期刊
INTERNATIONAL JOURNAL OF FOOD SCIENCES AND NUTRITION
卷 62, 期 6, 页码 617-627出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/09637486.2011.561783
关键词
Multivariate analysis; dietary patterns; validity; food frequency questionnaire; a priori; a posteriori
Aim: To evaluate the validity of dietary patterns derived using both a priori and a posteriori methods. aEuro integral Method: Five hundred individuals (46 +/-+/- 16 years, 40% males) completed a valid 76-food item food frequency questionnaire and a 3-day dairy. The MedDietScore was used to a priori assess the adherence to the Mediterranean diet, while principal components and cluster analysis were used as the a posteriori methods. aEuro integral Results: Both the a priori and a posteriori methods used led to relatively low-validity dietary patterns. However, the level of validity reached significance in many cases and, also, varied by the type of validation method used (i.e. Bland and Altman, non-parametric criteria, etc.). aEuro integral Conclusion: The aforementioned findings may suggest that the use of both a priori and a posteriori pattern analysis in nutrition surveys should be made with conscious thought and further research is needed in order to establish robust methodologies to assess the validity of patterns.
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