1. Maternal B-vitamin intake and B-vitamin supplementation during pregnancy in relation to neonatal congenital heart defects: a case-control study with propensity score matching
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Zhang, Ruo, Guo, Leqian, Zhao, Doudou, Qu, Pengfei, Dang, Shaonong, and Yan, Hong
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Physiological aspects ,Health aspects ,Congenital heart defects -- Physiological aspects ,Pregnancy -- Health aspects ,Vitamin B complex -- Health aspects ,Congenital heart disease -- Physiological aspects ,Vitamin B -- Health aspects - Abstract
Author(s): Ruo Zhang [sup.1] , Leqian Guo [sup.2] , Doudou Zhao [sup.3] , Pengfei Qu [sup.3] , Shaonong Dang [sup.4] [sup.5] , Hong Yan [sup.4] [sup.5] [sup.6] Author Affiliations: (1) [...], Background/Objectives The effect of dietary folate intake or folic acid (FA) supplementation during pregnancy on neonatal congenital heart defects (CHDs) remains inconclusive. There are limited data about non-folate-B-vitamin intake and the risk of CHDs. Furthermore, few studies have investigated dietary B-vitamin intake and B-vitamin supplement use simultaneously in relation to the risk of CHDs. This study aimed to explore the associations between maternal folate, vitamin B.sub.6, and vitamin B.sub.12 intake (dietary intake, total intake from diet and supplements); B-vitamin supplement use during pregnancy; and the risk of CHDs using the propensity score matching (PSM) method. Methods We conducted a case-control study and included 760 cases and 1600 controls in Shaanxi Province, China. Diet, supplement use and other information were collected through a questionnaire interview. By using the 1:2 ratio PSM method, 396 cases were matched with 792 controls. Conditional logistic regression was used to investigate the associations between maternal B-vitamin intake and supplement use during pregnancy and CHDs. Results Higher maternal dietary and total intake of folate and vitamin B.sub.12 were associated with reduced risk of CHDs, and the tests for linear trend were significant. Compared with non-users, maternal FA + VB.sub.6 + VB.sub.12 containing supplement use during pregnancy (OR 0.61, 95%CI 0.40-0.94), FA supplement use during pregnancy (OR 0.70, 95%CI 0.50-0.98) and in the first trimester (OR 0.62, 95%CI 0.46-0.85) were associated with a lower risk of CHDs. Conclusions The findings of this study suggest that a higher intake of folate and vitamin B.sub.12 during pregnancy reduces the risk of CHDs.
- Published
- 2021
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