This paper describes a two-part statistical model that uses information from two 24-hour recalls to estimate the usual intake distribution of episodically consumed foods; the method allows for correlation between the probability of consumption and the consumption amount. The statistical approach described in this paper is the approach used for the "NCI method" of analysis for quantititative 24-hour dietary recall data.
Intake’s online resource library has been developed to provide easy access to grey literature and links to peer reviewed journal articles that are relevant to the collection, analysis, and use of dietary data in low- and middle-income countries. The library includes Intake technical reports and briefs, guidance documents, survey planning tools, and videos, as well as access to a curated set of publications and tools authored by others. Users should note that Intake's online resource library is still under development. Once completed, the resource library will be updated periodically.