Vitamin D deficiency in infants and young children born to migrant parents

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Abstract
To determine the current modes of presentation for the development of nutritional vitamin D deficiency in Melbourne children. A retrospective descriptive review was undertaken of the case records of children less than 5 years of age discharged from three Melbourne hospitals with a diagnosis of vitamin D deficiency or hypocalcaemia from January 1992 to January 1994. The study identified 13 infants and young children whose hospital admission was related to nutritional vitamin D deficiency. Significant morbidity and a broad spectrum of biochemical and clinical features were noted at presentation. All children had migrant parents and were either exclusively or predominantly breast fed. Ten infants (77%) were less than 1 year at presentation. Associated deficiencies of iron and B12 were present in five cases. Of the five mothers tested, serum 25-hydroxy vitamin D3 was low in four. Nutritional vitamin D deficiency is a continuing health problem in infants and young children born to migrant parents living in Melbourne. Paediatricians, obstetricians and general practitioners, particularly those managing women and infants from migrant communities, should be aware of this condition. Vitamin D supplementation to high-risk women during pregnancy and to their infants should be considered.