National Neural Tube Defects Prevention Program in China

Area of Science:

• Public Health
• Obstetrics & Gynecology
• Genetics & Genomics

Background:

• Neural tube defects (NTD) are a major cause of infant mortality in China, with Northern China exhibiting the highest global rates.
• Geographic and seasonal variations in folate status among Chinese women of childbearing age were observed, with lower levels in the north and during spring.
• Low folate levels are a significant risk factor for NTD.

Purpose of the Study:

• To evaluate the effectiveness of daily 400 microg folic acid supplementation in preventing NTD in Chinese women of childbearing age.
• To assess the impact of folic acid on NTD rates in both Northern and Southern China.
• To inform public health strategies for birth defect prevention.

Main Methods:

• A large-scale study conducted by Peking University Health Science Center and the US CDC.
• Involved daily supplementation of 400 microg folic acid for women preparing for marriage.
• Compared NTD rates in supplemented groups versus control groups (implied).

Main Results:

• A significant reduction in NTD risk by 85% in the northern region and 40% in the southern region among fetuses/infants of women taking periconceptional folic acid.
• Daily folic acid intake also showed potential to reduce the risk of nonsyndromic orofacial clefts.
• No evidence of increased risk for miscarriage or twinning associated with folic acid consumption.

Conclusions:

• Daily 400 microg folic acid supplementation is highly effective in preventing NTD in China, particularly in high-risk northern regions.
• The findings support the integration of folic acid supplementation into national public health initiatives for birth defect reduction.
• Public health campaigns are vital for improving birth outcomes and ensuring healthy babies.