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  • Title: Adaptation and Validation of the Israeli Version of the Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL).
    Author: Kessel A, Graif Y, Vadasz Z, Schichter-Konfino V, Almog M, Cohen S, Teplitski V, Stein N, Baiardini I, Maurer M, Toubi E.
    Journal: Isr Med Assoc J; 2016 Aug; 18(8):461-465. PubMed ID: 28471576.
    Abstract:
    BACKGROUND: Chronic urticaria (CU) is a common disabling disorder. The CU-Q2oL (Chronic Urticaria Quality of Life Questionnaire) is a specific questionnaire for evaluating quality of life in CU patients. It consists of 23 items divided into six quality-of-life dimensions. It was initially developed in Italy and later validated in other countries. OBJECTIVES: To validate and adapt the CU-Q2oL to the Hebrew language in order to make it suitable for use in Israel. METHODS: The CU-Q2oL questionnaire was translated to Hebrew. A group of 119 CU patients were asked to complete this version, in addition to the Dermatology Life Quality Index (DLQI) and Urticaria Activity Score (UAS) questionnaires. A factorial analysis was performed to identify CU-Q2oL subscales, internal consistency and convergent validity assessment, as well as factors determining quality-of-life scores. RESULTS: The factor analysis identified six scales of the Israeli CU-Q2oL: (i) sleep and concentration, (ii) function and mental status, (iii) embarrassment and clothing limitations, (iv) itching, (v) eating behavior and medication side effects, and (vi) swelling, which accounted for 77% of the data variance. Five scales showed good internal consistency over 0.81. The mean ± SD score of CU-Q2oL in our patients with CIU was 41 ± 21.7. We found a strong positive correlation between the overall scores of CU-Q2oL and DLQI questionnaires (r = 0.8, P < 0.01). Additionally, we found a positive correlation between UAS and both CU-Q2oL and DLQI (r = 0.62, P < 0.01, and r = 0.53, P < 0.01, respectively). CONCLUSIONS: This study demonstrates that the Israeli CU-Q2oL questionnaire is suitable for both clinical use and research in Israel.
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