, Van Den Bos GAM. Selection bias due to non-response in a health survey among patients with rheumatoid arthritis. Eur J Public Health 2002; 12: 1315.
  • 20
    Prevoo ML, van 't Hof MA, Kuper HH, van Leeuwen MA, van de Putte LB, van Riel PL. Modified disease activity scores that include twenty-eight-joint counts: development and validation in a prospective longitudinal study of patients with rheumatoid arthritis. Arthritis Rheum 1995; 38: 448.
  • 21
    Van Gestel AM, Prevoo ML, van 't Hof MA, van Rijswijk MH, van de Putte LB, van Riel PL. Development and validation of the European League Against Rheumatism response criteria for rheumatoid arthritis: comparison with the preliminary American College of Rheumatology and the World Health Organization/International League Against Rheumatism criteria. Arthritis Rheum 1996; 39: 3440.
  • 22
    Van Riel PL, van Gestel AM. Clinical outcome measures in rheumatoid arthritis. Ann Rheum Dis 2000; 59 Suppl 1: i2831.
  • 23
    Bijlsma JWJ, Oude Heuvel CHB, Zaalberg A. Development and validation of the Dutch questionnaire capacities of daily life (VDF) for patients with rheumatoid arthritis. J Rehabil Sci 1990; 3: 714.
  • 24
    Bouma J, Ranchor AV, Sanderman R, van Sonderen E. Assessment of symptoms of depression by means of the CES-D: a manual. [Het meten van symptomen van depressie met de CES-D: Een handleiding. ] Groningen: University of Groningen; 1995.
  • 25
    De Haes JCJM. Kwaliteit van leven van kankerpatiënten. [Quality of life of cancer patients]. Amsterdam: Swets & Zeitlinger; 1988.
  • 26
    Van Riel PLMC, van Gestel AM. Reply to: the original “DAS” and the “DAS28” are not interchangeable: comment on the articles by Prevoo et al. Arthritis Rheum 1998; 41: 9435.
  • 27
    Greenwood MC, Doyle DV, Ensor M. Does the Stanford Health Assessment Questionnaire have potential as a monitoring tool for subjects with rheumatoid arthritis? Ann Rheum Dis 2001; 60: 3448.
  • 28
    Glantz SA. Primer of biostatistics, second edition. New York: McGraw-Hill; 1987.
  • 29
    Statistics Netherlands. Yearbook of statistics. Voorburg: Heerlen; 1998.