Lemeshow S, Taber S
Department of Biostatistics and Epidemiology, School of Public Health, University of Massachusetts, Amherst.
World Health Stat Q. 1991;44(3):115-32.
Lot quality assurance sampling (LQAS) was originally developed for industrial applications. This article discusses the extension of its application to a public health setting. When resources must be allocated to several communities based on whether or not each exceeds a target proportion of members with a characteristic, a sampling scenario arises which is different to the standard parameter estimation scenario. LQAS is an efficient procedure for sampling in this instance. Under certain conditions, double sampling may further enhance the efficiency of an LQAS plan. LQAS is discussed and illustrated by examples, and the theoretical foundations of single and double lot quality assurance sampling are presented. Examples of sample size and critical value tables are also presented.
批质量保证抽样（LQAS）最初是为工业应用而开发的。本文讨论了将其应用扩展到公共卫生环境的情况。当必须根据每个社区是否超过具有某一特征成员的目标比例将资源分配给多个社区时，就会出现一种与标准参数估计情况不同的抽样情形。在这种情况下，LQAS是一种有效的抽样程序。在某些条件下，双重抽样可能会进一步提高LQAS计划的效率。本文通过示例对LQAS进行了讨论和说明，并介绍了单批和双批质量保证抽样的理论基础。还给出了样本量和临界值表的示例。
