REM Sleep Behavior and Motor Findings in Parkinson’s Disease: A Crosssectional Analysis

  • Mahajan A
  • Rosenthal L
  • Gamaldo C
  • et al.
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Abstract

BACKGROUND Parkinson's disease (PD) represents a major public health challenge that will only grow in our aging population. Understanding the connection between PD and associated prodromal conditions, such as rapid eye movement sleep behavioral disorder (RBD), is critical to identifying prevention strategies. However, the relationship between RBD and severity of motor findings in early PD is unknown. This study aims to examine this relationship. METHODS The study population consisted of 418 PD patients who completed the Movement Disorders Society-United Parkinson's Disease Rating Scale (MDS-UPDRS) and rapid eye movement sleep (REM) disorder questionnaires at the baseline visit of the Michael J. Fox's Parkinson's Progression Markers Initiative (PPMI). Cross-sectional analysis was carried out to assess the association between REM Sleep Behavior Screening Questionnaire score and MDS UPDRS-3 (motor) score categories. Correlation with a higher score category was described as "worse motor findings". A score of 5 on the REM disorder questionnaire was defined as predictive of RBD. RESULTS Out of the 418 PD patients, 113 (27.0%) had RBD. With univariate logistic regression analysis, individuals with scores predictive of RBD were 1.66 times more likely to have worse motor findings (p = 0.028). Even with age, gender, and Geriatric Depression Scale scores taken into account, individuals with scores predictive of RBD were 1.69 times more likely to have worse motor findings (p = 0.025). DISCUSSION PD patients with RBD symptoms had worse motor findings than those unlikely to have RBD. This association provides further evidence for the relationship between RBD and PD.

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APA

Mahajan, A., Rosenthal, L. S., Gamaldo, C., Salas, R. E., Pontone, G. M., McCoy, A., … Mari, Z. (2014). REM Sleep Behavior and Motor Findings in Parkinson’s Disease: A Crosssectional Analysis. Tremor and Other Hyperkinetic Movements, 4(0), 245. https://doi.org/10.5334/tohm.184

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