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Attrition in the European Child Cohort IDEFICS/I.Family: Exploring Associations Between Attrition and Body Mass Index

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Attrition in the European Child Cohort IDEFICS/I.Family : Exploring Associations Between Attrition and Body Mass Index. / IDEFICS and I.Family Consortia.

In: Frontiers in Pediatrics, Vol. 6, 212, 15.08.2018, p. 1-13.

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IDEFICS and I.Family Consortia. / Attrition in the European Child Cohort IDEFICS/I.Family : Exploring Associations Between Attrition and Body Mass Index. In: Frontiers in Pediatrics. 2018 ; Vol. 6. pp. 1-13.

Bibtex

@article{0b31326e678c42dab330f134bbaea853,
title = "Attrition in the European Child Cohort IDEFICS/I.Family: Exploring Associations Between Attrition and Body Mass Index",
abstract = "Attrition may lead to bias in epidemiological cohorts, since participants who are healthier and have a higher social position are less likely to drop out. We investigated possible selection effects regarding key exposures and outcomes in the IDEFICS/I.Family study, a large European cohort on the etiology of overweight, obesity and related disorders during childhood and adulthood. We applied multilevel logistic regression to investigate associations of attrition with sociodemographic variables, weight status, and study compliance and assessed attrition across time regarding children's weight status and variations of attrition across participating countries.We investigated selection effects with regard to social position, adherence to key messages concerning a healthy lifestyle, and children's weight status. Attrition was associated with a higher weight status of children, lower children's study compliance, older age, lower parental education, and parent's migration background, consistent across time and participating countries. Although overweight (odds ratio 1.17, 99% confidence interval 1.05-1.29) or obese children (odds ratio 1.18, 99% confidence interval 1.03-1.36) were more prone to drop-out, attrition only seemed to slightly distort the distribution of children's BMI at the upper tail. Restricting the sample to subgroups with different attrition characteristics only marginally affected exposure-outcome associations. Our results suggest that IDEFICS/I.Family provides valid estimates of relations between socio-economic position, health-related behaviors, and weight status. {\textcopyright} 2018 Langeheine, Pohlabeln, Lauria, Veidebaum, Tornaritis, Molnar, Eiben, de Henauw, Moreno, Williams, Ahrens and Rach.",
keywords = "cohort attrition, child health, BMI, selection effects, cross country differences",
author = "Malte Langeheine and H Pohlablen and Fabio Lauria and Toomas Veidebaum and Michael Tornartis and Denes Molnar and Gabriele Eiben and {De Henauw}, Stefaan and Moreno, {Luis A.} and Williams, {Garrath David} and Wolfgang Ahrens and Stefan Rach and {IDEFICS and I.Family Consortia}",
year = "2018",
month = aug
day = "15",
doi = "10.3389/fped.2018.00212.",
language = "English",
volume = "6",
pages = "1--13",
journal = "Frontiers in Pediatrics",
issn = "2296-2360",
publisher = "Frontiers Media S.A.",

}

RIS

TY - JOUR

T1 - Attrition in the European Child Cohort IDEFICS/I.Family

T2 - Exploring Associations Between Attrition and Body Mass Index

AU - Langeheine, Malte

AU - Pohlablen, H

AU - Lauria, Fabio

AU - Veidebaum, Toomas

AU - Tornartis, Michael

AU - Molnar, Denes

AU - Eiben, Gabriele

AU - De Henauw, Stefaan

AU - Moreno, Luis A.

AU - Williams, Garrath David

AU - Ahrens, Wolfgang

AU - Rach, Stefan

AU - IDEFICS and I.Family Consortia

PY - 2018/8/15

Y1 - 2018/8/15

N2 - Attrition may lead to bias in epidemiological cohorts, since participants who are healthier and have a higher social position are less likely to drop out. We investigated possible selection effects regarding key exposures and outcomes in the IDEFICS/I.Family study, a large European cohort on the etiology of overweight, obesity and related disorders during childhood and adulthood. We applied multilevel logistic regression to investigate associations of attrition with sociodemographic variables, weight status, and study compliance and assessed attrition across time regarding children's weight status and variations of attrition across participating countries.We investigated selection effects with regard to social position, adherence to key messages concerning a healthy lifestyle, and children's weight status. Attrition was associated with a higher weight status of children, lower children's study compliance, older age, lower parental education, and parent's migration background, consistent across time and participating countries. Although overweight (odds ratio 1.17, 99% confidence interval 1.05-1.29) or obese children (odds ratio 1.18, 99% confidence interval 1.03-1.36) were more prone to drop-out, attrition only seemed to slightly distort the distribution of children's BMI at the upper tail. Restricting the sample to subgroups with different attrition characteristics only marginally affected exposure-outcome associations. Our results suggest that IDEFICS/I.Family provides valid estimates of relations between socio-economic position, health-related behaviors, and weight status. © 2018 Langeheine, Pohlabeln, Lauria, Veidebaum, Tornaritis, Molnar, Eiben, de Henauw, Moreno, Williams, Ahrens and Rach.

AB - Attrition may lead to bias in epidemiological cohorts, since participants who are healthier and have a higher social position are less likely to drop out. We investigated possible selection effects regarding key exposures and outcomes in the IDEFICS/I.Family study, a large European cohort on the etiology of overweight, obesity and related disorders during childhood and adulthood. We applied multilevel logistic regression to investigate associations of attrition with sociodemographic variables, weight status, and study compliance and assessed attrition across time regarding children's weight status and variations of attrition across participating countries.We investigated selection effects with regard to social position, adherence to key messages concerning a healthy lifestyle, and children's weight status. Attrition was associated with a higher weight status of children, lower children's study compliance, older age, lower parental education, and parent's migration background, consistent across time and participating countries. Although overweight (odds ratio 1.17, 99% confidence interval 1.05-1.29) or obese children (odds ratio 1.18, 99% confidence interval 1.03-1.36) were more prone to drop-out, attrition only seemed to slightly distort the distribution of children's BMI at the upper tail. Restricting the sample to subgroups with different attrition characteristics only marginally affected exposure-outcome associations. Our results suggest that IDEFICS/I.Family provides valid estimates of relations between socio-economic position, health-related behaviors, and weight status. © 2018 Langeheine, Pohlabeln, Lauria, Veidebaum, Tornaritis, Molnar, Eiben, de Henauw, Moreno, Williams, Ahrens and Rach.

KW - cohort attrition

KW - child health

KW - BMI

KW - selection effects

KW - cross country differences

U2 - 10.3389/fped.2018.00212.

DO - 10.3389/fped.2018.00212.

M3 - Journal article

VL - 6

SP - 1

EP - 13

JO - Frontiers in Pediatrics

JF - Frontiers in Pediatrics

SN - 2296-2360

M1 - 212

ER -