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Letters to the Editor
April 2001

In reply

Arch Neurol. 2001;58(4):680-681. doi:

Dr Freeman, as a chiropractor and epidemiologist, has offered a statistical argument against chronic whiplash syndrome as a functional disorder. The lack of chronic symptoms in my study of 20 demolition derby drivers with an estimated total of 1900 collisions over an average of 7.2 years, a total of 38 000 collisions, should at least suggest that permanent physical injury is minimal or nonexistent; however, my article was not based solely upon this observation. It is a common clinical experience that chronic, disabling symptoms are not seen (1) in the neck strains of sports injuries, in which forces are similar, (2) in the offending driver, or (3) in jurisdictions without compensation schemes, and similar, if not identical, symptoms are encountered in populations of controls who have not been involved in accidents.1