Validity, Reliability and Cross-Cultural Adaptation of the Myocardial Infarction Dimensional Assessment Scale for Arabic Egyptian Speaking Patients

Myocardial infarction (MI) is a major cause of mortality and morbidity and significantly affects health-related quality of life. Consequently, there is growing interest in measuring health related quality of life. The aim of this study is to translate myocardial infarction dimensional assessment scale into Arabic language for Egyptian MI patients, test its validity, reliability and culturally adapt the developed Arabic version of the MIDAS to the Egyptian MI patients. Cross-sectional, methodological research design was used to achieve the aim of the study. This study was conducted at cardiac department in Ain Shams University hospital. A purposeful sample of 100 patients who had MI for the first time was included in the study. Data were collected through 3 tools: (1) Demographic data questionnaire. (2) The Myocardial Infarction Dimensional Assessment Scale. (3) Validity and cultural relevance assessment questionnaire. Content validity index of the scale was 0.92. The overall Cronbach's alpha coefficient was 0.90, ranging from 0.40 to 0.84 for seven subscales. The test-retest reliability ranging from 0.67 to 0.92 for seven subscales. The study concluded that the translated Arabic Egyptian version of the MIDAS is a valid, reliable and culturally adapted tool for measuring healthrelated QoL of Egyptian MI patients. It is recommended to use the MIDAS Arabic version to assess the HRQoL among patients with MI in Egypt.