Reliability of a new scale for essential tremor
Identifieur interne : 000289 ( Pmc/Corpus ); précédent : 000288; suivant : 000290Reliability of a new scale for essential tremor
Auteurs : Rodger Elble ; Cynthia Comella ; Stanley Fahn ; Mark Hallett ; Joseph Jankovic ; Jorge L. Juncos ; Peter Lewitt ; Kelly Lyons ; William Ondo ; Rajesh Pahwa ; Kapil Sethi ; Natividad Stover ; Daniel Tarsy ; Claudia Testa ; Ron Tintner ; Ray Watts ; Theresa ZesiewiczSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2012.
Abstract
To determine the reliability of a new scale for the clinical assessment of essential tremor.
The Essential Tremor Rating Assessment Scale contains nine performance items that rate action tremor in the head, face, voice, limbs and trunk 0–4 in half-point intervals. Head and limb tremor ratings are defined by specific amplitude ranges in centimeters.
Videos of 44 patients and 6 controls were rated by 10 specialists on two occasions, 1–2 months apart. Inter- and intra-rater reliabilities were assessed with a two-way random effects intraclass correlation, using an absolute agreement definition.
The inter- and intra-rater intraclass correlations for head and upper limb tremor ranged from 0.86 to 0.96, and the intraclass correlations for the total score were 0.94 and 0.96. The intraclass correlations for voice, face, trunk and leg were less robust.
This scale is an exceptionally reliable tool for the clinical assessment of essential tremor.
Url:
DOI: 10.1002/mds.25162
PubMed: 23032792
PubMed Central: 4157921
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