ArticleJournal of pregnancy2026
Serum Vitamin D Levels in Pregnant Women: The Role of Supplementation on Preterm Infant Outcomes.
Article in Journal of pregnancy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed.
- Serum Vitamin D Levels in Pregnant Women: The Role of Supplementation on Preterm Infant Outcomes.Journal of pregnancy · 2026Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveVitamin D plays a crucial role in maternal and infant health. This study was aimed at evaluating and comparing serum vitamin D levels and clinical outcomes between preterm mothers who received vitamin D supplements and those who did not.
methodsIn a cross-sectional study, a total of 328 women were enrolled, of whom 310 mother-infant pairs were included in the final analysis. The supplementation group consisted of mothers who consumed at least 1000 international units of vitamin D daily for a minimum of 1 month prior to delivery. Clinical characteristics and neonatal outcomes were compared between the supplementation and nonsupplementation cohorts.
resultsThe mean serum vitamin D levels were significantly higher in the supplementation group for both mothers (23.88 ± 15.66 vs. 12.68 ± 7.37 ng/mL) and their infants (17.55 ± 12.23 vs. 10.38 ± 7.35 ng/mL; p <0.001 for both). Infants in the nonsupplementation group required resuscitation in the delivery room significantly more often (p = 0.019). Furthermore, the incidence of respiratory distress syndrome (p = 0.002) and respiratory problems (p = 0.004) were significantly higher in the nonsupplemented group. No statistically significant differences were observed regarding one- and fifth-minute Apgar scores (p = 0.200 and p = 0.117), birth weight (p = 0.343), or neonatal mortality (p = 0.062).
conclusionsMaternal vitamin D supplementation is associated with higher serum vitamin D levels in both mothers and preterm infants, as well as a reduced prevalence of adverse neonatal respiratory outcomes. These findings underscore the clinical importance of prenatal vitamin D supplementation to promote maternal and neonatal health, particularly in populations with high rates of vitamin D deficiency.
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