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Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
Published on: June 28, 2024
Peri-Conceptional Folic Acid Supplementation and Children's Physical Development: A Birth Cohort Study
Shanshan Zhang1,2,3,4, Mengting Yang1,2,3,4, Xuemei Hao1,2,3,4
1Department of Maternal, Child & Adolescent Health, School of Public Health, Anhui Medical University, Hefei 230032, China.
Insights
Maternal folic acid supplementation before and during early pregnancy is linked to healthier child development. Lack of folic acid is associated with higher BMI and body fat trajectories in preschool children.
Area of Science:
- Maternal and child health
- Nutritional epidemiology
- Developmental pediatrics
Background:
- Maternal folic acid supplementation is crucial during pregnancy, potentially impacting offspring development.
- Limited data exists on the long-term effects of prenatal folic acid on children's physical development.
- This study investigates the association between maternal folic acid intake and physical development in preschool children.
Purpose of the Study:
- To explore the association between maternal folic acid supplementation status during pregnancy and the physical development of preschool children.
- To identify potential risks related to inadequate folic acid intake during early pregnancy.
- To provide insights into the importance of prenatal nutrition for long-term child health outcomes.
Main Methods:
- Utilized data from 3064 mother-child pairs in the Ma'anshan-Anhui Birth Cohort (MABC) study.
- Assessed maternal folic acid supplementation status before and during pregnancy as the primary exposure.
- Employed group-based trajectory models and multiple logistic regression to analyze children's anthropometric measurements and growth trajectories (BMI-Z scores, body fat ratio).
Main Results:
- Maternal non-supplementation with folic acid before and in the first trimester was significantly associated with higher BMI-Z score trajectories (OR=1.423, OR=1.654) in children aged 0-6 years.
- Absence of folic acid supplementation was also linked to a high body fat ratio trajectory (OR=1.833) in children aged 4-6 years.
- No significant benefits for physical development were observed with folic acid supplementation beyond the first trimester.
Conclusions:
- Maternal folic acid non-supplementation during early pregnancy is associated with adverse physical development trajectories in preschool children.
- Specifically, it is linked to higher Body Mass Index (BMI)-Z scores and increased body fat ratio.
- These findings underscore the critical importance of adequate folic acid intake during the preconception period and the first trimester of pregnancy for optimal child physical development.
Background:
Maternal lack of folic acid supplementation during pregnancy may increase the risk of low birth weight and preterm delivery. However, little is known about the relationship between folic acid supplementation during pregnancy and the physical development of offspring in the later stage.
Objective:
This study aimed to explore the association between maternal folic acid supplementation status during pregnancy and the physical development of preschool children.
Methods:
A total of 3064 mother-child pairs with data on maternal folic acid supplementation status during pregnancy and children's anthropometric measurements were recruited from the Ma'anshan-Anhui Birth Cohort (MABC) in China. Maternal folic acid supplementation status during pregnancy was the main exposure, and the primary outcomes were children's growth development trajectories. Children's growth development trajectories were fitted using group-based trajectory models. The association between maternal folic acid supplementation status during pregnancy and children's growth trajectories was performed using multiple logistic regression models.
Results:
After adjusting for potential confounders, we found that the absence of maternal folic acid supplementation before pregnancy and in the first trimester was significantly associated with a "high level" trajectory (trajectory 3) and a "high rising level" trajectory (trajectory 4) of BMI-Z scores in children 0 to 6 years of age (OR = 1.423, 95%CI:1.022-1.982; OR = 1.654, 95%CI: 1.024-2.671). In children aged 4 to 6 years old, a "high level" trajectory (trajectory 3) of body fat ratio was substantially related to maternal no folic acid supplementation before pregnancy and in the first trimester (OR = 1.833, 95%CI:1.037-3.240). No significant additional benefits associated with physical developmental indicators in preschool children have been observed with continued folic acid supplementation after the first trimester of gestation.
Conclusions:
Maternal non-supplementation with folic acid during pregnancy is associated with a "high level" BMI trajectory and a "high level" body fat ratio trajectory in preschool-aged children.
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