Interrater reliability of the unified Parkinson's disease rating scale motor examination

Authors

  • Marcus Richards,

    1. Departments of Neurology, Columbia University, New York, U.S.A.
    2. The Gertrude H. Sergievsky Center, Columbia University, New York, U.S.A.
    3. The Center for Alzheimer's Disease Research, College of Physicians and Surgeons, Columbia University, New York, U.S.A.
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  • Karen Marder,

    1. Departments of Neurology, Columbia University, New York, U.S.A.
    2. The Gertrude H. Sergievsky Center, Columbia University, New York, U.S.A.
    3. The Center for Alzheimer's Disease Research, College of Physicians and Surgeons, Columbia University, New York, U.S.A.
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  • Lucien Cote,

    1. Departments of Neurology, Columbia University, New York, U.S.A.
    2. The Center for Alzheimer's Disease Research, College of Physicians and Surgeons, Columbia University, New York, U.S.A.
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  • Dr. Richard Mayeux

    Corresponding author
    1. Departments of Neurology, Columbia University, New York, U.S.A.
    2. Psychiatry, Columbia University, New York, U.S.A.
    3. The Gertrude H. Sergievsky Center, Columbia University, New York, U.S.A.
    4. The Center for Alzheimer's Disease Research, College of Physicians and Surgeons, Columbia University, New York, U.S.A.
    • Gertrude H. Sergievsky Center, 630 West 168th Street, New York, NY 10032, U.S.A.
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Abstract

Interrater reliability of the Unified Parkinson's Disease Rating Scale (UPDRS) motor examination was assessed by three neurologists experienced in the administration of this scale. Intraclass correlation coefficients indicated good-to-excellent agreement for speeded repeated movements, resting tremor, arising from a chair, and gait; moderate agreement for action tremor, rigidity, posture, postural stability, and bradykinesia; and poor agreement for speech disorder and facial immobility. Overall, these results indicate that satisfactory interrater reliability is attainable with the UPDRS motor examination.

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