Brown I R, Bakowska A, Millard P H
Age Ageing. 1976 Aug;5(3):127-31. doi: 10.1093/ageing/5.3.127.
Thirty-nine patients admitted to hospital with fractures of the neck of the femur had mean serum 25-hydroxycholecalciferol (25-(OH)D3) levels markedly lower than that of young healthy controls. There was also a significant seasonal variation in these 25-(OH)D3 levels, values in winter being about half those in summer. It is suggested that vitamin D deficiency plays an an important role in the pathology of old age.
39名因股骨颈骨折入院的患者，其血清25-羟胆钙化醇（25-(OH)D3）平均水平明显低于年轻健康对照组。这些25-(OH)D3水平也存在显著的季节性变化，冬季的值约为夏季的一半。有人认为维生素D缺乏在老年病理学中起重要作用。
