Hypovitaminosis D and mild hypocalcaemia are highly prevalent among young Vietnamese children and women and related to low dietary intake

2013

Article référencé dans le Web of Science WOS:000319385300029

Laillou A., Wieringa Franck, Tran T. N., Van P. T., Le B. M., Fortin Sonia, Le T. H., Pfanner R. M., Berger Jacques

Plos One, 2013, 8 (5), p. e63979 ISSN 1932-6203

Introduction: In many developing countries including Vietnam, data are lacking on vitamin D and calcium deficiencies whereas those deficiencies can play an important role in the development of bone health and possibly non-communicable diseases. The purpose of this study was to determine the overall prevalence of vitamin D and calcium deficiencies in women and young children and their nutritional related risk factors. Methods: A cross-sectional study conducted among 595 women of reproductive age and 532 children,5 years from 19 provinces of Vietnam. For each individual, data concerning daily diet, socioeconomic group, anthropometric status were obtained, and plasma concentrations of calcium and vitamin D were measured. Results: The prevalence of hypovitaminosis D status was very high, with the prevalence of vitamin D deficiency (25(OH) D, 30 nmol/L) and insufficiency (25(OH) D between 30-49.9 nmol/L) being 17% and 40% in women and 21% and 37% in children, respectively. Using more liberal cut-off of 75 nmol/L, approximately 90% of the women and children were classified as having hypovitaminosis D. Overweight/obese women had a 2 times lower risk (OR = 0.46, [0.24-0.90]) for vitamin D deficiency than non-overweight and non-obese women. No participant had severe calcium deficiency but moderate and mild hypocalcaemia (plasma calcium concentrations between 1.15-0.9 mmol/L for mild deficiency and between 0.9-0.8 mmol/L for moderate deficiency) affected respectively 14% and 83% of the women with 97% of the children having mild hypocalcaemia. Women and children consumed about 1% of the Institute of Medicine (IOM) recommended nutrient intake (RNI) for vitamin D and less than 43% of the RNI for calcium. Conclusion: Our study suggests that calcium and vitamin D deficiencies represent a major public health concern in Vietnam. Thus, actions to improve the vitamin D and calcium status of the Vietnamese population should be considered.

Nutrition, alimentation [054]

VIET NAM

Fonds IRD [F B010060380]

fdi:010060380