Validity and reliability of the Portuguese version of the modified Migraine Disability Assessment

BMC Neurology

Pedro L. Ferreira¹  Lara Ferreira²  Margarida Lopes³  Bruno Silva⁴  André Jorge⁴  Isabel Luzeiro⁵ 

[1] Centre for Health Studies and Research of University of Coimbra/Centre for Innovative Biomedicine and Biotechnology, Faculty of Economics of University of Coimbra, Coimbra, Portugal;Centre for Health Studies and Research of University of Coimbra/Centre for Innovative Biomedicine and Biotechnology, University of Algarve, School of Management, Hospitality and Tourism, Faro, Portugal;Neurology Department of Braga Hospital, Braga, Portugal;Neurology Department of Coimbra University Hospital Centre, Coimbra, Portugal;Neurology Department of Coimbra University Hospital Centre, Faculty of Medicine of University of Coimbra, Coimbra, Portugal;

关键词: Patient reported outcomes;    Quality of life;    Migraine;    mMIDAS-P;    Productivity;    Disability;   

DOI  :  10.1186/s12883-021-02085-z

来源: Springer

【 摘 要 】

BackgroundMigraine Disability Assessment Scale (MIDAS) is a useful tool to measure headache-related disability. Modified MIDAS with 4-week recall period reduces recall bias and improves accuracy of the results. This study aimed at validating mMIDAS in Portuguese.MethodsStudied population consisted of adult migraine patients attending a headache outpatient clinic. Reliability was assessed by internal consistency and reproducibility in a 3-week test-retest. Content validity was evaluated by two expert panels. Construct validity was tested by comparing mMIDAS-P index in socioeconomic and clinical patient groups and scale unidimensionality was evidenced by factor analysis. Criterion validity was tested using EQ-5D-5L and HADS.ResultsNinety-two patients, 88% female, mean age of 44 years, participated. They had, in average, 9.7 headache days in previous month, pain averaging 7.5/10. About 69.9% were on a migraine prophylactic treatment, and 42.4% had severe disability; 29.4 and 13.0% showed, respectively, moderate/severe anxiety and depression. Content validity showed that mMIDAS-P is simple and clinically useful. It did not show to be determined by patient’s sociodemographic characteristics and it was correlated with depression scale and EQ-5D-5L. Test-retest demonstrated high reproductive reliability and good internal consistency.ConclusionmMIDAS-P is valid and reliable. We strongly recommend it for clinical and research use.

【 授权许可】

CC BY