Latent Class Analysis of Complex Sample Survey Data
复杂抽样调查数据的潜类别分析
High fruit and vegetable intake is associated with decreased cancer risk. However, dietary recall data from national surveys suggest that, on any given day, intake falls below the recommended minima of three daily servings of vegetables and two daily servings of fruit. There is no single widely accepted measure of “usual” intake. One approach is to regard the distribution of intake as a mixture of “regular” (relatively frequent) and “nonregular” (relatively infrequent)…