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Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire

BACKGROUND: The Migraine Disability Assessment (MIDAS) Questionnaire is a reliable and valid instrument for migraine-related disability. Such a tool is needed to quantify migraine-related disability in the Greek population. OBJECTIVE: This validation study aims to assess the test–retest reliability,...

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Autores principales: Oikonomidi, Theodora, Vikelis, Michail, Artemiadis, Artemios, Chrousos, George P., Darviri, Christina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5820235/
https://www.ncbi.nlm.nih.gov/pubmed/29464670
http://dx.doi.org/10.1007/s41669-017-0034-3
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author Oikonomidi, Theodora
Vikelis, Michail
Artemiadis, Artemios
Chrousos, George P.
Darviri, Christina
author_facet Oikonomidi, Theodora
Vikelis, Michail
Artemiadis, Artemios
Chrousos, George P.
Darviri, Christina
author_sort Oikonomidi, Theodora
collection PubMed
description BACKGROUND: The Migraine Disability Assessment (MIDAS) Questionnaire is a reliable and valid instrument for migraine-related disability. Such a tool is needed to quantify migraine-related disability in the Greek population. OBJECTIVE: This validation study aims to assess the test–retest reliability, internal consistency, item discriminant and convergent validity of the Greek translation of the MIDAS. METHODS: Adults diagnosed with migraine completed the MIDAS Questionnaire on two occasions 3 weeks apart to assess reliability, and completed the RAND-36 to assess validity. RESULTS: Participants (n = 152) had a median MIDAS score of 24 and mostly severe disability (58% were grade IV). The test–retest reliability analysis (N = 59) revealed excellent reliability for the total score. Internal consistency was α = 0.71 for initial and α = 0.82 for retest completion. For item discriminant validity, the correlations between each question and the total score were significant, with high correlations for questions 2–5 (range 0.67 ≤ r ≤ 0.79; p < 0.01). For convergent validity, there was significant negative correlation between the total score and all RAND-36 subscales except for ‘emotional wellbeing’. The negative correlation indicates that patients with a lower degree of disability according to their MIDAS score tended to have better wellbeing. Psychometric properties are comparable with those of other published validation studies of the MIDAS and the original. Findings on question 1 show that missing work/school days may be closely related with increased affect issues. CONCLUSION: The Greek version of the MIDAS Questionnaire has good reliability and validity. This study allowed for cross-cultural comparability of research findings.
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spelling pubmed-58202352018-03-27 Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire Oikonomidi, Theodora Vikelis, Michail Artemiadis, Artemios Chrousos, George P. Darviri, Christina Pharmacoecon Open Short Communication BACKGROUND: The Migraine Disability Assessment (MIDAS) Questionnaire is a reliable and valid instrument for migraine-related disability. Such a tool is needed to quantify migraine-related disability in the Greek population. OBJECTIVE: This validation study aims to assess the test–retest reliability, internal consistency, item discriminant and convergent validity of the Greek translation of the MIDAS. METHODS: Adults diagnosed with migraine completed the MIDAS Questionnaire on two occasions 3 weeks apart to assess reliability, and completed the RAND-36 to assess validity. RESULTS: Participants (n = 152) had a median MIDAS score of 24 and mostly severe disability (58% were grade IV). The test–retest reliability analysis (N = 59) revealed excellent reliability for the total score. Internal consistency was α = 0.71 for initial and α = 0.82 for retest completion. For item discriminant validity, the correlations between each question and the total score were significant, with high correlations for questions 2–5 (range 0.67 ≤ r ≤ 0.79; p < 0.01). For convergent validity, there was significant negative correlation between the total score and all RAND-36 subscales except for ‘emotional wellbeing’. The negative correlation indicates that patients with a lower degree of disability according to their MIDAS score tended to have better wellbeing. Psychometric properties are comparable with those of other published validation studies of the MIDAS and the original. Findings on question 1 show that missing work/school days may be closely related with increased affect issues. CONCLUSION: The Greek version of the MIDAS Questionnaire has good reliability and validity. This study allowed for cross-cultural comparability of research findings. Springer International Publishing 2017-06-26 /pmc/articles/PMC5820235/ /pubmed/29464670 http://dx.doi.org/10.1007/s41669-017-0034-3 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Short Communication
Oikonomidi, Theodora
Vikelis, Michail
Artemiadis, Artemios
Chrousos, George P.
Darviri, Christina
Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire
title Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire
title_full Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire
title_fullStr Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire
title_full_unstemmed Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire
title_short Reliability and Validity of the Greek Migraine Disability Assessment (MIDAS) Questionnaire
title_sort reliability and validity of the greek migraine disability assessment (midas) questionnaire
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5820235/
https://www.ncbi.nlm.nih.gov/pubmed/29464670
http://dx.doi.org/10.1007/s41669-017-0034-3
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