Fig. 3From: Evaluation of the association between maternal folic acid supplementation and the risk of congenital heart disease: a systematic review and meta-analysisPossible association between maternal FA supplementation and ASD. FA: folic acid; ASD: atrial septal defects; A. Odd ratio (OR) estimates for the overall association of maternal FA supplementation with the risk of ASD; B. OR estimates for the association between Maternal folic acid supplement intake and ASD; C. OR estimates for the association between the initiation of folic acid supplementation on ASD; D. Estimated OR of the association between folic acid supplementation time and ASDBack to article page