Document Detail

Misreporting of dietary energy, protein, potassium and sodium in relation to body mass index in young Japanese women.
MedLine Citation:
PMID:  17299459     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Although under-reporting of dietary intake is more common in persons with a high body mass index (BMI), it is not well known whether or not misreporting is selective for different foods (and hence energy and nutrients), particularly in non-Western populations. We examined misreporting of dietary intake against biomarkers and its relation with BMI in young Japanese women. DESIGN: Cross-sectional study. SUBJECTS: A total of 353 female Japanese dietetic students aged 18-22 years (mean BMI: 21.4 kg/m(2), mean fat intake: 29.8% of energy). METHODS: Misreporting of dietary energy, protein, potassium and sodium (assessed by a self-administered diet history questionnaire) was examined against respective biomarkers (estimated energy expenditure and 24-h urinary excretion). Reporting accuracy was calculated as the ratio of reported intake to that estimated from corresponding biomarkers (complete accuracy: 1.00). RESULTS: Mean reporting accuracy of absolute intake (amount per day) varied considerably (0.86-1.14). Reporting accuracy of absolute intake decreased with increasing BMI (P for trend <0.001). However, no association was observed between reporting accuracy of energy-adjusted values and BMI (P for trend >0.15), indicating that BMI-dependent misreporting was canceled by energy adjustment. This was owing to positive correlation between the reporting accuracy of energy intake and that of absolute intake of the three nutrients (Pearson correlation coefficient: 0.49-0.67, P<0.0001). CONCLUSIONS: Although differential misreporting of absolute intake was associated with BMI, differential misreporting of energy-adjusted value was not. These findings support the use of energy-adjusted values in the investigation of diet-disease relationships among lean populations with a low-fat intake.
K Murakami; S Sasaki; Y Takahashi; K Uenishi; M Yamasaki; H Hayabuchi; T Goda; J Oka; K Baba; K Ohki; T Kohri; R Watanabe; Y Sugiyama
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Publication Detail:
Type:  Journal Article     Date:  2007-02-14
Journal Detail:
Title:  European journal of clinical nutrition     Volume:  62     ISSN:  0954-3007     ISO Abbreviation:  Eur J Clin Nutr     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-09     Completed Date:  2008-03-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804070     Medline TA:  Eur J Clin Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  111-8     Citation Subset:  IM    
Nutritional Epidemiology Program, National Institute of Health and Nutrition, Tokyo, Japan.
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MeSH Terms
Biological Markers / urine
Body Mass Index*
Cross-Sectional Studies
Dietary Proteins / administration & dosage*
Energy Intake*
Energy Metabolism / physiology
Potassium, Dietary / administration & dosage*
Self Disclosure*
Sensitivity and Specificity
Sodium / administration & dosage*
Reg. No./Substance:
0/Biological Markers; 0/Dietary Proteins; 0/Potassium, Dietary; 7440-23-5/Sodium

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