Cross-cultural adaptation, validity, and reliability of the Wexner questionnaire in patients with functional constipation in an Iranian population

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Majidirad Fatemeh; HADIAN MOHAMMAD REZA; ASL SOLEIMANI HOSSEIN; JALAIE SHOHREH; Ahadi Tannaz; Bazaz Bebahani Roxana; BAGHERI HOSSEIN

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Journal: GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH Year:2021 | Volume:14 | Issue:3 Page(s): 243-249

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Title

Cross-cultural adaptation, validity, and reliability of the Wexner questionnaire in patients with functional constipation in an Iranian population

Author(s)

Keywords

Constipation

Validity

Reliability

Persian version

Questionnaire

Abstract

Aim: The present study aimed to cross-culturally adapt and assess the validity and reliability of the English version of the Wexner questionnaire translated into the Persian language in Iranian patients. Background: Constipation is one of the most common gastrointestinal disorders; therefore, it is necessary to utilize an index for both the clinic and research studies. Methods: In the first phase, the English version of the Wexner questionnaire was translated into the Persian language. In the second phase, the Persian version was assessed to evaluate the psychometric properties in 136 patients with functional constipation who referred to gastrointestinal and physical medicine clinics. Content validity was assessed by face validity. Construct validity was tested based on hypothesis testing and structural validity. The correlation of the total scores of the Wexner questionnaire and the Patient Assessment Constipation Quality Of Life (PAC-QOL) questionnaire was used for concurrent criterion validity. Internal consistency and test-retest reliability were calculated using Cronbach's α and intraclass correlation coefficient (ICC). The floor/ceiling effect of the questionnaire was also evaluated. Results: The content validity of the Persian version of Wexner’ s questionnaire was acceptable. The construct and concurrent criteria validity showed moderate correlation. The internal consistency and intrarater reliability were moderate (0. 51) and excellent (rp = 0. 97, p-value <0. 001), respectively. No floor/ceiling effect was seen. Conclusion: The Persian version of the Wexner questionnaire showed good validity and reliability in Iranian patients and can therefore be applied in clinics as well as in research for Persian-speaking countries.

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APA: Copy

Majidirad, Fatemeh, ASL SOLEIMANI, HOSSEIN, JALAIE, SHOHREH, Ahadi, Tannaz, Bazaz Bebahani, Roxana, & BAGHERI, HOSSEIN. (2021). Cross-cultural adaptation, validity, and reliability of the Wexner questionnaire in patients with functional constipation in an Iranian population. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH, 14(3), 243-249. SID. https://sid.ir/paper/976425/en

Vancouver: Copy

Majidirad Fatemeh, ASL SOLEIMANI HOSSEIN, JALAIE SHOHREH, Ahadi Tannaz, Bazaz Bebahani Roxana, BAGHERI HOSSEIN. Cross-cultural adaptation, validity, and reliability of the Wexner questionnaire in patients with functional constipation in an Iranian population. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH[Internet]. 2021;14(3):243-249. Available from: https://sid.ir/paper/976425/en

IEEE: Copy

Fatemeh Majidirad, HOSSEIN ASL SOLEIMANI, SHOHREH JALAIE, Tannaz Ahadi, Roxana Bazaz Bebahani, and HOSSEIN BAGHERI, “Cross-cultural adaptation, validity, and reliability of the Wexner questionnaire in patients with functional constipation in an Iranian population,” GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH, vol. 14, no. 3, pp. 243–249, 2021, [Online]. Available: https://sid.ir/paper/976425/en

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