1. Lawrence RC, Felson DT, Helmick CG, Arnold LM, Choi H, Deyo RA, et al. Estimates of the prevalence of arthritis and other rheumatic conditions in the United States: Part II. Arthritis Rheum. 2008; 58(1): 26-35. [DOI:10.1002/art.23176]

2. Tobón GJ, Youinou P, Saraux A. The environment, geo-epidemiology, and autoimmune disease: Rheumatoid arthritis. J Autoimmun. 2010; 35(1): 10-4. [DOI:10.1016/j.jaut.2009.12.009]

3. Kanecki K, Tyszko P, Wisłowska M, Łyczkowska-Piotrowska J. Preliminary report on a study of health-related quality of life in patients with rheumatoid arthritis. Rheumatol Int. 2013; 33(2): 429-34. [DOI:10.1007/s00296-012-2421-5]

4. Chen S, Wang H. The relationship between physical function, knowledge of disease, social support and self-care behavior in patients with rheumatoid arthritis. J Nurs Res. 2007; 15(3): 83-92. [DOI:10.1097/01.JNR.0000387614.87683.5a]

5. Goes ACJ, Reis L, Silva MBG, Kahlow B, Skare TL. Rheumatoid arthritis and sleep quality. Revista Brasileira de Reumatologia. 2017; 57(4): 294-8. [DOI:10.1016/j.rbr.2016.06.002]

6. Cox SR, McWilliams L, Massy-Westropp N, Meads DM, McKenna SP, Proudman S. Adaptation of the RA QoL for use in Australia. Rheumatology International. 2007; 27: 661-6. [DOI:10.1007/s00296-006-0287-0]

7. Michaud K, Wolfe F. Comorbidities in rheumatoid arthritis. Best Practice & Research Clinical Rheumatology. 2007; 21(5): 885-906. [DOI:10.1016/j.berh.2007.06.002]

8. Morowatisharifabad M, Nadrian H, Soleimani Salehabadi H, Mazloomy Mahmoodabad SMA. The Relationship between Predisposing Factors and Self-care Behaviors among Patients with Rheumatoid Arthritis. Journal of Hayat. 2009; 15(3): 39-51.

9. Davatchi F, Sandoughi M, Moghimi N, Jamshidi A, Tehrani Banihashemi A, Zakeri Z, et al. Epidemiology of rheumatic diseases in Iran from analysis of four COPCORD studies. International Journal of Rheumatic Diseases. 2016; 19(11): 1056-62. [DOI:10.1111/1756-185X.12809]

10. Pakpour AH, Zeidi IM, Hashemi F, Saffari M, Burri A. Health-related quality of life in young adult patients with rheumatoid arthritis in Iran: reliability and validity of the Persian translation of the PedsQL™ 4.0 generic core scales young adult version. Clinical Rheumatology. 2013; 32(1): 15-22. [DOI:10.1007/s10067-012-2084-3]

11. Pacheco-Tena C, Reyes-Cordero G, Mckenna SP, Ríos-Barrera VA. Adaptación y validación del Rheumatoid Arthritis Quality of Life Scale (RAQoL) al español de México. Reumatologia Clinica. 2011; 7(2): 98-103. [DOI:10.1016/j.reuma.2010.02.002]

12. Razavian F, Abbasi M, Kazemnejad A. The relationship between depression and the quality of life in patients with rheumatoid arthritis. Daneshvar Medicine. 2009; 16(80): 27-34.

13. King IM. Quality of life and goal attainment. Nursing Science Quarterly. 1994; 7(1): 29-32. [DOI:10.1177/089431849400700110]

14. Jain A, Bhadauria D. Evaluation of efficacy of fluoxetine in the management of major depression and arthritis in patients of Rheumatoid Arthritis. Indian Journal of Rheumatology. 2013; 8(4): 165-9. [DOI:10.1016/j.injr.2013.08.001]

15. M. V, M. N. Prediction of depression and sleep quality based on thought rumination and its components (inhibition and reflection) in patients with Rheumatoid arthritis. Journal of Thought & Behavior in Clinical Psychology. 2016; 9(41): 47-56.

16. 16 .Mardani Hamouleh M, Shahraki Vahed A, Moshtagh Eshgh Z. Assessment of the relationship between mental health and job stress among nurses. Pars Journal of Medical Sciences. 2010; 8(2): 35-40. [DOI:10.29252/jmj.8.2.35]

17. Lawrence A, Aggarwal A. Depression in rheumatoid arthritis: An under-recognized comorbidity. Indian Journal of Rheumatology. 2013; 4(8): 153-4. [DOI:10.1016/j.injr.2013.09.005]

18. DiMatteo MR, Lepper HS, Croghan TW. Depression is a risk factor for noncompliance with medical treatment: meta-analysis of the effects of anxiety and depression on patient adherence. Archives of Internal Medicine. 2000; 160(14): 2101-7. [DOI:10.1001/archinte.160.14.2101]

19. Sajadi H, Biglarian A. The quality of life of the elderly woman in the Kahrizak charity nursing home. Payesh. 2004; 5(2): 105-8.

20. Karimlou M, Salehi M, Zayeri F, Massah O, Hatami A, Moosavy Khatat M. Developing the persian version of the world health organization quality of life 100- questionnaire. Archives of Rehabilitation. 2011; 11(4): 73-82.

