Cross-Cultural Adaption and Validation of the Moroccain Arabic Version of the Chronic Ear Survey

The aim of this study was to translate and verify the psychometric properties of the CES (Chronic Ear Survey Score) in the Moroccan Arabic dialect as well as the evaluation of the quality of life of patients suffering from suppurative chronic otitis media. A cross-sectional study was carried out between 1st April 2016 and 10 January 2017 in ENT department of the 20 August hospital Casablanca. The data were collected using an anonymous questionnaire administered by the physician. The CES scale used has been translated according to international recommendations. Internal Reliability was evaluated by the Cronbach alpha coefficient and validity was calculated through the Spearman coefficient of correlations. Statistical analysis was done using SPSS 20.0. A total of 107 patients were enrolled in the study with an average age of 35 years (standard deviation = 13 years) with a sex ratio of 0.70. About 35.5% of patients perceived their disease as severe. The mean CES was 48 (standard deviation = 15) indicating a significant decrease in the quality of life of patients suffering from CSOM. Good internal reliability was noted (alpha = 0.72). CES scores increased significantly with perceived severity (p < 0.001). The Arabic version of the CES has good psychometric properties attesting to its reliability and validity. Its use would make it possible to better evaluate the quality of life of patients suffering from chronic otitis media and thus be able to compare and choose the optimal therapeutic methods based on the results of this questionnaire especially before and after surgery.