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  • Title: Validation of the Arabic Version of the Memorial Symptom Assessment Scale Among Lebanese Cancer Patients.
    Author: Abu-Saad Huijer H, Sagherian K, Tamim H.
    Journal: J Pain Symptom Manage; 2015 Oct; 50(4):559-65. PubMed ID: 25242019.
    Abstract:
    CONTEXT: To our knowledge, there have been no previous attempts to translate the Memorial Symptom Assessment Scale (MSAS) into the Arabic language and validate it among the Arab cancer population. OBJECTIVES: The purpose of this study was to validate the MSAS in Arabic (MSAS-Leb) among 190 Lebanese oncology outpatients. METHODS: The questionnaires were the MSAS-Leb and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30). Data were collected between 2009 and 2010 at a major teaching hospital in Lebanon. The psychometric indices used were reliability, convergent validity, principle component analysis, and confirmatory factor analysis (CFA). RESULTS: The Cronbach's alpha coefficients for the MSAS and its subscales ranged from 0.71 to 0.83. On convergent validity testing, the psychological and global distress index subscales were moderately correlated (r > -0.50; P < 0.01) with the emotional functioning subscale of the EORTC QLQ-C30. Correlation coefficients between the MSAS items and selected subscales from the EORTC QLQ-C30 met the standards of convergent validity (r = -0.55 to 0.81; P < 0.01) except for the nausea/vomiting subscale. On principal component analysis (N = 95), four meaningful clusters were recovered. The clusters represented the psychological and physical components. CFA (N = 95) showed an acceptable model and a good fit (goodness-of-fit index = 0.59, adjusted goodness-of-fit index = 0.51, root mean square residual = 0.05, root mean square error of approximation = 0.2) with our data set. CONCLUSION: The MSAS-Leb has acceptable psychometric properties of reliability and validity. We recommend its use in clinical practice and outpatient settings among health care professionals to assess and follow-up on symptom burden among patients diagnosed with cancer.
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