Vitamin D status at birth among pregnant women and their newborns in Jordan: a cross-sectional study - Report - MDSpire

Vitamin D status at birth among pregnant women and their newborns in Jordan: a cross-sectional study

  • By

  • Rawan A. Obeidat

  • Baraa Sakee

  • Shahd Alguzo

  • Sakhr Alshwayyat

  • Omar F. Altal

  • Hasan Rawashdeh

  • June 9, 2026

  • 0 min

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Clinical Report: Assessment of Vitamin D Levels in Pregnant Women and Their Newborns

Overview

This study highlights a significant prevalence of vitamin D insufficiency among pregnant women and their newborns in Jordan, with 99.7% of maternal and 99.5% of cord blood samples below 20 ng/mL. The findings underscore the need for targeted screening and supplementation strategies.

Background

Vitamin D deficiency during pregnancy is associated with various adverse outcomes, including gestational diabetes and small-for-gestational-age births. Understanding vitamin D levels in pregnant populations is crucial for improving maternal and neonatal health. This study addresses a gap in knowledge regarding vitamin D status among pregnant women in Jordan.

Data Highlights

GroupVitamin D Level (ng/mL)Statistical Significance
Maternal9.86 [8.32–11.17]-
Cord Blood10.12 [8.58–11.01]-
Summer Delivery11.76 [10.87–12.41]p < 0.001
Winter Delivery9.39 [7.71–10.19]-
SGA Neonates9.3 [6.70–10.51]p = 0.046
Non-SGA Neonates10.19 [8.76–11.05]-

Key Findings

  • 99.7% of maternal blood samples had vitamin D levels below 20 ng/mL.
  • 99.5% of cord blood samples were also below 20 ng/mL.
  • Only 19.1% of women reported vitamin D supplementation during pregnancy.
  • Maternal vitamin D levels were significantly higher in women who delivered in summer compared to winter.
  • Cord blood vitamin D levels were lower in small-for-gestational-age neonates compared to non-SGA neonates.
  • Maternal and cord blood vitamin D levels were positively correlated (Spearman’s rho = 0.357).

Clinical Implications

The high prevalence of vitamin D insufficiency in this cohort suggests a need for routine screening and supplementation strategies for pregnant women in Jordan. Healthcare providers should consider public health interventions to address vitamin D deficiency during pregnancy.

Conclusion

The findings indicate a critical need for improved vitamin D status among pregnant women and their newborns in Jordan. Further research and public health initiatives are essential to mitigate the risks associated with vitamin D deficiency.

Related Resources & Content

  1. Endocrine Reviews, 2023 -- Effects of Maternal Vitamin D Supplementation on Childhood Health
  2. Frontiers in Medicine, 2026 -- Vitamin D-related genetic variants as predictive biomarkers for breast cancer in Jordanian women
  3. The Journal of Clinical Endocrinology & Metabolism, 2025 -- Impact of Prenatal Air Pollution Exposure on Maternal Vitamin D Status: A Meta-Analytical Review
  4. JAMA Network Open, 2023 -- High-Dose Vitamin D 3 Supplementation During Pregnancy and Test-Based Cognitive Performance at Age 10 Years
  5. Vitamin D for the Prevention of Disease | Endocrine Society, 2024
  6. The Effects of Vitamin D Supplementation During Pregnancy on Maternal, Neonatal, and Infant Health: A Systematic Review and Meta-analysis - PMC, 2023
  7. Maternal vitamin D and genetic variants determine cord blood vitamin D levels in newborn | Pediatric Research, 2025
  8. Vitamin D for the Prevention of Disease | Endocrine Society
  9. The Effects of Vitamin D Supplementation During Pregnancy on Maternal, Neonatal, and Infant Health: A Systematic Review and Meta-analysis - PMC
  10. Maternal vitamin D and genetic variants determine cord blood vitamin D levels in newborn | Pediatric Research

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