Nutrient adequacy assessment using food consumption surveys
| Autor principal: | |
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| Autor Corporativo: | |
| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
Washington, D.C. :
National Academy Press
1986.
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| Edición: | 1st ed |
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009622261606719 |
Tabla de Contenidos:
- Nutrient Adequacy
- Copyright
- Preface
- Contents
- 1 Executive Summary
- MAJOR CONCLUSIONS
- MAJOR RECOMENDATIONS
- 2 Introduction
- 3 Nutrient Requirements as a Basis for Dietary Evaluation
- VARIABILITY OF NUTRIENT REQUIREMENTS
- LEVELS OF REQUIREMENT
- FIXED CUTOFF POINTS
- 4 The Use of Short-Term Dietary Intake Data to Estimate Usual Dietary Intake
- RELATIONSHIP OF DAILY DIETARY INTAKE DATA TO USUAL INTAKE
- PROCEDURE FOR ADJUSTING INTAKE DATA
- 5 The Probability Approach
- REQUIREMENT INFORMATION NEEDED FOR THE PROBABILITY APPROACH
- EFFECT OF REQUIREMENT DISTRIBUTION ON ESTIMATES OF THE PREVALENCE OF INTAKE ADEQUACY
- Influence of Mean and Standard Deviation of Requirement
- Influence of the Shape of Requirement Distribution
- Impact of the Mode in Which Requirements Are Expressed
- Impact of Criteria for Requirement Estimate
- Comparison with Fixed Cutoff Approach
- SUMMARY
- 6 Assessing Excessive Intake and Nutrient Energy Ratios
- FAT INTAKE
- NONNUTRIENTS
- Assessment of the Prevalence of Excessive Intake
- ENERGY FROM PROTEIN, FAT, AND CARBOHYDRATE
- USE OF THE PROBABILITY APPROACH TO ASSESS ENERGY INTAKE
- 7 Errors in Nutrient Intake Measurement
- SAMPLING VARIATION
- Random Error
- Systematic Bias
- ERRORS IN ESTIMATING USUAL NUTRIENT INTAKE
- Errors in Reporting Usual Food Intake
- Day-to-Day Variation in Intake
- Variability in Reporting and Recording Food Intake
- Variability Due to Coding and Analysis of the Nutrient Content of Foods
- Sources of Technical Errors in Food Composition
- Nutrient Data with Probable Bias
- Vitamin A
- Carotenoids
- Vitamin B12
- Vitamin C
- Folacin
- IMPACT OF SYSTEMATIC BIAS
- 8 Modeling of Sources of Variability and Biases
- VARIABILITY DUE TO SAMPLING OF RESPONDENTS
- RANDOM VARIABILITY IN FOODS CONSUMED
- VARIABILITY IN FOOD COMPOSITION DATA.
- EFFECT OF RANDOM STATISTICAL ERROR ON ESTIMATION OF PREVALENCE
- IMPACT OF RANDOM UNDER-AND OVERREPORTING
- 9 Conclusions and Recommendations
- ANALYSIS OF DIETARY ADEQUACY
- STUDY DESIGN
- SENSITIVITY ANALYSIS
- IMPROVEMENT OF THE FOOD COMPOSITION DATA BASE
- PREREQUISITES AND LIMITATIONS OF THE PROPOSED APPROACH
- Acceptable Precision of the Estimates
- Estimation of Usual Food Intake
- Computation of Nutrient Intake
- Definition of Nutrient Requirements
- CONCLUSIONS
- References
- Statement Concerning Application of the Recommended Method
- NUTRIENT REQUIREMENT INFORMATION
- ESTIMATES OF NUTRIENT INTAKE
- CONCLUSION
- Appendix A Adjustment of Intake Distributions Used in This Report
- REFERENCES
- Appendix B Derivation of Criteria for Interpreting Iron Intake in Women
- REFERENCES
- Appendix C Method of Estimating Confidence Intervals
- DESCRIPTION OF METHOD
- ESTIMATING THE DISTRIBUTION OF ACTUAL INTAKES F(X)
- The Parametric Method
- The Nonparametric Approach
- Assumptions of the 95% Confidence Interval
- REFERENCES
- Appendix D Algorithm for Computing the Probability of Intake Inadequacy
- REFERENCE
- Appendix E Analysis of Error in the Estimation of Nutrient Intake Using Three Sample Data Sets
- VARIABILITY OF FOOD COMPOSITION
- Effect of Increasing the Number of Foods in the Diet
- RANDOM ERROR IN THE MEASUREMENT OF FOOD INTAKE
- CONCLUSIONS
- REFERENCES.
