[Reliability and validity of food allergy quality of life-parental burden scale in China].

To translate the food allergy quality of life-parental burden (FAQL-PB) scale into Chinese and test its reliability and validity among the caregivers of children with food allergy. The caregivers of 222 children with food allergy were enrolled by convenient sampling from October 2020 to October 2021 in the Children's Hospital Affiliated to Chongqing Medical University. The forward-backward translation and cultural adaptation of the original FAQL-PB scale was performed in accordance with Brislin's model. Item analysis was used to select items. The validity of the questionnaire was analyzed with the item-level content validity and the exploratory factors analysis. And the internal consistency coefficient, split-half reliability and test-retest reliability were used to evaluate the reliability of the questionnaire. The Pearson correlation coefficients of the scores between each item and total scale ranged from 0.72 to 0.88 (<0.01). The item-level content validity index (I-CVI) ranged from 0.83 to 1.00, scale-level content validity index/universal agreement (S-CVI/UA) was 0.94, and scale-level content validity index/average (S-CVI/Ave) was 0.99. Exploratory factor analysis revealed that Chinese version of FAQL-PB scale could be classified into two dimensions: emotional distress and limitations on life, with the accumulative variance contribution rate of 74.08%. The Cronbach's α coefficient, split-half reliability coefficient and test-retest reliability of the Chinese version of FAQL-PB scale were 0.97, 0.98 and 0.71, respectively. The Chinese version of FAQL-PB scale is proved to be reliable and eligible, and can be used as a specific tool to investigate the quality of life in family of children with food hypersensitivity.