References
- Kvien TK. Epidemiology and burden of illness of rheumatoid arthritis. Pharmacoeconomics 2004;22:1-12
- Helmick CG, Felson DT, Lawrence RC, et al. Estimates of the prevalence of arthritis and other rheumatic conditions in the United States. Part I. Arthritis Rheum 2008;58:15-25
- Centers for Disease Control and Prevention (CDC). Rheumatoid arthritis. Available at: http://www.cdc.gov/arthritis/basics/rheumatoid.htm [last accessed 4 March 2010]
- Dickens C, McGowan L, Clark-Carter D, et al. Depression in rheumatoid arthritis: a systematic review of the literature with meta-analysis. Psychosom Med 2002;64:52-60
- Bruce TO. Comorbid depression in rheumatoid arthritis: pathophysiology and clinical implications. Curr Psychiatry Rep 2008;10:258-64
- Ozcetin A, Ataoglu S, Kocer E, et al. Effects of depression and anxiety on quality of life of patients with rheumatoid arthritis, knee osteoarthritis and fibromyalgia syndrome. West Indian Med J 2007;56:122-9
- Covic T, Tyson G, Spencer D, et al. Depression in rheumatoid arthritis patients: demographic, clinical, and psychological predictors. J Psychosom Res 2006;60:469-76
- Odegard S, Finset A, Mowinckel P, et al. Pain and psychological health status over a 10-year period in patients with recent onset rheumatoid arthritis. Ann Rheum Dis 2007;66:1195-201
- Michaud K, Wolfe F. Comorbidities in rheumatoid arthritis. Best Pract Res Clin Rheumatol 2007;21:885-906
- Garcia-Poma A, Segami MI, Mora CS, et al. Obesity is independently associated with impaired quality of life in patients with rheumatoid arthritis. Clin Rheumatol 2007;26:1831-5
- Costenbader KH, Feskanich D, Mandl LA, et al. Smoking intensity, duration, and cessation, and the risk of rheumatoid arthritis in women. Am J Med 2006;119:503.e1-9
- Jacobi CE, Mol GD, Boshuizen HC, et al. Impact of socioeconomic status on the course of rheumatoid arthritis and on related use of health care services. Arthritis Rheum 2003;49:567-73
- Hochberg MC, Chang RW, Dwosh I, et al. The American College of Rheumatology 1991 revised criteria for the classification of global functional status in rheumatoid arthritis. Arthritis Rheum 1992;35:498-502
- Shih M, Hootman JM, Strine TW, et al. Serious psychological distress in U.S. adults with arthritis. J Gen Intern Med 2006;21:1160-6
- MEPS-HC Sample Design and Collection Process. Agency for Healthcare Research and Quality, Rockville, Md. Available at: http://www.meps.ahrq.gov/survey_comp/hc_data_collection.jsp [Last accessed 2 February 2009]
- Machlin S, Yu W, Zodet M. Computing Standard Errors for MEPS Estimates. January 2005. Agency for Healthcare Research and Quality, Rockville, Md. Available at: http://www.meps.ahrq.gov/survey_comp/standard_errors.jsp [Last accessed 10 February 2009]
- McCormick MC, Kass B, Elixhauser A, et al. Annual report on access to and utilization of health care for children and youth in the United States – 1999. Pediatrics 2000;105:219-30
- Kroenke K, Spitzer RL, Williams JB. The Patient Health Questionnaire-2: validity of a two-item depression screener. Med Care 2003;41:1284-92
- Belialov FI. Psychosomatic associations in internal diseases. Part II. Klin Med 2007;85:20-3
- D’Hoore W, Sicotte C, Tilquin C. Risk adjustment in outcome assessment: the Charlson comorbidity index. Methods Inf Med 1993;32:382-7
- Rao J.N.K., Thomas D.R. Analysis of Categorical Response Data from Complex Surveys: An Appraisal and Update. In: Analysis of Survey Data Chambers R.L., Skinner C. J., editors. England: John Wiley & Sons, Ltd; 2003. p. 85
- Hosmer D, Stanley L. Applied Logistic Regression, 2nd Edn. New York: John Wiley & Sons, Inc., 2000
- Liang J, Shaw BA, Krause N, et al. How does self-assessed health change with age? A study of older adults in Japan. J Gerontol B Psychol Sci Soc Sci 2005;60:S224-32
- Heller DA, Ahern FM, Pringle KE, et al. Among older adults, the responsiveness of self-rated health to changes in Charlson comorbidity was moderated by age and baseline comorbidity. J Clin Epidemiol 2009;62:177-87
- D’Hoore W, Bouckaert A, Tilquin C. Practical considerations on the use of the Charlson comorbidity index with administrative data bases. J Clin Epidemiol 1996;49:1429-33
- Schnittker J. When mental health becomes health: age and the shifting meaning of self-evaluations of general health. Milbank Q. 2005;83:397-423