Psychometric evaluation of the Mental Health Quality of Life (MHQoL) instrument in seven European countries

ECOS consortium, Joost J. Enzing*, Frédérique C.W. van Krugten, Iryna Sabat, Sebastian Neumann-Böhme, Bert Boer, Saskia Knies, Werner B.F. Brouwer

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)
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Abstract

INTRODUCTION: To make efficient use of available resources, decision-makers in healthcare may assess the costs and (health) benefits of health interventions. For interventions aimed at improving mental health capturing the full health benefits is an important challenge. The Mental Health Quality of Life (MHQoL) instrument was recently developed to meet this challenge. Evaluating the pyschometric properties of this instrument in different contexts remains important. METHODS: A psychometric evaluation of the MHQoL was performed using existing international, cross-sectional data with 7155 respondents from seven European countries (Denmark, France, Germany, Italy, Portugal, The Netherlands, Portugal and the United Kingdom). Reliability was examined by calculating Cronbach's alpha, a measure of internal consistency of the seven MHQoL dimensions, and by examining the association of the MHQoL sum scores with the MHQoL-VAS scores. Construct validity was examined by calculating Spearman's rank correlation coefficients between the MHQoL sum scores and EQ-5D index scores, EQ-VAS scores, EQ-5D anxiety/depression dimension scores, ICECAP-A index scores and PHQ-4 sum scores. RESULTS: The MHQoL was found to have good internal consistency for all seven countries. The MHQoL sum score and the MHQoL-VAS had a high correlation. Spearman's rank correlation coefficients were moderate to very high for all outcomes. CONCLUSION: Our results, based on data gathered in seven European countries, suggest that the MHQoL shows favourable psychometrical characteristics. While further validation remains important, the MHQoL may be a useful instrument in measuring mental health-related quality of life in the Western European context.

Original languageEnglish
Article number129
JournalHealth and Quality of Life Outcomes
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Sept 2022

Bibliographical note

Funding Information:
The ECOS project received funding from the Horizon 2020 Research and Innovation Programme of the European Union through the Marie Skłodowska-Curie Grant Agreement No. 721402 and is further funded by the German research foundation (DFG) funds from the Excellence Strategy of the University of Hamburg and other participating universities.

Publisher Copyright:
© 2022, The Author(s).

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