A new statistical method for estimating the usual intake of episodically consumed foods with application to their distribution.

ABSTRACT:

Objective

We propose a new statistical method that uses information from two 24-hour recalls to estimate usual intake of episodically consumed foods.

Statistical analyses performed

The method developed at the National Cancer Institute (NCI) accommodates the large number of nonconsumption days that occur with foods by separating the probability of consumption from the consumption-day amount, using a two-part model. Covariates, such as sex, age, race, or information from a food frequency questionnaire, may supplement the information from two or more 24-hour recalls using correlated mixed model regression. The model allows for correlation between the probability of consuming a food on a single day and the consumption-day amount. Percentiles of the distribution of usual intake a

SUBMITTER: Tooze JA 

PROVIDER: S-EPMC2517157 | biostudies-literature | 2006 Oct

REPOSITORIES: biostudies-literature