Translation, cross-cultural adaptation and validation of the traditional Chinese Food Allergy Quality of Life-Parental Burden questionnaire into simplified Chinese for use in mainland China.

The values of I-CVI ranged from 0.83 to 1.00. The CFA model revealed that the study supported the two-factor model. The questionnaire had good internal consistency with a Cronbach's alpha coefficient of 0.946. The item-total correlation values ranged from 0.707 to 0.866. Test-retest reliability showed that the intraclass correlation coefficient was 0.926 (95% CI, 0.830-0.968).