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    Comparison of 3 methods for identifying dietary patterns associated with risk of disease

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    Authors
    DiBello, Julia R.
    Kraft, Peter
    McGarvey, Stephen T.
    Goldberg, Robert J.
    Campos, Hannia
    Baylin, Ana
    UMass Chan Affiliations
    Department of Medicine, Division of Cardiovascular Medicine
    Document Type
    Journal Article
    Publication Date
    2008-10-24
    Keywords
    Confidence Intervals
    Costa Rica
    Diet Surveys
    Female
    Food Habits
    Humans
    Incidence
    Male
    Middle Aged
    Myocardial Infarction
    Odds Ratio
    Population Surveillance
    Retrospective Studies
    Risk Factors
    Bioinformatics
    Biostatistics
    Epidemiology
    Health Services Research
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    Link to Full Text
    http://dx.doi.org/10.1093/aje/kwn274
    Abstract
    Reduced rank regression and partial least-squares regression (PLS) are proposed alternatives to principal component analysis (PCA). Using all 3 methods, the authors derived dietary patterns in Costa Rican data collected on 3,574 cases and controls in 1994-2004 and related the resulting patterns to risk of first incident myocardial infarction. Four dietary patterns associated with myocardial infarction were identified. Factor 1, characterized by high intakes of lean chicken, vegetables, fruit, and polyunsaturated oil, was generated by all 3 dietary pattern methods and was associated with a significantly decreased adjusted risk of myocardial infarction (28%-46%, depending on the method used). PCA and PLS also each yielded a pattern associated with a significantly decreased risk of myocardial infarction (31% and 23%, respectively); this pattern was characterized by moderate intake of alcohol and polyunsaturated oil and low intake of high-fat dairy products. The fourth factor derived from PCA was significantly associated with a 38% increased risk of myocardial infarction and was characterized by high intakes of coffee and palm oil. Contrary to previous studies, the authors found PCA and PLS to produce more patterns associated with cardiovascular disease than reduced rank regression. The most effective method for deriving dietary patterns related to disease may vary depending on the study goals.
    Source
    Am J Epidemiol. 2008 Dec 15;168(12):1433-43. Epub 2008 Oct 22. Link to article on publisher's site
    DOI
    10.1093/aje/kwn274
    Permanent Link to this Item
    http://hdl.handle.net/20.500.14038/47203
    PubMed ID
    18945692
    Related Resources
    Link to Article in PubMed
    ae974a485f413a2113503eed53cd6c53
    10.1093/aje/kwn274
    Scopus Count
    Collections
    Population and Quantitative Health Sciences Publications

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