Chinese version of the Food-related Quality of Life and its reliability and validity test

ZHU Wenli; WANG Dongling; LI Jiajia; HOU Sicong

doi:10.12102/j.issn.1009-6493.2025.04.013

Abstract：Objective:To translate the Food-related Quality of Life(FRQoL)into Chinese,and to test its validity and reliability in patients with inflammatory bowel disease.Methods:FRQoL was translated into Chinese according to Brislin translation model after being authorized by the author of the scale.5 experts were invited to form an expert group to make cultural adjustment to the scale.The Chinese version of FRQoL was formed after pre-investigation.A total of 330 patients with inflammatory bowel disease who were treated in 2 tertiary grade A hospitals in Yangzhou city from December 2022 to July 2023 were selected by convenience sampling method to test the reliability and validity.Results:The Chinese version of FRQoL included 25 items.The item-level content validity index(I-CVI)ranged from 0.833 to 1.000.The scale-level content validity index(S-CVI)was 0.978.Exploratory factor analysis extracted one common factor with eigenvalue>1,whose eigenvalue was 16.833.The cumulative contribution rate of variance was 67.334%,and the factor load of all items was>0.4.Confirmatory factor analysis showed that the model fit well.The Cronbach's α coefficient of the total volume table was 0.986,and the split half reliability was 0.967.The total score of Chinese version of FRQoL were positively correlated with the total score of Inflammatory Bowel Disease Questionnaire and the scores of 4 dimensions of intestinal symptoms,systemic symptoms,emotional function and social function(P<0.01).Conclusions:The Chinese version of FRQoL has good reliability and validity in Chinese patients with inflammatory bowel disease,and it can be used to measure patients'food-related quality of life.