Impact of nutrition education on vitamin D nutritional status in pregnant women
10.3760/cma.j.cn115624-20240129-00084
- VernacularTitle:营养教育对孕妇维生素D营养状况的影响
- Author:
Yuping ZHANG
1
;
Rui LI
;
Xiaoqin ZHONG
;
Yanping LIU
Author Information
1. 中国医学科学院 北京协和医学院 北京协和医院临床营养科，北京 100730
- Keywords:
Pregnant women;
Pregnancy;
Vitamin D;
Nutrition education;
Nutritional status
- From:
Chinese Journal of Health Management
2024;18(11):824-829
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the impact of nutrition education on the vitamin D nutritional status of pregnant women.Methods:It was a randomized controlled trial. A total of 96 women with vitamin D deficiency at 8-13 weeks of gestation who were regularly followed-up in the pregnancy nutrition clinic of the Department of Clinical Nutrition of Peking Union Medical College Hospital from January to October 2021 were selected by convenience sampling. The women were divided into a control group and an experimental group (48 cases in each group) according to the random number table method. The control group received routine outpatient treatment and was given different doses of vitamin D supplements according to the degree of vitamin D deficiency. On this basis, the experimental group were given additional nutritional education, including the distribution of vitamin D education manuals at 8-13 weeks of pregnancy, the assessment of vitamin D intake and cognition of vitamin D, the provision of individualized vitamin D nutritional status improvement plans, and the one-time assessment and guidance of vitamin D nutritional status at 24-28 weeks and 36-38 weeks of pregnancy, to continuously promote vitamin D health. Due to factors such as miscarriage or incomplete data acquisition during the study, 44 cases were finally included in the control group and 42 cases in the experimental group. The non-parametric test Mann-Whitney U was used to compare the vitamin D nutritional status of the two groups at 24-28 weeks and 36-38 weeks of pregnancy, and to analyze the effect of nutritional education on the vitamin D nutritional status of pregnant women. Results:At 8-13 weeks of pregnancy, there was no significant difference in serum 25-hydroxyvitamin D [25(OH)D] concentration between the two groups ( P>0.05). At 24-28 weeks of pregnancy, the serum 25(OH)D concentration and the proportion of pregnant women with normal vitamin D nutritional status in the experimental group were both significantly higher than those in the control group [29.90 (24.63, 34.28) vs 25.65 (21.50, 31.28) μg/L, 50.0% vs 29.5%] (both P<0.05). At 36-38 weeks of pregnancy, there was no significant difference in serum 25(OH)D level between the two groups ( P>0.05); however, the proportion of pregnant women with normal vitamin D nutritional status in the control group and the experimental group was 80.5% and 70.7%, respectively, which were both significantly higher than those in 8-13 and 24-28 weeks of pregnancy. The main effect of time was significant in both groups ( F=201.040, P<0.001). Conclusion:Nutrition education can enhance pregnant women′s knowledge of vitamin D, promote behavioral changes, and improve vitamin D nutritional status.
