Document Detail

Validity of a new food frequency questionnaire for pregnant women in the Norwegian Mother and Child Cohort Study (MoBa).
MedLine Citation:
PMID:  18171405     Owner:  NLM     Status:  MEDLINE    
The aim of the present study was to examine the relative validity of foods and nutrients calculated by a new food frequency questionnaire (FFQ) in the Norwegian Mother and Child Cohort Study (MoBa). Reference measures were a 4-day weighed food diary (FD), a motion sensor for measuring total energy expenditure, one 24-h urine collection for analysis of nitrogen and iodine excretion, and a venous blood specimen for analysis of plasma 25-hydroxy-vitamin D and serum folate. A total of 119 women participated in the validation study, and 112 completed the motion sensor registration. Overall, the level of agreement between the FFQ and the FD was satisfactory, and significant correlations were found for all major food groups and for all nutrients except vitamin E. The average correlation coefficient between the FFQ and the FD for daily intake was 0.48 for foods and 0.36 for nutrients, and on average, 68% of the participants were classified into the same or adjacent quintiles by the two methods. Estimated total energy expenditure indicated that under-reporting of energy intake was more extensive with the FD than with the FFQ. The biological markers confirmed that the FFQ was able to distinguish between high and low intakes of nutrients, as measured by vitamin D, folate, protein and iodine. This validation study indicates that the MoBa FFQ produces reasonable valid intake estimates and is a valid tool to rank pregnant women according to low and high intakes of energy, nutrients and foods.
Anne Lise Brantsaeter; Margaretha Haugen; Jan Alexander; Helle Margrete Meltzer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  Maternal & child nutrition     Volume:  4     ISSN:  1740-8695     ISO Abbreviation:  Matern Child Nutr     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-03     Completed Date:  2008-03-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101201025     Medline TA:  Matern Child Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  28-43     Citation Subset:  IM    
Division of Environmental Medicine, Department of Food Safety and Nutrition, Norwegian Institute of Public Health, Oslo, Norway.
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MeSH Terms
Biological Markers / urine
Cohort Studies
Diet* / psychology,  statistics & numerical data,  trends
Diet Records
Energy Metabolism / physiology
Maternal Nutritional Physiological Phenomena / physiology*
Nutrition Assessment*
Prenatal Nutritional Physiological Phenomena
Questionnaires / standards*
Reproducibility of Results
Self Disclosure
Sensitivity and Specificity
Reg. No./Substance:
0/Biological Markers

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

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