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Usual Dietary Intakes: Further Information

Importance of Estimating Usual Intake Distributions

Freedman LS, Midthune D, Carroll RJ, Krebs-Smith S, Subar AF, Troiano RP, Dodd K, Schatzkin A, Bingham SA, Ferrari P, Kipnis V. Adjustments to improve the estimation of usual dietary intake distributions in the population. J Nutr 2004 Jul;134(7):1836-43. Erratum in: J Nutr 2005 Jun;135(6):1524.

Importance of Accounting for Measurement Error in Estimating Diet-Health Relationships

Freedman LS, Schatzkin A, Midthune D, Kipnis V. Dealing with dietary measurement error in nutritional cohort studies. J Natl Cancer Inst 2011 Jul;103(14):1086-92.

Review of Methods

Dodd KW, Guenther PM, Freedman LS, Subar AF, Kipnis V, Midthune D, Tooze JA, Krebs-Smith SM. Statistical methods for estimating usual intake of nutrients and foods: a review of the theory. J Am Diet Assoc 2006 Oct;106(10):1640-50. Review.

The NCI Method

Estimating distributions of a single dietary component

Tooze JA, Midthune D, Dodd KW, Freedman LS, Krebs-Smith SM, Subar AF, Guenther PM, Carroll RJ, Kipnis V. A new statistical method for estimating the usual intake of episodically consumed foods with application to their distribution. J Am Diet Assoc 2006 Oct;106(10):1575-87.

Tooze JA, Kipnis V, Buckman DW, Carroll RJ, Freedman LS, Guenther PM, Krebs-Smith SM, Subar AF, Dodd KW. A mixed-effects model approach for estimating the distribution of usual intake of nutrients: the NCI method. Stat Med 2010 Nov 30;29(27):2857-68.

Estimating distributions of two or more dietary components

Freedman LS, Guenther PM, Dodd KW, Krebs-Smith SM, Midthune D. The population distribution of ratios of usual intakes of dietary components that are consumed every day can be estimated from repeated 24-hour recalls. J Nutr 2010 Jan;140(1):111-6.

Freedman LS, Guenther PM, Krebs-Smith SM, Dodd KW, Midthune D. A population's distribution of Healthy Eating Index–2005 component scores can be estimated when more than one 24-hour recall is available. J Nutr 2010 Aug;140(8):1529-34.

Zhang S, Krebs-Smith SM, Midthune D, Perez A, Buckman D, Kipnis V, Freedman LS, Dodd KW, Carroll RJ. Fitting a bivariate measurement error model for episodically consumed dietary components. Intl J Biostat 2011;7(1):Article 1.

Zhang S, Midthune D, Guenther PM, Krebs-Smith SM, Kipnis V, Dodd KW, Buckman DW, Tooze JA, Freedman L, Carroll RJ. A new multivariate measurement error model with zero-inflated dietary data, and its application to dietary assessment. Ann Appl Stat 2011 Jun;5(2B):1456-87.

Use of frequency information as a covariate in a model to estimate usual intakes

Subar AF, Dodd KW, Guenther PM, Kipnis V, Midthune D, McDowell M, Tooze JA, Freedman LS, Krebs-Smith SM. The food propensity questionnaire: concept, development, and validation for use as a covariate in a model to estimate usual food intake. J Am Diet Assoc 2006 Oct;106(10):1556-63.

Evaluating relationships between usual intakes and health outcomes

Kipnis V, Midthune D, Buckman DW, Dodd KW, Guenther PM, Krebs-Smith SM, Subar AF, Tooze JA, Carroll RJ, Freedman LS. Modeling data with excess zeros and measurement error: application to evaluating relationships between episodically consumed foods and health outcomes. Biometrics 2009 Dec;65(4):1003-10.

Combining self-report intake data with biomarker data

Freedman LS, Kipnis V, Schatzkin A, Tasevska N, Potischman N. Can we use biomarkers in combination with self-reports to strengthen the analysis of nutritional epidemiologic studies? Epidemiol Perspect Innov 2010 Jan;7(1):2.

Freedman LS, Tasevska N, Kipnis V, Schatzkin A, Mares J, Tinker L, Potsichman N. Gains in statistical power from using a dietary biomarker in combination with self-reported intake to strengthen the analysis of a diet-disease relationship – an example from CAREDS. Am J Epidemiol 2010 Oct; 172(7):836-42.

Last Modified: 18 Oct 2013