INTERNATIONAL CLINIMETRIC EVALUATION OF THE MG-QOL15, RESULTING IN SLIGHT REVISION AND SUBSEQUENT VALIDATION OF THE MG-QOL15R

被引:100
作者
Burns, Ted M. [1 ]
Sadjadi, Reza [2 ]
Utsugisawa, Kimiaki [3 ]
Gwathmey, Kelly G. [1 ]
Joshi, Amruta [1 ]
Jones, Sarah [1 ]
Bril, Vera [4 ]
Barnett, Carolina [4 ]
Guptill, Jeffrey T. [5 ]
Sanders, Donald B. [5 ]
Hobson-Webb, Lisa [5 ]
Juel, Vern C. [5 ]
Massey, Janice [5 ]
Gable, Karissa L. [5 ]
Silvestri, Nicholas J. [6 ]
Wolfe, Gil [6 ]
Cutter, Gary [7 ]
Nagane, Yuriko [3 ]
Murai, Hiroyuki [8 ]
Masuda, Masayuki [9 ]
Farrugia, Maria Elena [10 ]
Carmichael, Caroline [10 ]
Birnbaum, Simone [11 ]
Hogrel, Jean-Yves [11 ]
Nafissi, Shahriar [12 ]
Fatehi, Farzad [12 ]
Ou, Changyi [13 ]
Liu, Weibin [13 ]
Conaway, Mark [1 ]
机构
[1] Univ Virginia, Dept Neurol, Charlottesville, VA 22908 USA
[2] Univ Rochester, Rochester, NY USA
[3] Hanamaki Gen Hosp, Hanamaki, Japan
[4] Toronto Gen Hosp, Toronto, ON, Canada
[5] Duke Univ, Durham, NC USA
[6] SUNY Buffalo, Buffalo, NY USA
[7] Univ Alabama Birmingham, Birmingham, AL USA
[8] Kyushu Univ, Neurol Inst, Fukuoka, Japan
[9] Tokyo Med Univ, Tokyo, Japan
[10] Southern Gen Hosp, Inst Neurol Sci, Glasgow, Lanark, Scotland
[11] GH Pitie Salpetriere, Inst Myol, Paris, France
[12] Univ Tehran Med Sci, Shariati Hosp, Tehran, Iran
[13] Sun Yat Sen Univ, Affiliated Hosp 1, Guangzhou, Guangdong, Peoples R China
关键词
MG-QOL15; MG-QOL15r; myasthenia gravis; myasthenia; quality of life; Rasch analysis; revised MG-QOL15; QUALITY-OF-LIFE; MYASTHENIA-GRAVIS;
D O I
10.1002/mus.25198
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Introduction: The MG-QOL15 is a validated, health-related quality of life (HRQOL) measure for myasthenia gravis (MG). Widespread use of the scale gave us the opportunity to further analyze its clinimetric properties. Methods: We first performed Rasch analysis on > 1,300 15-item Myasthenia Gravis Quality of Life scale (MG-QOL15) completed surveys. Results were discussed during a conference call with specialists and biostatisticians. We decided to revise 3 items and prospectively evaluate the revised scale (MG-QOL15r) using either 3, 4, or 5 responses. Rasch analysis was then performed on > 1,300 MG-QOL15r scales. Results: The MGQOL15r performed slightly better than the MG-QOL15. The 3-response option MG-QOL15r demonstrated better clinimetric properties than the 4- or 5-option scales. Relative distributions of item and person location estimates showed good coverage of disease severity. Conclusions: The MG-QOL15r is now the preferred HRQOL instrument for MG because of improved clinimetrics and ease of use. This revision does not negate previous studies or interpretations of results using the MG-QOL15.
引用
收藏
页码:1015 / 1022
页数:8
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