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Maternal Health & Nutrition

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[Literature library] Factors influencing maternal vitamin D levels in China
A Chinese study has analyzed the influencing factors of maternal vitamin D deficiency among 3,080 pregnant women in Anhui, as well as explored the relationship between maternal vitamin D levels and common adverse pregnancy outcomes.
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[Literature library] Iodine nutrition and timing of iodine supplement initiation
As demands for iodine grow during pregnancy and postpartum, pregnant and lactating women are groups vulnerable to iodine deficiency and subsequent thyroid dysfunction.
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[Literature library] Risk factors for lactation mastitis in China
Approximately 3% to 30% postpartum women suffer from lactation mastitis. The authors systematically summarized risk factors for lactation mastitis among Chinese populations in this meta-analysis.
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Local challenges of maternal and infant nutrition: Prof. Wing Hung Tam
Lecture by Prof. Wing Hung Tam during the HKNA x WNSC HK Online Symposium 2021 highlighting latest dietary data including iron, iodine and vitamin D among local pregnant women and the potential health impact of microbiome.
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[Literature Library] Risk factors for preterm birth
Preterm birth (less than 37 weeks of gestation) is a major cause of perinatal morbidity and mortality. A population-based retrospective cohort study analyzing 334,415 deliveries has examined the influences of various risk factors for extremely preterm birth (24-28 weeks of gestation) and if these changed between different sub-populations with known risk factors. Strongest risk factors for extremely preterm birth were: Placental abruption (OR = 20.606, 95%CI 17.006-24.969, p < 0.001) Multi-gestations (OR = 7.714, 95%CI 6.581-9.042, p < 0.001) Placenta previa (OR = 5.884, 95%CI 4.149-8.344, p < 0.001)   Risk factors for singleton extremely preterm birth included: Placental abruption (OR = 24.619, 95%CI 20.063-30.210, p < 0.001) Placenta previa (OR = 5.845, 95%CI 4.022-8.945, p < 0.001)) Previous preterm birth (OR = 2.305, 95%CI 1.980-2.784, p < 0.001) Nulliparity (OR = 2.226, 95%CI 1.902-2.605, p < 0.001) Lack of prenatal care (OR = 2.136, 95%CI 1.772-2.574, p < 0.001)   Among all groups, placental abruption was the strongest risk factor for extremely preterm birth whereas no significant difference on risk factors between sub-populations was observed
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[Local Data] Gestational weight gain and children’s long-term health
Gestational weight gain (GWG) is closely related to pregnancy outcome as well as the long-term health of both mothers and children. A secondary analysis of birth outcome of Chinese women joined the “Hyperglycemia and Adverse Pregnancy Outcome” study was preformed to understand how optional GWG derived from models based on probabilities of small for gestational age and large for gestational age (model 1), lean and fat infants (model 2) and integration of models 1 and 2 (model 3) versus Institute of Medicine in estimating children’s cardiometabolic risk at 7 years: GWG ranges derived from these models were associated with various numbers of cardiometabolic risk factors: Model 1 – 1 risk factors Model 2 – 8 risk factors Model 3 – 7 risk factors   Optimal GWG derived from model 2 (listed below) was associated with the lowest cardiometabolic risk among children: 14.0-18.5 kg for underweight (BMI < 18.5 kg/m2) Chinese women 9.0-16.5 kg for normal weight (BMI 18.5-23.9 kg/m2) Chinese women 5.0-11.0 kg overweight (BMI 24.0-27.9 kg/m2) Chinese women
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Maternal Dietary Intake and Human Milk Composition
The association of maternal intake of different nutrients and dietary components with human milk composition.
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