Document Detail

Validating a nutrient profile model.
MedLine Citation:
PMID:  17605841     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To assess the validity of nutrient profiling Model WXYfm - developed for the purpose of regulating the promotion of 'less healthy' foods to children. The model ranks foods according to their healthiness and categorises foods into 'healthier' and 'less healthy' foods. DESIGN: Convergent and discriminant validity was tested by comparing the way Model WXYfm categorises foods with the way the UK's national food guide - the Balance of Good Health (BGH) - categorises foods. Construct validity was assessed by testing a hypothesis relating the constructs of 'healthiness' of foods (as measured by Model WXYfm) and the 'healthiness' of diets (measured using the Diet Quality Index) and assessing whether this hypothesis was confirmed or refuted by using data on the dietary patterns of subjects (n = 1117) of the National Diet and Nutrition Survey of adults carried out in Great Britain in 2000-01. RESULTS: Model WXYfm showed good convergent and discriminant validity: the level of agreement between the way the model categorises foods and the way the BGH categorises foods was good (kappa = 0.69). Model WXYfm also showed good construct validity: the energy intake from 'less healthy' foods amongst subjects with the least healthy diets was nearly twice the energy intake from 'less healthy' foods amongst the subjects with the healthiest diets. CONCLUSIONS: Model WXYfm demonstrated good validity in categorising foods in a way that is related to the healthiness of diets both recommended and achieved. The methods for assessing the validity of a nutrient profile model used in this paper have not, to our knowledge, been used before.
Carukshi Arambepola; Peter Scarborough; Mike Rayner
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies     Date:  2007-07-03
Journal Detail:
Title:  Public health nutrition     Volume:  11     ISSN:  1368-9800     ISO Abbreviation:  Public Health Nutr     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-12     Completed Date:  2008-06-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  371-8     Citation Subset:  IM    
British Heart Foundation Health Promotion Research Group, Department of Public Health, University of Oxford, Old Road Campus, Headington, Oxford OX3 7LF, UK.
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MeSH Terms
Discriminant Analysis
Food / classification*
Food Analysis
Great Britain
Health Food / analysis,  classification*
Health Promotion / methods,  standards*
Models, Theoretical*
Nutrition Policy
Nutritive Value
Reproducibility of Results
Sensitivity and Specificity
Grant Support
//British Heart Foundation

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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