Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

In-Utero Exposure to Cigarette Smoking on Child Long-Term Risk of Obesity: Concordance of Self-Report, Maternal and Cord Blood Biomarkers

Wenpin Hou
* ,
Mingyu Zhang
ORCID logo ,
Yuelong Ji
,
Xiumei Hong
,
Guoying Wang
,
Liming Liang
,
Hongkai Ji
,
Suchi Saria
,
Xiaobin Wang
* ORCID logo
Version 1 : Received: 15 October 2021 / Approved: 20 October 2021 / Online: 20 October 2021 (22:44:29 CEST)

How to cite: Hou, W.; Zhang, M.; Ji, Y.; Hong, X.; Wang, G.; Liang, L.; Ji, H.; Saria, S.; Wang, X. In-Utero Exposure to Cigarette Smoking on Child Long-Term Risk of Obesity: Concordance of Self-Report, Maternal and Cord Blood Biomarkers. Preprints 2021, 2021100296. https://doi.org/10.20944/preprints202110.0296.v1 Hou, W.; Zhang, M.; Ji, Y.; Hong, X.; Wang, G.; Liang, L.; Ji, H.; Saria, S.; Wang, X. In-Utero Exposure to Cigarette Smoking on Child Long-Term Risk of Obesity: Concordance of Self-Report, Maternal and Cord Blood Biomarkers. Preprints 2021, 2021100296. https://doi.org/10.20944/preprints202110.0296.v1

Abstract

Most studies on the association of in utero exposure to cigarette smoking and childhood overweight or obesity (OWO) were based on maternal self-reported smoking data and few were based on objective biomarkers. In this study, we evaluated the associations between self-reported and biomarkers of in utero exposure to cigarette smoking with risk of childhood OWO. We analyzed data from 2351 mother-child pairs in the Boston Birth Cohort, a US low-income minority cohort that enrolled children at birth and followed prospectively up to age 18 years. In utero smoking exposure was measured by maternal self-report and by maternal and cord plasma cotinine and hydroxycotinine metabolites. We assessed the individual and joint associations of each smoking exposure measure and maternal OWO with childhood OWO using multinomial logistic regressions. We used nested logistic regressions to investigate the childhood OWO prediction performance when adding maternal and cord plasma biomarkers as input covariates on top of self-reported data. Our results demonstrated that in utero cigarette smoking exposure defined by self-report and by maternal or cord metabolites were consistently associated with increased risk of long-term child OWO. Adding maternal and cord plasma biomarker information to self-reported data improved the prediction accuracy of long-term child OWO risk.

Keywords

Maternal smoking; obesity; biomarkers; cotinine; hydroxycotinine; plasma; cord; in utero expo-sure

Subject

Medicine and Pharmacology, Pharmacology and Toxicology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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