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Maternal folic acid supplementation and more prominent birth weight gain in twin birth compared with singleton birth: a cross-sectional study in northwest China.


ABSTRACT:

Objective

To investigate the association of folic acid (FA) supplementation with birth weight, the risk of small for gestational age (SGA) and low birth weight (LBW) in singleton and twin pregnancy.

Design

A population-based cross-sectional survey.

Setting

Twenty counties and ten districts in Shaanxi Province of northwestern China, 2013.

Participants

28 174 pregnant women with their infants, covering 27 818 single live births and 356 twin live births.

Results

The prevalence of FA supplementation in singletons and twins was 63·9 and 66·3 %. The mean birth weight was 3267 (sd 459·1) g, 2525 (sd 534·0) g and 2494 (sd 539·5) g; the prevalence of SGA was 14·3, 51·4 and 53·4 %; the prevalence of LBW was 3·4, 42·4 and 46·6 % among singleton, twin A and twin B, respectively. Compared with non-users, women with FA supplementation were (β 17·3, 95 % CI 6·1, 28·4; β 166·3, 95 % CI 69·1, 263·5) associated with increased birth weight, lower risk of SGA (OR 0·85, 95 % CI 0·80, 0·92; OR 0·45, 95 % CI 0·30, 0·68) and LBW (OR 0·82, 95 % CI 0·71, 0·95; OR 0·50, 95 % CI 0·33, 0·75) in singletons and twins, and more prominent effects in twins. Moreover, there were significant interactions between FA supplementation and plurality on birth weight, SGA and LBW.

Conclusions

The present study suggests the association of periconceptional 0·4 mg/d FA supplementation with increased birth weight and reduced risk of SGA and LBW in both singletons and twins, and this association may be more prominent in twins.

SUBMITTER: Zhang B 

PROVIDER: S-EPMC10200502 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Publications

Maternal folic acid supplementation and more prominent birth weight gain in twin birth compared with singleton birth: a cross-sectional study in northwest China.

Zhang Binyan B   Shang Suhang S   Li Shanshan S   Mi Baibing B   Li Minmin M   Shi Guoshuai G   Ma Mao M   Wang Qian Q   Yan Hong H   Dang Shaonong S  

Public health nutrition 20200417 16


<h4>Objective</h4>To investigate the association of folic acid (FA) supplementation with birth weight, the risk of small for gestational age (SGA) and low birth weight (LBW) in singleton and twin pregnancy.<h4>Design</h4>A population-based cross-sectional survey.<h4>Setting</h4>Twenty counties and ten districts in Shaanxi Province of northwestern China, 2013.<h4>Participants</h4>28 174 pregnant women with their infants, covering 27 818 single live births and 356 twin live births.<h4>Results</h4>  ...[more]

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