The mortality of motor neuron disease in Sweden
L. G. Gunnarsson, G. Lindberg, B. Soderfelt and O. Axelson
Department of Neurology, Orebro Medical Center Hospital, Sweden.
The age-standardized mortality from motor neuron disease in Sweden doubled
from 1961 to 1985. The average annual rate during the period was 1.9 per
100,000 population. The male to female ratio was 1.2:1. The age-specific
mortality rates had a peak at 70 to 79 years of age. When each birth cohort
was followed up separately over time, the peak was less clear and in some
cohorts the mortality rates increased continuously with advancing age. A
significant increase of motor neuron disease among men was found in one
Swedish county.
