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Periodic limb movements in sleep in community-dwelling elderly
S Ancoli-Israel1, D F Kripke, M R Klauber
1Department of Psychiatry, University of California, San Diego.
Sleep
|December 1, 1991
Abstract:
The prevalence of periodic limb movements in sleep (PLMS) in a randomly selected elderly sample is reported. In San Diego, 427 elderly volunteers aged 65 yr and over were recorded in their homes. Forty-five percent had a myoclonus index, MI greater than or equal to 5. Correlates of PLMS included dissatisfaction with sleep, sleeping alone and reported kicking at night. Although statistically significant, the strengths of the associations between interview variables and myoclonus indices were all small. No combination of demographic variables and symptoms allowed highly reliable prediction of PLMS.