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Apr 2023
A retrospective cohort study of 8,689 preschool children in Changsha, China, found that pre-conception exposure to home environmental factors, such as indoor air pollution from renovation or dampness related allergens, played a more important role in AR development than exposure during the first year of life.1 It also noted a significant association with birth during cold seasons and AR, although the reasons behind this were not detailed.1 These results suggest that efforts should be taken to reduce allergen and pollution exposure not only in children, but also in prospective parents before conception and-during pregnancy.1
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