Maternal Vitamin D Deficiency and Its Effects on Pregnancy Outcomes

Area of Science:

• Obstetrics and Gynecology
• Nutritional Science
• Public Health

Background:

• Vitamin D deficiency is a widespread global issue impacting maternal and fetal health.
• Adequate vitamin D is essential for fetal development, immune function, and mitigating adverse pregnancy outcomes.
• Understanding the prevalence and impact of vitamin D deficiency in pregnant populations is critical for public health strategies.

Purpose of the Study:

• To investigate the association between vitamin D deficiency and pregnancy complications in a Malaysian cohort.
• To determine the prevalence of vitamin D deficiency among pregnant women in Malaysia.
• To explore the relationship between vitamin D status and specific adverse pregnancy outcomes.

Main Methods:

• A prospective observational study involving 414 pregnant women in Malaysia.
• Data collection included questionnaires on sociodemographics, anthropometric measurements, vitamin D risk factors, and pregnancy outcomes.
• Serum vitamin D levels were quantified using electrochemiluminescence immunoassay (ECLIA).

Main Results:

• The prevalence of vitamin D deficiency was high at 64.7%, with a median daily intake below recommended levels.
• Significant associations were found between vitamin D deficiency and gestational hypertensive disorders, preterm birth, and Group B Streptococcus carriage.
• Maternal vitamin D consumption was linked to a reduced likelihood of gestational hypertensive disorders, Group B Streptococcus carriage, and cesarean sections.

Conclusions:

• Maternal vitamin D deficiency is significantly associated with an increased risk of gestational hypertensive disorders, Group B Streptococcus carriage, and cesarean sections.
• The findings suggest a potential link between vitamin D deficiency and adverse pregnancy outcomes.
• Further interventional studies are recommended to establish causality, while promoting adequate maternal vitamin D status is advised.