Journal
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
Volume 16, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/ijerph16162957
Keywords
dietary patterns; pregnancy; congenital heart defects; case-control; principal component factor analysis
Funding
- National Natural Science Foundation of China [81230016]
- Shaanxi Health and Family Planning Commission [Sxwsjswzfcght2016-013]
- National Key R&D Program of China [2017YFC0907200, 2017YFC0907201]
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Limited studies investigating the relationships between dietary patterns and congenital heart defects (CHDs) are available. This study aimed to explore the associations between dietary patterns and CHDs risk in Shaanxi, China. We conducted a hospital-based case-control study and included a total of 474 cases and 948 controls. Pregnant women waiting for delivery in the hospital were interviewed to report their diets during pregnancy using a validated food frequency questionnaire. Dietary patterns were derived using principal component factor analysis. Mixed logistic regression models were used to assess the associations between dietary patterns and CHDs. Pregnant women in the highest tertile of the prudent pattern had a lower risk of CHDs compared to those in the lowest tertile (OR = 0.65, 95%CI: 0.48-0.89). Pregnant women with high scores on the vegetarian pattern were at an increased risk of CHDs (medium vs. lowest tertile: OR = 1.50, 95%CI = 1.03-2.17; highest vs. lowest tertile: OR = 1.56, 95%CI = 1.13-2.15; p(trend) = 0.015). Pregnant women with high scores on the dairy and egg pattern were at a reduced risk of CHDs (medium vs. lowest tertile: OR = 0.66, 95%CI = 0.49-0.90; highest vs. lowest tertile: OR = 0.60, 95%CI = 0.43-0.82; p(trend) = 0.001). Maternal diet during pregnancy is an important target for intervention, and it may influence the likelihood of developing CHDs.
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