In a recent article we1 have shown that approximately 7 per cent of the people in this country some time in life suffer from the symptom complex known as migraine, and that about 30 per cent of all patients with migraine manifest symptoms before 10 years of age. In other words, the syndrome is common in childhood ; however, if a child were brought to a physician with a history of periodic headaches, nausea and vomiting, even if the family tree were saturated with allergic diseases, including migraine, few general practitioners would think of migraine as a possible diagnosis, and many pediatricians would give it little consideration. In their textbooks Porter and Carter,2 and Holt,3 did not mention the syndrome. Hassin4 stated that migraine is common in childhood; he treated the subject somewhat briefly. The paucity of literature and our findings concerning the incidence and age of onset of the syndrome have encouraged the presentation of this article.
AGE OF ONSETAlger5 found that in 3 per cent of cases of migraine symptoms develop before the age of 10 years. Block " stated that in the vast majority symptoms develop before the age of 25. In a study of 202 adults suffering from migraine we x found that symptoms developed in 29.7 per cent during the first decade, and in an additional 30.6 per cent before 20. At present we are caring for a number of migrainous children under 5 years of age, all of whom came, not on account of
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