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方法资料来源:Medline和Cochrane对照试验注册库(1960年1月至2004年2月),EMBASE／ExcerptaMedica数据库(1991年1月至2004年2月),美国骨和矿物研究协会会议摘要(1995年至2002年),回顾了相关研究的参考文献,并对未发表的研究联系了该领域的专家。研究的选取和评估:随机对照试验(RCTs),对社区内或已收入院的老年人预防性使用任何剂型的维生素D,并与对照组相比较。参加者平均年龄须≥60岁;另外,试验方法必须具体说明如何定义和确定跌倒(结果)。在试验选择完毕后,要进一步评估其研究质量,从隐匿分配、盲法、退出试验等方面逐一描述。
Methods Source: Medline and Cochrane Controlled Trials Registry (January 1960-February 2004), EMBASE / ExcerptaMedica Database (January 1991-February 2004), Summary of the American Association for Bone and Mineral Research (1995 To 2002), reviewed references from related research, and contacted experts in the field for unpublished research. SELECTION AND EVALUATION OF THE RESEARCH: Randomized controlled trials (RCTs) were used prophylactically for any dosage form of vitamin D in the elderly in the community or in the hospital, compared with controls. The average age of participants must be ≥60 years of age; in addition, the test method must specify how to define and determine the fall (outcome). After the test is finished, we should further evaluate the quality of the research and describe each one from the aspects of hidden distribution, blind method, exit test and so on.