Standard

Low 10-year reproducibility of glycaemic index and glycaemic load in a prospective cohort study. / Mullie, Patrick; Deforche, Benedicte; Mertens, Evelien; Charlier, R; Knaeps, Sara; Lefevre, J; Clarys, Peter.

In: British Journal of Nutrition, Vol. 120, No. 2, 28.07.2018, p. 227-230.

Research output: Contribution to journalArticleResearchpeer-review

Harvard

APA

Vancouver

Author

Mullie, Patrick ; Deforche, Benedicte ; Mertens, Evelien ; Charlier, R ; Knaeps, Sara ; Lefevre, J ; Clarys, Peter. / Low 10-year reproducibility of glycaemic index and glycaemic load in a prospective cohort study. In: British Journal of Nutrition. 2018 ; Vol. 120, No. 2. pp. 227-230.

BibTeX

@article{3760eb96607c45589b2a8b2afe3316fb,
title = "Low 10-year reproducibility of glycaemic index and glycaemic load in a prospective cohort study",
abstract = "When relating glycaemic index (GI) and glycaemic load (GL) to health outcomes, many prospective cohort studies assess the nutritional exposure only once in time, that is, at the start of the study, presuming a stability in nutritional consumption during the course of the study. The aim of this study is to investigate the reproducibility of GI and GL. This is a prospective cohort study in which 562 middle-aged Belgian adults noted all foods and drinks consumed during 3 d in 2002 and 2012. GI and GL were calculated after reference tables. The Pearson correlation coefficients between 2002 and 2012 were 0·27 for GI and 0·41 for GL. For GI, 33 {\%} of the participants remained in the same quintile between 2002 and 2012, whereas 31 {\%} moved to a non-adjacent quintile. For GL, this was 34 and 28 {\%}, respectively. The lowest and the highest quintiles of GI were the most stable, with 40 and 44 {\%} of the participants staying in the same quintile. This was only 22 {\%} for the fourth quintile. The same tendency was present for GL - that is, the most extreme quintiles were the most stable. This study shows 10-year correlation coefficients for GI and GL below 0·50. Multiple nutritional assessments and limiting the analysis to the extreme quintiles of GI and GL will limit a possible misclassification in the prospective cohort studies owing to the low reproducibility.",
keywords = "Glycaemic index, Glycaemic load, Nutritional assessments, Reproducibility",
author = "Patrick Mullie and Benedicte Deforche and Evelien Mertens and R Charlier and Sara Knaeps and J Lefevre and Peter Clarys",
year = "2018",
month = "7",
day = "28",
doi = "10.1017/S0007114518001459",
language = "English",
volume = "120",
pages = "227--230",
journal = "British Journal of Nutrition",
issn = "0007-1145",
publisher = "Cambridge University Press",
number = "2",

}

RIS

TY - JOUR

T1 - Low 10-year reproducibility of glycaemic index and glycaemic load in a prospective cohort study

AU - Mullie, Patrick

AU - Deforche, Benedicte

AU - Mertens, Evelien

AU - Charlier, R

AU - Knaeps, Sara

AU - Lefevre, J

AU - Clarys, Peter

PY - 2018/7/28

Y1 - 2018/7/28

N2 - When relating glycaemic index (GI) and glycaemic load (GL) to health outcomes, many prospective cohort studies assess the nutritional exposure only once in time, that is, at the start of the study, presuming a stability in nutritional consumption during the course of the study. The aim of this study is to investigate the reproducibility of GI and GL. This is a prospective cohort study in which 562 middle-aged Belgian adults noted all foods and drinks consumed during 3 d in 2002 and 2012. GI and GL were calculated after reference tables. The Pearson correlation coefficients between 2002 and 2012 were 0·27 for GI and 0·41 for GL. For GI, 33 % of the participants remained in the same quintile between 2002 and 2012, whereas 31 % moved to a non-adjacent quintile. For GL, this was 34 and 28 %, respectively. The lowest and the highest quintiles of GI were the most stable, with 40 and 44 % of the participants staying in the same quintile. This was only 22 % for the fourth quintile. The same tendency was present for GL - that is, the most extreme quintiles were the most stable. This study shows 10-year correlation coefficients for GI and GL below 0·50. Multiple nutritional assessments and limiting the analysis to the extreme quintiles of GI and GL will limit a possible misclassification in the prospective cohort studies owing to the low reproducibility.

AB - When relating glycaemic index (GI) and glycaemic load (GL) to health outcomes, many prospective cohort studies assess the nutritional exposure only once in time, that is, at the start of the study, presuming a stability in nutritional consumption during the course of the study. The aim of this study is to investigate the reproducibility of GI and GL. This is a prospective cohort study in which 562 middle-aged Belgian adults noted all foods and drinks consumed during 3 d in 2002 and 2012. GI and GL were calculated after reference tables. The Pearson correlation coefficients between 2002 and 2012 were 0·27 for GI and 0·41 for GL. For GI, 33 % of the participants remained in the same quintile between 2002 and 2012, whereas 31 % moved to a non-adjacent quintile. For GL, this was 34 and 28 %, respectively. The lowest and the highest quintiles of GI were the most stable, with 40 and 44 % of the participants staying in the same quintile. This was only 22 % for the fourth quintile. The same tendency was present for GL - that is, the most extreme quintiles were the most stable. This study shows 10-year correlation coefficients for GI and GL below 0·50. Multiple nutritional assessments and limiting the analysis to the extreme quintiles of GI and GL will limit a possible misclassification in the prospective cohort studies owing to the low reproducibility.

KW - Glycaemic index

KW - Glycaemic load

KW - Nutritional assessments

KW - Reproducibility

UR - http://www.scopus.com/inward/record.url?scp=85049614532&partnerID=8YFLogxK

U2 - 10.1017/S0007114518001459

DO - 10.1017/S0007114518001459

M3 - Article

VL - 120

SP - 227

EP - 230

JO - British Journal of Nutrition

JF - British Journal of Nutrition

SN - 0007-1145

IS - 2

ER -

ID: 39501548