Nutr Rev. 1993 Jun;51(6):183-5. doi: 10.1111/j.1753-4887.1993.tb03099.x.
In a study of very old women (mean age = 84 years), supplementation with 1.2 g of calcium and 800 IU of vitamin D3 daily for 18 months reduced the incidence of nonvertebral fractures by 30% and of hip fractures by 41%. This study demonstrates that calcium and vitamin D3 supplementation of very old women with low calcium intakes and low serum 25-hydroxyvitamin D3 levels slows bone loss and reduces the incidence of fracture at nonvertebral sites.
在一项针对高龄女性（平均年龄 = 84岁）的研究中，每天补充1.2克钙和800国际单位维生素D3，持续18个月，可使非椎骨骨折的发生率降低30%，髋部骨折的发生率降低41%。这项研究表明，对钙摄入量低且血清25-羟维生素D3水平低的高龄女性补充钙和维生素D3，可减缓骨质流失，并降低非椎骨部位的骨折发生率。
