Prevalence of Vitamin D Deficiency in Early Pregnancy: A Cross-Sectional Study at a Tertiary Care Center

December 29, 2025

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Key Points

This study aims to determine the prevalence of vitamin D deficiency and its associated factors in early pregnancy.
Conducted a retrospective analysis of 1105 pregnant women visiting an antenatal clinic from January 2020 to January 2024.
Classified vitamin D status into sufficient, insufficient, and deficient categories.
Evaluated 25(OH)D serum levels based on age, season, and month.
The median age of participants was 29 years, with a range of 17-50 years.
The median serum 25(OH)D level was found to be 11.1 ng/mL, with an average of 13.7 ± 9.2 ng/mL.
Vitamin D deficiency was categorized as mild, moderate, and severe among the participants.

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Cross-sectional study assesses vitamin D deficiency prevalence in first trimester women, indicating health implications.

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Kahyaoğlu et al. (2025) studied this question.

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