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针具交换中参加者的“自愿者偏倚”及影响 被引量:4

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摘要 本文主要探讨了在针具交换效果评估时,一种会对评估结果产生影响的偏倚———针具交换参加者“自愿者偏倚”的具体表现和影响范围。首先结合世界范围内针具交换工作的不断开展和相关研究方法的逐步改进的历史,回顾了针具交换参加者“自愿者偏倚”被逐步发现的过程,列举了偏倚涉及的种种因素及其表现;随后探讨了这种偏倚对针具交换效果评估的不良影响,即部分抵消甚至逆转针具交换的保护作用,研究者应予以足够重视;最后指出这种偏倚虽然作为普遍存在,但其特征和影响程度具有多样性,应结合当地特征予以分析。
出处 《中国艾滋病性病》 CAS 2006年第4期390-391,共2页 Chinese Journal of Aids & STD
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参考文献21

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二级参考文献10

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