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Innsbruck REM Sleep Behavior Disorder Inventory (RBD-I-5)
Please visit this website for more information about the instrument: Innsbruck REM Sleep Behavior Disorder Inventory
Supplemental: Parkinson's Disease (PD)
Short Description of Instrument
RBD-I is a five-item instrument designed to screen for the presence of RBD.
The first part of RBD-I asks about the presence of five aspects of RBD symptoms (violent/aggressive dream content, sleep-related vocalizations, sleep-related extensive movements, sleep-related injurious behaviors, and dream-behavior isomorphism). The responses can be given as: 'yes,' 'no,' or 'don't know.' RBD symptom score is calculated by dividing the number of positive responses (yes) by the number of answered items. The total RBD symptom scores range from 0 (minimum) to 1 (maximum).
The second part of RBD-I is designed to assess the frequency of symptoms in the past year with the following response options: never = 0, rare (once to a few times per year) = 1, occasional (once to a few times per month) = 2, frequent (1-2 times per week) = 3, very frequent (more than 2 times per week) = 4. RBD frequency score is calculated by dividing the number of answered items by the total number of items, with a possible score ranging from 0 (minimum) to 4 (maximum).
Scoring and Psychometric Properties
Psychometric Properties: sensitivity - 91%, and specificity - 86%
Strengths: Satisfactory psychometric properties
Key Reference:
Frauscher B, Ehrmann L, Zamarian L, Auer F, Mitterling T, Gabelia D, Brandauer E, Delazer M, Poewe W, HÖgl B. Validation of the Innsbruck REM sleep behavior disorder inventory. Mov Disord. 2012 Nov;27(13):1673-8.
Document last updated August 2022