4. Ballesio A, Zagaria A, Baccini F, Micheli F, Di Nardo G, Lombardo C. A meta-analysis on sleep quality in inflammatory bowel disease. Sleep Med Rev 2021;60:101518.
5. Hao G, Zhu B, Li Y, Wang P, Li L, Hou L. Sleep quality and disease activity in patients with inflammatory bowel disease: a systematic review and meta-analysis. Sleep Med 2020;75:301-308.
9. Knowles SR, Graff LA, Wilding H, Hewitt C, Keefer L, Mikocka-Walus A. Quality of life in inflammatory bowel disease: a systematic review and meta-analyses. Part I. Inflamm Bowel Dis 2018;24:742-751.
10. Graff LA, Vincent N, Walker JR, et al. A population-based study of fatigue and sleep difficulties in inflammatory bowel disease. Inflamm Bowel Dis 2011;17:1882-1889.
16. Taylor DJ, Mallory LJ, Lichstein KL, Durrence HH, Riedel BW, Bush AJ. Comorbidity of chronic insomnia with medical problems. Sleep 2007;30:213-218.
18. Katz DA, McHorney CA. Clinical correlates of insomnia in patients with chronic illness. Arch Intern Med 1998;158:1099-1107.
19. Ancoli-Israel S. The impact and prevalence of chronic insomnia and other sleep disturbances associated with chronic illness. Am J Manag Care 2006;12:S221-S229.
20. Tang NK, Wright KJ, Salkovskis PM. Prevalence and correlates of clinical insomnia co-occurring with chronic back pain. J Sleep Res 2007;16:85-95.
21. Ohayon MM. Relationship between chronic painful physical condition and insomnia. J Psychiatr Res 2005;39:151-159.
22. Schwartz S, McDowell Anderson W, Cole SR, Cornoni-Huntley J, Hays JC, Blazer D. Insomnia and heart disease: a review of epidemiologic studies. J Psychosom Res 1999;47:313-333.
23. Mallon L, Broman JE, Hetta J. Sleep complaints predict coronary artery disease mortality in males: a 12-year follow-up study of a middle-aged Swedish population. J Intern Med 2002;251:207-216.
24. Novak M, Mucsi I, Shapiro CM, Rethelyi J, Kopp MS. Increased utilization of health services by insomniacs: an epidemiological perspective. J Psychosom Res 2004;56:527-536.
25. Léger D, Massuel MA, Metlaine A, SISYPHE Study Group. Professional correlates of insomnia. Sleep 2006;29:171-178.
32. Keskin EB, Şahbaz CD. Chronotype and sleep quality in patients with inflammatory bowel disease. Med Bull Haseki 2020;58:72-77.
36. Blais FC, Gendron L, Mimeault V, Morin CM. Evaluation of insomnia: validity of 3 questionnaires. Encephale 1997;23:447-453.
37. Bastien CH, Vallières A, Morin CM. Validation of the Insomnia Severity Index as an outcome measure for insomnia research. Sleep Med 2001;2:297-307.
38. Harvey RF, Bradshaw JM. A simple index of Crohn’s-disease activity. Lancet 1980;1:514.
39. Bennebroek Evertsz’ F, Hoeks CC, Nieuwkerk PT, et al. Development of the patient Harvey Bradshaw Index and a comparison with a clinician-based Harvey Bradshaw Index assessment of Crohn’s disease activity. J Clin Gastroenterol 2013;47:850-856.
41. Bennebroek Evertsz’ F, Nieuwkerk PT, Stokkers PC, et al. The patient simple clinical colitis activity index (P-SCCAI) can detect ulcerative colitis (UC) disease activity in remission: a comparison of the P-SCCAI with clinician-based SCCAI and biological markers. J Crohns Colitis 2013;7:890-900.
43. Craig CL, Marshall AL, Sjöström M, et al. International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc 2003;35:1381-1395.
44. Spitzer RL, Kroenke K, Williams JB, Löwe B. A brief measure for assessing generalized anxiety disorder: the GAD-7. Arch Intern Med 2006;166:1092-1097.
47. Gower-Rousseau C, Sarter H, Savoye G, et al. Validation of the inflammatory bowel disease disability index in a population-based cohort. Gut 2017;66:588-596.
48. Mustafa M, Bawazir Y, Merdad L, et al. Frequency of sleep disorders in patients with rheumatoid arthritis. Open Access Rheumatol 2019;11:163-171.
49. Reynolds AC, Appleton SL, Gill TK, Adams RJ. Chronic insomnia disorder in Australia. Sleep Health Foundation, North Strathfield: 2019.
51. Ohayon MM. Epidemiology of insomnia: what we know and what we still need to learn. Sleep Med Rev 2002;6:97-111.
52. Schuh-Hofer S, Wodarski R, Pfau DB, et al. One night of total sleep deprivation promotes a state of generalized hyperalgesia: a surrogate pain model to study the relationship of insomnia and pain. Pain 2013;154:1613-1621.
55. Cox RC, Olatunji BO. Sleep in the anxiety-related disorders: a meta-analysis of subjective and objective research. Sleep Med Rev 2020;51:101282.
57. van der Zweerde T, Bisdounis L, Kyle SD, Lancee J, van Straten A. Cognitive behavioral therapy for insomnia: a meta-analysis of long-term effects in controlled studies. Sleep Med Rev 2019;48:101208.
58. Trauer JM, Qian MY, Doyle JS, Rajaratnam SM, Cunnington D. Cognitive behavioral therapy for chronic insomnia: a systematic review and meta-analysis. Ann Intern Med 2015;163:191-204.
59. Sadler P, McLaren S, Klein B, Harvey J, Jenkins M. Cognitive behavior therapy for older adults with insomnia and depression: a randomized controlled trial in community mental health services. Sleep 2018;41:zsy104.
60. Manber R, Buysse DJ, Edinger J, et al. Efficacy of cognitive-behavioral therapy for insomnia combined with antidepressant pharmacotherapy in patients with comorbid depression and insomnia: a randomized controlled trial. J Clin Psychiatry 2016;77:e1316-e1323.