Vol 51, No 4 (2017)

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Validity and reliability of the Polish version of myasthenia gravis – Quality of life questionnaire – 15 item

Izabela Rozmilowska1, Monika Adamczyk-Sowa1, Krystyna Pierzchala1, Damian Czyzewski2
DOI: 10.1016/j.pjnns.2017.05.003
Neurol Neurochir Pol 2017;51(4):311-318.



The myasthenia gravis-quality of life questionnaire 15 item (MG-QOL15) is a short, and easy to use disease-specific quality of life (QOL) tool in myasthenia gravis. The aim of this study was to validate and adapt the Polish version of the MG-QOL15.

Materials and methods

The total number of 50 patients with MG were qualified for the examination. Each patient underwent neurological examination and completed the quality of life evaluation questionnaire MQ-QOL 15 after translation and back-translation. Additionally, each patient was asked to evaluate the quality of his/her life by means of questionnaire SF-36 in Polish language version.


The MG-QOL15 was found to have high internal consistency, test–retest reliability, and concurrent validity.


The MG-QOL15 is accepted to be a valid, reliable, valuable tool for measuring disease-specific QOL in Polish patients with MG.

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Neurologia i Neurochirurgia Polska