Construction of a new scale measuring the severity of myasthenia gravis based on Delphi method and previous evaluation of source scales
10.3760/cma.j.issn.1006-7876.2017.10.003
- VernacularTitle:应用Delphi法结合前期条目评价建立重症肌无力严重程度新量表
- Author:
Lin WANG
1
;
Xiang GAO
;
Meng XIA
;
Tieshan LI
;
Tao LIU
;
Xu ZHANG
;
Bing LIANG
;
Wei LI
;
Haifeng LI
Author Information
1. 266003,青岛大学附属医院康复科
- Keywords:
Myasthenia gravis;
Scale;
Delphi method
- From:
Chinese Journal of Neurology
2017;50(10):730-736
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop the preliminary version of a new scale on the severity of myasthenia gravis ( MG) suitable for Chinese patients .Methods The item pool was established based on the four widely used MG severity scales .Then the Delphi method was applied to collect the opinions from MG experts in China.Based on the consistency of expert opinions and previous evaluation of the items in source scales , the preliminary version of a new scale was developed .Results The item pool consists of 19 items from the above four scales .The enthusiasm coefficients of experts in two rounds of survey are 91.4%(32/35) and 96.9%(31/32).The authority coefficients are 0.79 and 0.80.The Kendall′s coefficients of concordance of expert opinions are 0.22 (χ2 =127.01, P<0.01) and 0.42 (χ2 =231.56, P<0.01), respectively.The preliminary version consists of 10 items, which cover six commonly involved muscle groups in MG, including the ocular, bulbar, facial, limb, axial and the respiratory muscles.Conclusion The preliminary version of the MG severity scale was established by combining Delphi method with the previous evaluation of items from source scales .
