TY - CHAP M1 - Book, Section TI - Chapter 17. Epidemiology of Headaches A1 - Hamelsky, Sandra W. A1 - Stewart, Walter F. A1 - Lipton, Richard B. A2 - Warfield, Carol A. A2 - Bajwa, Zahid H. PY - 2004 T2 - Principles & Practice of Pain Medicine, 2e AB - Headache is a common pain symptom that inflicts a substantial burden on individual sufferers and on society. Headache has many causes; a range of headache diagnoses was defined by the International Headache Society (IHS) in 1988.1 The IHS distinguishes two broad groups of headache disorders: primary headache disorders and secondary headache disorders. Secondary headache disorders result from an underlying condition, such as a sinus infection or brain tumor. In primary headache disorders, the headache disorder is the fundamental problem. The two most common types of primary headache disorders are episodic tension-type headache (ETTH) and migraine. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/29 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=3410980 ER -