Cross-Cultural Adaptation and Determination of the Validity and Reliability of the Persian Version of the Patient-Rated Tennis Elbow Evaluation (PRTEE) Questionnaire in Iranian Tennis Players

Abstract

Article Info Cross-Cultural Adaptation and Determination of the Validity and Reliability of the Persian Version of the Patient-Rated Tennis Elbow Evaluation (PRTEE) Questionnaire in Iranian Tennis Players Ali Mansoori1 , Shohreh Noorizadeh Dehkordi*2, Soheil Mansour Sohani2, Afsun Nodehi Moghadam3 1. MSc. Student, Department of Physiotherapy, Iranian Center of Excellence in Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran 2. Associate Professor, Department of Physiotherapy, Iranian Centre of Excellence in Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran 3. Associate Professor, Department of Physiotherapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran Background and Objectives: The objective of this study was to evaluate the crosscultural adaptation of the Persian version of the Patient-Rated Tennis Elbow Evaluation (PRTEE) in Iranian tennis players with lateral epicondylitis. Materials and Methods: The original version of the PRTEE questionnaire was translated into the Persian language by two bilingual translators in accordance with the instructions provided by Beaton et al. One hundred and two tennis players (64 males and 38 females) suffering from lateral epicondylitis and 40 tennis player with no lateral epicondylitis participated in this study. In order to determine the construct validity, the correlation between the Persian version of the PRTEE and disabilities of the arm, shoulder and hand questionnaire (DASH) were all investigated. The reliability of the questionnaire was determined from two different aspects of the test-retest reliability and internal consistency. Results: There was a high correlation between PRTEE and DASH questionnaires (r = 0.88). The coefficient of Cronbach’s alpha for the total score of the PRTEE questionnaire was 0.96 and the intra-class correlation (ICC) coefficient for the total score was 0.95. There was a significant difference in the scores of patients (M=45.56, SD=20.56) and healthy (M=7.23, SD=5.5) tennis players; (t =17.31, P<0.0001). Conclusion: The Persian version of the PRTEE questionnaire to assess pain and functional problems in patients with lateral epicondylitis is highly reliable and valid in this setting.