PMID- 25634767
OWN - NLM
STAT- MEDLINE
DCOM- 20151127
LR  - 20191210
IS  - 1879-0739 (Electronic)
IS  - 0271-5317 (Linking)
VI  - 35
IP  - 3
DP  - 2015 Mar
TI  - Modest validity and fair reproducibility of dietary patterns derived by cluster 
      analysis.
PG  - 265-8
LID - S0271-5317(14)00291-7 [pii]
LID - 10.1016/j.nutres.2014.12.011 [doi]
AB  - Cluster analysis is widely used to analyze dietary patterns. We aimed to analyze 
      the validity and reproducibility of the dietary patterns defined by cluster 
      analysis derived from a food frequency questionnaire (FFQ). We hypothesized that 
      the dietary patterns derived by cluster analysis have fair to modest 
      reproducibility and validity. Dietary data were collected from 107 individuals 
      from population-based survey, by an FFQ at baseline (FFQ1) and after 1 year 
      (FFQ2), and by twelve 24-hour dietary recalls (24-HDR). Repeatability and 
      validity were measured by comparing clusters obtained by the FFQ1 and FFQ2 and by 
      the FFQ2 and 24-HDR (reference method), respectively. Cluster analysis identified 
      a "fruits & vegetables" and a "meat" pattern in each dietary data source. Cluster 
      membership was concordant for 66.7% of participants in FFQ1 and FFQ2 
      (reproducibility), and for 67.0% in FFQ2 and 24-HDR (validity). Spearman 
      correlation analysis showed reasonable reproducibility, especially in the "fruits 
      & vegetables" pattern, and lower validity also especially in the "fruits & 
      vegetables" pattern. kappa statistic revealed a fair validity and reproducibility of 
      clusters. Our findings indicate a reasonable reproducibility and fair to modest 
      validity of dietary patterns derived by cluster analysis.
CI  - Copyright (c) 2015 Elsevier Inc. All rights reserved.
FAU - Funtikova, Anna N
AU  - Funtikova AN
AD  - Cardiovascular Risk and Nutrition Research Group (CARIN-ULEC), Program of 
      Research in Epidemiology and Public Health, IMIM (Institut de Recerca Hospital 
      del Mar), Barcelona, Spain; CIBER Epidemiology and Public Health (CIBERESP), 
      Instituto de Salud Carlos III, Spain; Food and Nutrition PhD program, University 
      of Barcelona, Barcelona, Spain.
FAU - Benitez-Arciniega, Alejandra A
AU  - Benitez-Arciniega AA
AD  - Faculty of Medicine, Autonomous University of Mexico State, Toluca, Mexico.
FAU - Fito, Montserrat
AU  - Fito M
AD  - Cardiovascular Risk and Nutrition Research Group (CARIN-ULEC), Program of 
      Research in Epidemiology and Public Health, IMIM (Institut de Recerca Hospital 
      del Mar), Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition 
      (CIBEROBN), Instituto de Salud Carlos III Spain.
FAU - Schroder, Helmut
AU  - Schroder H
AD  - Cardiovascular Risk and Nutrition Research Group (CARIN-ULEC), Program of 
      Research in Epidemiology and Public Health, IMIM (Institut de Recerca Hospital 
      del Mar), Barcelona, Spain; CIBER Epidemiology and Public Health (CIBERESP), 
      Instituto de Salud Carlos III, Spain. Electronic address: hschroeder@imim.es.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Validation Study
DEP - 20150107
PL  - United States
TA  - Nutr Res
JT  - Nutrition research (New York, N.Y.)
JID - 8303331
SB  - IM
MH  - Cluster Analysis
MH  - Diet/*classification/statistics & numerical data
MH  - Diet Surveys/*methods/statistics & numerical data
MH  - Feeding Behavior/*classification
MH  - Female
MH  - Humans
MH  - Male
MH  - Mental Recall
MH  - Middle Aged
MH  - Reproducibility of Results
MH  - Surveys and Questionnaires
OTO - NOTNLM
OT  - A posteriori dietary patterns
OT  - Cluster analysis
OT  - Food frequency questionnaire
OT  - Repeatability
OT  - Reproducibility
OT  - Validation
EDAT- 2015/01/31 06:00
MHDA- 2015/12/15 06:00
CRDT- 2015/01/31 06:00
PHST- 2014/07/29 00:00 [received]
PHST- 2014/12/30 00:00 [revised]
PHST- 2014/12/30 00:00 [accepted]
PHST- 2015/01/31 06:00 [entrez]
PHST- 2015/01/31 06:00 [pubmed]
PHST- 2015/12/15 06:00 [medline]
AID - S0271-5317(14)00291-7 [pii]
AID - 10.1016/j.nutres.2014.12.011 [doi]
PST - ppublish
SO  - Nutr Res. 2015 Mar;35(3):265-8. doi: 10.1016/j.nutres.2014.12.011. Epub 2015 Jan 
      7.