Estimated Correlations Among Days for the Combined 1989-91 CSFII. Dietary Assessment Research Series Report 4
提出一种两步法，用于在连续日膳食数据中平滑估计营养素摄入的日间相关性及其标准误，帮助研究者更准确评估人群营养素摄入不足或过量的比例。
Data obtained from dietary intake surveys are often used to estimate the proportion of the population with insufficient (or excessive) intake of certain dietary components. The authors present a two-step method for obtaining smooth estimates of day-to-day correlations for nutrient intake, and their standard errors, when dietary data are collected on consecutive days.