Relative validity of a glycemic index extended food-frequency questionnaire.
Cohort study
FFQ
Glycemic index
Nutritional assessment
Journal
Nutrition, metabolism, and cardiovascular diseases : NMCD
ISSN: 1590-3729
Titre abrégé: Nutr Metab Cardiovasc Dis
Pays: Netherlands
ID NLM: 9111474
Informations de publication
Date de publication:
10 2022
10 2022
Historique:
received:
08
04
2022
revised:
15
06
2022
accepted:
11
07
2022
pubmed:
17
8
2022
medline:
5
10
2022
entrez:
16
8
2022
Statut:
ppublish
Résumé
The dietary glycemic index (GI) and glycemic load (GL) are increasingly recognized as important for the prevention and management of diabetes mellitus. To extend the portfolio of assessment methods for large-scale epidemiological studies, we propose a GI-specific addition to an already established FFQ. The German version of the EPIC-FFQ was extended by GI-specific questions for major carbohydrate sources varying notably in GI (breakfast cereals, bread, pasta, rice, potato etc.). We performed relative validation analyses comparing the GI-extended FFQ to three to four 3-day weighted dietary records (3-d WDR) in 100 middle-aged individuals with diabetes mellitus participating in the German Diabetes Study (GDS). Level of agreement between the two methods was assessed by correlation and cross-classification analyses as well as Bland-Altman-Plots, conducted separately for women and men. Spearman correlation analysis for female participants suggested good agreement between the GI-extended FFQ and 3-d WDRs for energy adjusted dietary GL (r = 0.52, p = 0.0004). For both women and men, agreement with the estimations of dietary GI, GL (for men) and carbohydrates from low and higher-GI food sources from the GI-extended FFQ was acceptable (r: 0.28-0.45). Classification of the dietary GI and GL in the opposite quartile was <10% comparing the GI-extended FFQ and 3-d WDR. Bland-Altman plots suggested a tendency for an overestimation of the dietary GI from the GI-extended FFQ in the lower GI-ranges, particularly for men. Compared to the 3-d WDR, the GI-extended FFQ showed a moderate to good relative validity for parameters of carbohydrate quality.
Sections du résumé
BACKGROUND AND AIMS
The dietary glycemic index (GI) and glycemic load (GL) are increasingly recognized as important for the prevention and management of diabetes mellitus. To extend the portfolio of assessment methods for large-scale epidemiological studies, we propose a GI-specific addition to an already established FFQ.
METHODS AND RESULTS
The German version of the EPIC-FFQ was extended by GI-specific questions for major carbohydrate sources varying notably in GI (breakfast cereals, bread, pasta, rice, potato etc.). We performed relative validation analyses comparing the GI-extended FFQ to three to four 3-day weighted dietary records (3-d WDR) in 100 middle-aged individuals with diabetes mellitus participating in the German Diabetes Study (GDS). Level of agreement between the two methods was assessed by correlation and cross-classification analyses as well as Bland-Altman-Plots, conducted separately for women and men. Spearman correlation analysis for female participants suggested good agreement between the GI-extended FFQ and 3-d WDRs for energy adjusted dietary GL (r = 0.52, p = 0.0004). For both women and men, agreement with the estimations of dietary GI, GL (for men) and carbohydrates from low and higher-GI food sources from the GI-extended FFQ was acceptable (r: 0.28-0.45). Classification of the dietary GI and GL in the opposite quartile was <10% comparing the GI-extended FFQ and 3-d WDR. Bland-Altman plots suggested a tendency for an overestimation of the dietary GI from the GI-extended FFQ in the lower GI-ranges, particularly for men.
CONCLUSION
Compared to the 3-d WDR, the GI-extended FFQ showed a moderate to good relative validity for parameters of carbohydrate quality.
Identifiants
pubmed: 35973887
pii: S0939-4753(22)00296-4
doi: 10.1016/j.numecd.2022.07.007
pii:
doi:
Substances chimiques
Carbohydrates
0
Dietary Carbohydrates
0
Banques de données
ClinicalTrials.gov
['NCT01055093']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2310-2320Investigateurs
None M Roden
H Al-Hasani
(H)
B Belgardt
(B)
V Burkart
(V)
A E Buyken
(AE)
G Geerling
(G)
C Herder
(C)
A Icks
(A)
K Jandeleit-Dahm
(K)
S Kahl
(S)
J Kotzka
(J)
O Kuß
(O)
E Lammert
(E)
W Rathmann
(W)
V Schrauwen-Hinderling
(V)
J Szendroedi
(J)
S Trenkamp
(S)
D Ziegler
(D)
Informations de copyright
Copyright © 2022. Published by Elsevier B.V.
Déclaration de conflit d'intérêts
Declaration of competing interest AEB is a member of the International Carbohydrate Consortium and of the ILSI Europe Carbohydrate Task Force. All other authors have no conflict of interest.