TY - JOUR
T1 - Interrater reliability of motor severity scales for hemifacial spasm
AU - Lee, Ha Yeon
AU - Park, Ingyun
AU - Luu, Minnie P.
AU - Zhao, Jerry
AU - Vu, Jeanne P.
AU - Cisneros, Elizabeth
AU - Berman, Brian D.
AU - Jinnah, H. A.
AU - Kim, Han Joon
AU - Liu, Catherine Y.
AU - Perlmutter, Joel S.
AU - Richardson, Sarah Pirio
AU - Weissbach, Anne
AU - Stebbins, Glenn T.
AU - Peterson, David A.
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/10
Y1 - 2023/10
N2 - To compare the inter-rater reliability (IRR) of five clinical rating scales for video-based assessment of hemifacial spasm (HFS) motor severity. We evaluated the video recordings of 45 HFS participants recruited through the Dystonia Coalition. In Round 1, six clinicians with expertise in HFS assessed the participants’ motor severity with five scales used to measure motor severity of HFS: the Jankovic rating scale (JRS), Hemifacial Spasm Grading Scale (HSGS), Samsung Medical Center (SMC) grading system for severity of HFS spasms (Lee’s scale), clinical grading of spasm intensity (Chen’s scale), and a modified version of the Abnormal Involuntary Movement Scale (Tunc’s scale). In Round 2, clinicians rated the same cohort with simplified scale wording after consensus training. For each round, we evaluated the IRR using the intraclass correlation coefficient [ICC (2,1) single-rater, absolute-agreement, 2-way random model]. The scales exhibited IRR that ranged from “poor” to “moderate”; the mean ICCs were 0.41, 0.43, 0.47, 0.43, and 0.65 for the JRS, HSGS, Lee’s, Chen’s, and Tunc’s scales, respectively, for Round 1. In Round 2, the corresponding IRRs increased to 0.63, 0.60, 0.59, 0.53, and 0.71. In both rounds, Tunc’s scale exhibited the highest IRR. For clinical assessments of HFS motor severity based on video observations, we recommend using Tunc’s scale because of its comparative reliability and because clinicians interpret the scale easily without modifications or the need for consensus training.
AB - To compare the inter-rater reliability (IRR) of five clinical rating scales for video-based assessment of hemifacial spasm (HFS) motor severity. We evaluated the video recordings of 45 HFS participants recruited through the Dystonia Coalition. In Round 1, six clinicians with expertise in HFS assessed the participants’ motor severity with five scales used to measure motor severity of HFS: the Jankovic rating scale (JRS), Hemifacial Spasm Grading Scale (HSGS), Samsung Medical Center (SMC) grading system for severity of HFS spasms (Lee’s scale), clinical grading of spasm intensity (Chen’s scale), and a modified version of the Abnormal Involuntary Movement Scale (Tunc’s scale). In Round 2, clinicians rated the same cohort with simplified scale wording after consensus training. For each round, we evaluated the IRR using the intraclass correlation coefficient [ICC (2,1) single-rater, absolute-agreement, 2-way random model]. The scales exhibited IRR that ranged from “poor” to “moderate”; the mean ICCs were 0.41, 0.43, 0.47, 0.43, and 0.65 for the JRS, HSGS, Lee’s, Chen’s, and Tunc’s scales, respectively, for Round 1. In Round 2, the corresponding IRRs increased to 0.63, 0.60, 0.59, 0.53, and 0.71. In both rounds, Tunc’s scale exhibited the highest IRR. For clinical assessments of HFS motor severity based on video observations, we recommend using Tunc’s scale because of its comparative reliability and because clinicians interpret the scale easily without modifications or the need for consensus training.
KW - Hemifacial spasm
KW - Interrater reliability
KW - Severity rating scale
UR - http://www.scopus.com/inward/record.url?scp=85165164479&partnerID=8YFLogxK
U2 - 10.1007/s00702-023-02667-w
DO - 10.1007/s00702-023-02667-w
M3 - Article
C2 - 37466750
AN - SCOPUS:85165164479
SN - 0300-9564
VL - 130
SP - 1269
EP - 1279
JO - Journal of Neural Transmission
JF - Journal of Neural Transmission
IS - 10
ER -