High Prevalence of Hypovitaminosis D in Pregnant Women with Threatened Premature Delivery
In a study involving 93 pregnant women (after the 30th week of gestation) in Japan, out of which 10 were found to have severe vitamin D deficiency (<10 ng/mL), and out of which 85 (89.5%) were found to have hypovitaminosis D (serum 25(OH)D less than 20 ng/mL), mothers with threatened premature delivery were found to have significantly lower 25(OH)D levels (11.2 ng/ml) than those in mothers with normal delivery (15.6 ng/mL). The authors state, "the present data suggest a high prevalence of hypovitaminosis D in perinatal pregnant Japanese women throughout the year, which seems to affect bone metabolism and to be associated with threatened premature delivery."
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