References
- Wolfe F, Smythe H A, Yunus M B, Bennett R M, Bombardier C, Goldenberg D L, et al. The American College of Rheumatology 1990 criteria for the classification of fibromyalgia. Report of the multicenter criteria committee. Arthritis Rheum 1990; 33: 160–72
- Wolfe F, Cathey M A. Prevalence of primary and secondary fibrositis. J Rheumatol 1983; 10: 965–8
- Hartz A, Kirchdoerfer E. Undetected fibrositis in primary care practice. J Fam Pract 1987; 25: 365–9
- Epstein W V, Henke C J. The nature of U.S. rheumatology practice, 1977. Arthritis Rheum 1981; 24: 1177–87
- Kjøller M, Thomsen L K, Rasmussen N K. Prevention of musculo-skeletal disorders in the Danish population 1991. Danish Institute for Clinical Epidemiology (DICE), Copenhagen 1993, (In Danish).
- Prescott E, Jacobsen S, Kjøller M, Bülow P M, Danneskiold-Samsøe B, Kamper-Jørgensen F. Fibromyalgia in the Adult Danish Population: II A study on Clinical Features. Scand J Rheumatol 1993; 22: 000–00
- Cohen J. A coefficient of agreement for nominal scales. Educational and Psychological Measurement 1960; 20: 37–46
- Rasmussen N K, Groth M V, Bredkjzr S R, Madsen M, Kamper-Jørgensen F. The Danish health and morbidity survey. Danish Institute for Clinical Epidemiology (DICE), Copenhagen 1988, (In Danish).
- Hansen E J. Living conditions of the Danes. 1986 compared to 1976. Hans Reitzels Forlag, Copenhagen 1986, (In Danish).
- Central Bureau of Statistics of Norway. Health Survey, Oslo 1986-1987
- Rasmussen J O, Smidth M, Hansen T M. Investigation for tenderpoints in soft tissue. Palpation compared with a pressure-algometer. Ugeskr Laeger 1990; 152: 1522–6
- Cott A, Parkinson W, Bell M J, Adachi J, Bédard M, Cividino A, et al. Interrater reliability of the tender point criterion for fibromyalgia. J Rheumatol 1992; 19: 1955–9
- Campbell S M, Clark S, Tindall E A, Forehand M E, Bennett R M. Clinical characteristics of fibrositis. I. A “blinded”, controlled study of symptoms and tender points. Arthritis Rheum 1983; 26: 817–24
- Rasmussen J O, Smidth M, Hansen T M. The incidence of fibromyalgia in patients admitted to a department for rheumatology. Ugeskr Laeger 1990; 152: 1520–2
- Jacobson L, Lindgarde F, Manthorpe R. The commonest rheumatic complaints of over six weeks duration in a twelve-month period in a defined Swedish population. Scand J Rheumatol 1989; 18: 353–60
- Forseth K OS, Gran J T. The prevalence of fibromyalgia among women aged 20–49 years in Arendal, Norway. Scand J Rheumatol 1992; 21: 74–8
- Jacobsen S, Bredkjer S R. The prevalence of fibromyalgia and widespread chronic musculoskeletal pain in the general population. Letter. Scand J Rheumatol 1992; 21: 261–2
- Consensus Document on Fibromyalgia. The Copenhagen Declaration. Finalized at the Consensus Conference at the 2nd World Congress on Myofascial Pain and Fibromyalgia MYOPAIN '92, Copenhagen, 1992