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RLS with PLMS More Common in Elderly Persons

Sleep; ePub 2018 Jun 1; Doan, Koo, Ogilvie, et al

Approximately 7% of the sample population in a recent study had restless leg syndrome (RLS) with periodic limb movements during sleep (PLMS “electro-clinical RLS”). This condition was more common among older individuals, did not vary by sex, and was less common among blacks. Cross-sectional data from 2,041 Multi-Ethnic Study of Atherosclerosis (MESA) Sleep ancillary study participants were used. PLMS (>15 periodic limb movements per hour of sleep) was measured by polysomnography. RLS symptoms were assessed using the 2009 International Restless Legs Syndrome Study Group clinical criteria. Researchers found:

  • The prevalence of RLS with PLMS was 6.7%, RLS alone 16.1%, and PLMS alone 21.2%.
  • RLS with PLMS was prevalent in 7.0% of whites, 4.9% of blacks, 10.1% of Hispanics, and 3.3% of Chinese-Americans.
  • In adjusted models, odds of RLS with PLMS was higher for those aged >67 years vs those younger.
  • Relative to white participants, the prevalence of RLS with PLMS tended to be lower among blacks.
  • The prevalence of concurrent RLS and PLMS did not statistically differ by sex or obesity status.
  • RLS alone was more common in women.

Citation:

Doan TT, Koo BB, Ogilvie RP, Redline S, Lutsey PL. Restless legs syndrome and periodic limb movements during sleep in the multi-ethnic study of atherosclerosis (MESA). [Published online ahead of print June 1, 2018]. Sleep. doi:10.1093/sleep/zsy106.

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