Open AccessAdjusting for energy intake in dietary pattern investigations using principal components analysis
Author(s) -
Kate Northstone,
Andy R Ness,
Pauline M Emmett,
Imogen Rogers
Publication year - 2007
Publication title -
european journal of clinical nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.024
H-Index - 157
eISSN - 1476-5640
pISSN - 0954-3007
DOI - 10.1038/sj.ejcn.1602789
Subject(s) - principal component analysis , nutrient , medicine , food frequency questionnaire , energy (signal processing) , statistics , portion size , sample size determination , demography , environmental health , mathematics , food science , biology , ecology , sociology
The effect of energy adjustment on variables entered into principal component analysis (PCA) to derive dietary patterns has received little attention.