Prevalence of movement disorders in elderly community residents.
We studied movement disorders (MD) in community residents of Saskatchewan aged > or = 65 years. A representative sample of 70 individuals had detailed neurological evaluation. Those who had definite and possible MD at first examination had a second neurological assessment by a senior neurologist. The most prevalent MD was essential tremor (ET) (14%) followed by Parkinson's disease (PD) (3%). The marked difference in prevalence ratios for PD and ET are attributed to: (a) higher incidence of ET in the general population; (b) a greater possibility that most, if not all, ET cases would reside in the community whereas a sizable proportion of elderly PD cases may be institutionalized, and (c) shortened survival in PD but a normal life expectancy in ET.
Moghal
S
S
Department of Medicine, University of Saskatchewan, Saskatoon, Canada.
Rajput
A H
AH
D'Arcy
C
C
Rajput
R
R
D000368:Aged; D000369:Aged, 80 and over; D003154:Community Medicine; D005260:Female; D006801:Humans; D008297:Male; D009069:Movement Disorders / Q000175:diagnosis / Q000453:epidemiology*; D010300:Parkinson Disease / Q000175:diagnosis / Q000453:epidemiology; D015995:Prevalence; D012307:Risk Factors; D012525:Saskatchewan / Q000453:epidemiology; D014202:Tremor / Q000175:diagnosis / Q000453:epidemiology