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Is sibship composition a risk factor for childhood asthma? Systematic review and meta-analysis.

Daniil LisikSaliha Selin Özuygur ErmisAthina IoannidouGregorio Paolo MilaniSungkutu NyassiGiulia Carla Immacolata SpolidoroHannu KankaanrantaEmma GoksörGöran WennergrenBright Ibeabughichi Nwaru
Published in: World journal of pediatrics : WJP (2023)
Being second-born or later and having at least one sibling is associated with a slightly increased risk of temporary wheezing in infancy. In contrast, being second-born or later is associated with marginal protection against asthma. These associations appear to have weakened since the turn of the millennium, possibly due to lifestyle changes and socioeconomic development. Video Abstract.
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