References
- Sjøgren P, Ekholm O, Peuckmann V, Grønbæk M. Epidemiology of chronic pain in Denmark: an update. Eur J Pain 2009;13:287–92.
- Becker N, Bondegaard Thomsen A, Olsen AK, Sjøgren P, Bech P, Eriksen J. Pain epidemiology and health related quality of life in chronic non-malignant pain patients referred to a Danish multidisciplinary pain center. Pain 1997;73:393–400.
- Lin R-F, Chang J-J, Lu Y-M, Huang M-H, Lue Y-J. Correlations between quality of life and psychological factors in patients with chronic neck pain. Kaohsiung J Med Sci 2010;26:13–20.
- Laursen BS, Bajaj P, Olesen AS, Delmar C, Arendt-Nielsen L. Health related quality of life and quantitative pain measurement in females with chronic non-malignant pain. Eur J Pain 2005; 9:267–75.
- Jónsson SH, Guðlaugsson JÓ, Gylfason HF, Guðmundsdóttir DG. Health and well-being of Icelanders 2007: project report. Reykjavik, Iceland: Public Health Institute, 2011.
- Hays R, Bjorner J, Revicki D, Spritzer K, Cella D. Development of physical and mental health summary scores from the patient-reported outcomes measurement information system (PROMIS) global items. Qual Life Res 2009;18:873–80.
- Abdel-Khalek AM. Measuring happiness with a single-item scale. Soc Behav Pers 2006;34:139.
- Tennant R, Hiller L, Fishwick R, Platt S, Joseph S, Weich S, . The Warwick-Edinburgh Mental Well-being Scale (WEMWBS): development and UK validation. Health Qual Life Outcomes 2007;5:63.
- Diener E, Emmons RA, Larsen RJ, Griffin S. The Satisfaction With Life Scale. J Pers Assess 1985;49:71–5.
- Leung D, Lam T-H, Chan S. Three versions of Perceived Stress Scale: validation in a sample of Chinese cardiac patients who smoke. BMC Public Health 2010;10:513.
- Mastering depression in primary care. Frederiksborg: World Health Organization Regional Office for Europe, Psychiatric Research Unit, 1998.
- Lamé IE, Peters ML, Vlaeyen JWS, Kleef Mv, Patijn J. Quality of life in chronic pain is more associated with beliefs about pain, than with pain intensity. Eur J Pain 2005;9:15–24.
- Demyttenaere K, Bruffaerts R, Lee S, Posada-Villa J, Kovess V, Angermeyer MC, . Mental disorders among persons with chronic back or neck pain: results from the World Mental Health Surveys. Pain 2007;129:332–42.
- Lindell L, Bergman S, Petersson IF, Jacobsson LTH, Herrström P. Prevalence of fibromyalgia and chronic widespread pain. Scand J Prim Health Care 2000;18:149–53.
- Björnsdóttir S, Jónsson S, Valdimarsdóttir U. Functional limitations and physical symptoms of individuals with chronic pain. Scand J Rheumatol 2013;42:59–70.