Assessing the Prevalence of Nutrient Inadequacy
讨论如何估计人群中营养素缺乏的比例，提出一种只需知道平均需要量和日常摄入量分布的方法，并说明其适用条件。
The author discusses the problem of estimating the proportion of the population at risk of nutrient deficiency. While different analytical approaches to the problem have been proposed, it appears that, ideally, such an estimate would require knowledge about the joint distribution of usual intakes and nutrient requirements. The author proposes an alternative method in which it would suffice to know the mean of the requirement distribution (EAR) together with the distribution of usual intakes in the population. The paper outlines the assumptions that must hold in order for this method to be effective.