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  • Author: Mathilde Egelund Christensen x
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Søs Dragsbæk Larsen, Christine Dalgård, Mathilde Egelund Christensen, Sine Lykkedegn, Louise Bjørkholt Andersen, Marianne Andersen, Dorte Glintborg and Henrik Thybo Christesen


Low foetal vitamin D status may be associated with higher blood pressure (BP) in later life.


To examine whether serum 25-hydroxyvitamin D2+3 (s-25OHD) in cord and pregnancy associates with systolic and diastolic BP (SBP; DBP) in children up to 3 years of age.


Prospective, population-based cohort study.


We included 1594 singletons from the Odense Child Cohort with available cord s-25OHD and BP data at median age 3.7 months (48% girls), 18.9 months (44% girls) or 3 years (48% girls). Maternal s-25OHD was also assessed at gestational ages 12 and 29 weeks. Multiple regression models were stratified by sex a priori and adjusted for maternal educational level, season of birth and child height, weight and age.


In 3-year-old girls, SBP decreased with −0.7 mmHg (95% CI −1.1; −0.3, P = 0.001) and DBP with −0.4 mmHg (95% CI −0.7; −0.1, P = 0.016) for every 10 nmol/L increase in cord s-25OHD in adjusted analyses. Moreover, the adjusted odds of having SBP >90th percentile were reduced by 30% for every 10 nmol/L increase in cord s-25OHD (P = 0.004) and by 64% for cord s-25OHD above the median 45.1 nmol/L (P = 0.02). Similar findings were observed between pregnancy s-25OHD and 3-year SBP, cord s-25OHD and SBP at 18.9 months, and cord s-25OHD and DBP at 3 years. No consistent associations were observed between s-25OHD and BP in boys.


Cord s-25OHD was inversely associated with SBP and DBP in young girls, but not in boys. Higher vitamin D status in foetal life may modulate BP in young girls. The sex difference remains unexplained.