Journal
EUROPEAN JOURNAL OF CLINICAL NUTRITION
Volume 64, Issue 1, Pages 99-104Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ejcn.2009.114
Keywords
food frequency questionnaire; principal component analysis
Categories
Funding
- Medical Research Council
- University of Southampton
- Dunhill Medical Trust
- Danone Institute International
- MRC [MC_U147585827, G0400491] Funding Source: UKRI
- Medical Research Council [G0400491, MC_U147585824, MC_UP_A620_1014, U1475000001, MC_U147585827, U1475000004] Funding Source: researchfish
- National Institute for Health Research [NF-SI-0508-10082] Funding Source: researchfish
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Objective: To develop a short food frequency questionnaire (FFQ) that can be used among young women in Southampton to assess compliance with a prudent dietary pattern characterized by high consumption of wholemeal bread, fruit and vegetables, and low consumption of sugar, white bread, and red and processed meat. Methods: Diet was assessed using a 100-item interviewer-administered FFQ in 6129 non-pregnant women aged 20-34 years. In total, 94 of these women were re-interviewed 2 years later using the same FFQ. Subsequently, diet was assessed in 378 women attending SureStart Children's Centres in the Nutrition and Well-being Study (NWS) using a 20-item FFQ. The 20 foods included were those that characterized the prudent dietary pattern. Results: The 20-item prudent diet score was highly correlated with the full 100-item score (r = 0.94) in the Southampton Women's Survey (SWS). Both scores were correlated with red blood cell folate (r = 0.28 for the 100-item score and r = 0.25 for the 20-item score). Among the women re-interviewed after 2 years, the change in prudent diet score was correlated with change in red cell folate for both the 20-item (r(S) = 0.31) and 100-item scores (r(S) = 0.32). In the NWS a strong association between the 20-item prudent diet score and educational attainment (r = 0.41) was observed, similar to that seen in the SWS (r = 0.47). Conclusions: The prudent diet pattern describes a robust axis of variation in diet. A 20-item FFQ based on the foods that characterize the prudent diet pattern has clear advantages in terms of time and resources, and is a helpful tool to characterize the diets of young women in Southampton. European Journal of Clinical Nutrition (2010) 64, 99-104; doi:10.1038/ejcn.2009.114; published online 16 September 2009
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