21. Gill TM, Feinstein AR. A critical appraisal of the quality of quality-of-life measurements. Jama. 1994; 272(8): 619-26. [DOI:10.1001/jama.1994.03520080061045]

22. Omidi A, Momeni J, Raygan F, Akbari H, Talighi E. The effectiveness of mindfulness-based stress reduction program on quality of life among patients with cardiovascular diseases. Journal of Thought & Behavior in Clinical Psychology. 2017; 10(42): 7-16.

23. Izadi S, Neamat Tavousi M. The effectiveness of mindfulness therapy in quality of life among patients with MS. Journal of Thought & Behavior in Clinical Psychology. 2017; 11(42): 37-46.

24. Garip Y, Eser F, Bodur H. Health-related quality of life in rheumatoid arthritis: comparison of RAQoL with other scales in terms of disease activity, severity of pain, and functional status. Rheumatology International. 2011; 31(6): 769-72. [DOI:10.1007/s00296-009-1353-1]

25. Haroon N, Aggarwal A, Lawrence A, Agarwal V, Misra R. Impact of rheumatoid arthritis on quality of life. Modern Rheumatology. 2007; 17(4): 290-5. [DOI:10.3109/s10165-007-0604-9]

26. 26 .Zlatkovic-Svenda M, Rouse M, Radak-Perovic M, Stojanovic R, Vujasinovic-Stupar N, Lazovic-Popovic B, et al. Adaptation and validation of the Rheumatoid Arthritis Quality of Life (RAQoL) questionnaire for use in Serbia. Rheumatology International. 2017; 37(4): 641-6. [DOI:10.1007/s00296-016-3586-0]

27. De Jong Z, Van der Heijde D, McKenna S, Whalley D. The reliability and construct validity of the RAQoL: a rheumatoid arthritis-specific quality of life instrument. Rheumatology. 1997; 36(8): 878-83. [DOI:10.1093/rheumatology/36.8.878]

28. Sahebi A, Asghari M, Salari R. Validation of depression anxiety and stress scale (dass-21) for an iranian population. Iranian Psychologists. 2005; 1(14): 36-54.

29. Kutlay S, Küçükdeveci AA, Gönül D, Tennant A. Adaptation and validation of the Turkish version of the Rheumatoid Arthritis Quality of Life Scale. Rheumatology International. 2003; 23(1): 21-6. [DOI:10.1007/s00296-002-0247-2]

30. Tammaru M, McKenna SP, Meads DM, Maimets K, Hansen E. Adaptation of the rheumatoid arthritis quality of life scale for Estonia. Rheumatology International. 2006; 26(7): 655-62. [DOI:10.1007/s00296-005-0038-7]

31. Waimann CA, Dal Pra FM, Marengo MF, Schneeberger EE, Gagliardi S, Cocco JAM, et al. Quality of life of patients with rheumatoid arthritis in Argentina: reliability, validity, and sensitivity to change of a Spanish version of the rheumatoid arthritis quality of life questionnaire. Clinical Rheumatology. 2012; 31(7): 1065-71. [DOI:10.1007/s10067-012-1976-6]

32. Wilburn J, McKenna SP, Twiss J, Rouse M, Korkosz M, Jancovic R, et al. Further international adaptation and validation of the Rheumatoid Arthritis Quality of Life (RAQoL) questionnaire. Rheumatology International. 2015; 35(4): 669-75. [DOI:10.1007/s00296-014-3138-4]

33. 33 .Strand V, Singh JA. Improved health-related quality of life with effective disease-modifying antirheumatic drugs: evidence from randomized controlled trials. Am J Manag Care. 2008; 14(4): 234-54.

34. Matcham F, Scott IC, Rayner L, Hotopf M, Kingsley GH, Norton S, et al. The impact of rheumatoid arthritis on quality-of-life assessed using the SF-36: a systematic review and meta-analysis. Seminars in Arthritis and Rheumatism. 2014; 44(2): 123-30. [DOI:10.1016/j.semarthrit.2014.05.001]

35. Gamal RM, Mahran SA, El Fetoh NA, Janbi F. Quality of life assessment in Egyptian rheumatoid arthritis patients: Relation to clinical features and disease activity. The Egyptian Rheumatologist. 2016; 38(2): 65-70. [DOI:10.1016/j.ejr.2015.04.002]

36. Cunha M, Ribeiro A, André S. Anxiety, depression and stress in patients with rheumatoid arthritis. Procedia-Social and Behavioral Sciences. 2016; 217: 337-43. [DOI:10.1016/j.sbspro.2016.02.098]

37. Wickrematilake GWG, Wijeratne LS. Assessing the impact of rheumatoid arthritis on quality of life in a group of patients attending a rheumatology clinic in Sri Lanka. Indian Journal of Rheumatology. 2013; 8(1): 14-8. [DOI:10.1016/j.injr.2012.12.003]

38. Al-Fadl EMA, Ismail MA, Thabit M, El-Serogy Y. Assessment of health-related quality of life, anxiety and depression in patients with early rheumatoid arthritis. The Egyptian Rheumatologist. 2014; 36(2): 51-6. [DOI:10.1016/j.ejr.2013.12.004]