Ages at onset of infantile spasms for 257 infants studied during the period 1963-1980

Parents and physicians often do not recognize infantile spasms as seizures, particularly when they first occur, and it is probable that the age distribution should be shifted somewhat to the left.

Data from: Kellaway, P, Frost, JD Jr, Hrachovy, RA, Infantile spasms. In: Antiepileptic Drug Therapy in Pediatrics, Morselli, PL, Pippenger, CE, Penry, JK (Eds), Raven Press, New York 1983.

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