References
- Lipton R B, Walter F S, Celentano D D, Reed M L. Undiagnosed migraine headache; a comparison of symptom-based and reported physician diagnoses. Arch Intern Med 1992; 152: 1273–8
- Linet M S, Stewart W, Celentano D D, Ziegler D, Sprecher M. An epidemiological study of headache among adolescents and young adults. JAMA 1989; 261: 2211–6
- Crisp A H, Kalucy R S, McGuinness A, Ralph P C, Harris G. Some clinical, social and psychological characteristics of migraine subjects in the general population. Postgrad Med J 1977; 53: 691–7
- Hasvold T, Johnsen R. Headache and neck or shoulder pain — frequent and disabling complaints in the general population. Scand J Prim Health Care 1993; 11: 219–24
- De Bendittis G, Lorenzetti A, Pieri A. The role of stressful life events in the onset of chronic primary headache. Pain 1990; 40: 65–75
- Waddell G. A new clinical model for the treatment of low-back pain. Spine 1987; 12: 632–44
- Bass J M, McWhinney I R, Dempsey J B, Annen A A, Bocking B D, Bryan W H, et al. Predictors of outcome in headache patients presenting to family physicians — a one year prospective Study. Headache 1986; 26: 285–95
- Nelson Craig F. The tension headache, migraine headache continuum: a hypothesis. J Manipulative Physiol Ther 1994; 17: 156–67
- Nie H H, Hull C H, Jenkins J G, Steinbrenner K, Bent D H. Statistical package for the social sciences. 2nd ed. McGraw Hill, New York 1975
- Headache Classification Committee of the International Headache Society. Classification and diagnostic criteria for headache disorders, cranial neuralgia, and facial pain. Cephalalgia 1988; 8(suppl 7)19–28
- Winnem J. Prevalence of adult migraine in general practice. Cephalalgia 1992; 12: 300–3
- Deubner D. An epidemiological study of migraine and headache in 10–20 year old. Headache 1977; 17: 173–80
- Stewart F W, Lipton R B, Celentano D D, Reed M L. Prevalence of migraine headache in the United States. Relation to age, income, race, and other sociodemographic factors. JAMA 1992; 267: 64–9
- Waters W E, O'Connor P J. Epidemiology of headache and migraine in women. J Neural Neurosurg Psychiatry 1971; 34: 148–53
- Lebbink J, Egilius L H, Messinger H B. A questionnaire survey of muscular symptoms in chronic headache. Clin J Pain 1991; 7: 95–101
- Anderson C D, Franks R D. Migraine and tension headache: is there a physiological difference. Headache 1981; 21: 63–71
- Koehler T, Buck-Emden E, Dutz K. Frequency of migraine among an unselected group of employees and variation of prevalence according to different diagnostic criteria. Headache 1992; 32: 79–83
- Fylkesnes K, Førde O H. The Tromsø study: predictors of self-evaluated health — has society adopted the expanded health concept. Soc Sci Med 1991; 32: 141–6
- Hibbard J H, Pope C R. Gender roles, illness orientation and use of medical service. Soc Sci Med 1983; 17: 129–37