Just how accurately can adequate nutrient intake be measured? Do food consumption surveys really reflect the national diet? This book includes a brief history of dietary surveys, and an analysis of the basis of dietary evaluation and its relationship to recommended dietary allowances. A discussion of how usual dietary intake may be estimated from survey data, a recommended approach to dietary analysis, and an application of the analysis method is presented. Further, an examination of the impact of technical errors, the results of confidence interval calculations, and a summary of the subcommittee's recommendations conclude the volume.
Table of Contents
|1. Executive Summary||1-6|
|3. Nutrient Requirements As A Basis for Dietary Evaluation||10-16|
|4. The Use of Short-Term Dietary Intake Data to Estimate Usual Dietary Intake||17-24|
|5. The Probability Approach||25-40|
|6. Assessing Excessive Intake and Nutrient Energy Ratios||41-47|
|7. Errors in Nutrient Intake Measurement||48-65|
|8. Modeling of Sources of Variability and Biases||66-78|
|9. Conclusions and Recommendations||79-94|
|Statement Concerning Application of the Recommended Method||104-109|
|Appendix A: Adjustment of Intake Distributions Used in This Report||110-114|
|Appendix B: Derivation of Criteria for Interpretating Iron Intake in Women||115-119|
|Appendix C: Method for Estimating Confidence Intervals||120-126|
|Appendix D: Algorithm for Computing the Probability of Intake Inadequacy||127-128|
|Appendix E: Analysis of Error in the Estimation of Nutrient Intake Using Three Sample Data Sets||129-146|
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