Abstract Objective: To understand the prevalence of parent-reported food allergy symptoms among preschool children in Haikou City and investigate indoor environmental risk factors for it. Methods: A cross-sectional survey was conducted with 3,049 preschool children across eight kindergartens in Haikou City from December 2020 to January 2021. The survey aimed to analyze the influence of indoor environmental factors on parent-reported food allergy symptoms in these children.
