Validation of an estimated food record

Abstract

Objective: To validate an estimated food record (EFR), using a weighed food record (WFR) as the reference method, for the determination of food consumption and nutrient intakes in a group of Costa Rican adults. Design: For the WFR, all foods consumed by subjects during seven consecutive days were weighed and recorded by nutrition students. Two EFRs (a 4-day and a 3-day record) were recorded by subjects with the use of home measures and photographs to estimate amounts. Setting: Costa Rica. Subjects: Sixty adults: 30 men and 30 women; 30 living in urban and 30 in rural areas. Results: The EFR gave statistically significant lower average intake estimates for energy and 12 of the 22 nutrients examined. The correlation coefficients ranged from 0.68 (polyunsaturated fats) to 0.87 (calcium). The percentage of subjects classified into the same quartile ranged from 45.0% (polyunsaturated fats) to 68.3% (vitamin B 12 ). For all nutrients except vitamin C, 0 or 1.7% were misclassified into extreme quartiles. For food group consumption, the EFR gave statistically significant lower estimates for six of the 17 groups and correlation coefficients ranged from 0.22 (fish) to 0.93 (beverages). Greater differences in estimates of mean energy and nutrient intakes were detected among subjects from rural areas, caused in part by a tendency to underestimate the amounts of rice and beans consumed. Conclusion: Validation of the EFR using a WFR as the reference method gave results that compare favourably with those reported by other authors, and support the use of the EFR for dietary surveys among Costa Rican adults.

Diets High in Fiber and Vegetable Protein Are Associated with Low Lumbar Bone Mineral Density in Young Athletes with Oligoamenorrhea

“…However, the food records we used in this study are well validated, 37–3940,41 , including in a study of adolescent girls with eating disorders as well as normal-weight adolescents. 44 Further, because more participants were OA compared to EA or NA, there is a higher likelihood of finding significant associations in the OA group than the other groups.…”

“…37–39 Description of portion sizes and preparation methods were recorded and data analyzed by the Metabolism & Nutrition Research core of the Clinical Research Center of our institution using Nutrient Data System for Research software version 2008 (NDS-R) developed by the Nutrition Coordinating Center (NCC), University of Minnesota, Minneapolis, MN. 40 In a comparison of various methods of dietary intake assessment, 3-day food records had a higher correlation to estimates of food consumption from the reference method of a 9-day food record than did food frequency questionnaires.…”

New pre-coded food record form validation

“…These results are sound when compared to those from other pre-coded record validity studies. Chinnock (2006) validated a food record for adults which contained 17 food groups by using as reference method a weighed food record for 7 days and thus obtaining correlations from 0.22 to 0.93 (mean=0.67) 19 . Moreover, the reproducibility in the record validated in the mentioned study was lower than that obtained in the present study, probably because it was a more complex record (it was divided into mealtimes and it included information and photos of portions) and because of the gold standard (weighed food record).…”

Comparison of diet consumption, body composition and lipoprotein lipid values of Kuwaiti fencing players with international norms

“…Recent studies suggest that diet records are more valid measures of nutrient intake than are food-frequency questionnaires [50,51]. Therefore, a three-day diet record was used to estimate mean daily dietary energy, macronutrients, micronutrients intakes and total energy (calories) requirements.…”