Posted by Bob Johnson (208.234.124.40) on July 30, 1999 at 09:50:13:
In Reply to: Any southpaws? posted by Preston on July 28, 1999 at 06:32:45:
Source: CEPHALALGIA, 1994, Feb.
"A California handedness study involved 199 male and 74 female cluster headache sufferers as well as 477 migraineurs. Earlier reported data indicated that cluster headache patients had a left-handedness prevalence of over 15%. With the current data the prevalence in males was 11% and in females, 8.2%. The corresponding migraine figures were 11.8% nad 8.1%. The cluster and migraine headache groups did not differ significantly from each other or from the expected 10% frequency of left-handedness in either sex."