The prevalence and temporal trends of food allergy among preschool children in Northern Thailand between 2010 and 2019

Although recent studies suggest that the prevalence of food allergy (FA) has not changed, the data from developing countries are limited. This study aimed to investigate time trends in the prevalence of FA among preschool children in 2010 and 2019 in Northern Thailand.Two cross-sectional studies were performed, 9 years apart (2010 and 2019), using the same methods, in children aged 3-7 years living in Chiang Mai, Thailand. Parent-reporting...