Taiwanese Journal of Obstetrics and Gynecology · 2019 · 13 citations · 35 references
We found a high incidence of 25(OH)D deficiency in Turkish pregnant women. Adolescent age and low 25(OH)D levels are significant risk factors for PTD and SGA. Effective prophylaxis programs for vitamin D deficieny and/or fortification of foods with vitamin D are essential in pregnant women especially in the winter season.
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Evelien R. Leffelaar, Tanja G. M. Vrijkotte, Manon van Eijsden · British Journal Of Nutrition · 2010 · 358 citations · Full text
The dependency of vitamin D status on body mass index, gender, age and season
Z Lagunova, A Porojnicu, F Lindberg et al. · Obesity and metabolism · 2009 · 355 citations · Full text