目的:描述经挑选的伦敦某区域内儿童维生素D 缺乏的不同方式,确定哪些因素决定其症状的类型。方法:回顾性地分析1996-2001年间纽汉综合医院、伦敦皇家医院、大欧墨德街区医院及王室大学医院就诊的因维生素D缺乏而引起的低钙血症或佝偻病患儿。儿童血浆中25-羟维生素D水平<25 nmol/L(10 μg/L)时考虑有维生素D缺乏。结果:65名儿童被确认为维生素D缺乏,大部分来自于黑人或亚洲少数民族,其中29名 Objectives: Describe the different ways in which children in a select area of ​​London are deprived of vitamin D and determine which factors determine the type of symptoms. Methods: A retrospective analysis of neonates with hypocalcemia or rickets due to vitamin D deficiency during 1996-2001 at Newham General Hospital, Royal London Hospital, Greater Moors Neighborhood Hospital and Royal College Hospital was performed. Vitamin D deficiency is considered when plasma 25-hydroxyvitamin D levels are <25 nmol / L (10 μg / L) in children’s plasma. Results: Sixty-five children were identified as vitamin D deficient, mostly from black or Asian minorities, of whom 29