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The positive association of infant weight gain with adulthood body mass index has strengthened over time in the Fels Longitudinal Study

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posted on 16.01.2018 by Kimberly Lucas, Philip James, Audrey C. Choh, Miryoung Lee, Stefan A. Czerwinski, Ellen W. Demerath, Will Johnson
Background Infant weight gain is positively related to adulthood body mass index (BMI), but it is unknown whether or not this association is stronger for individuals born during (compared to before) the obesity epidemic. Objectives To examine how the infant weight gain–adulthood BMI association might have changed across successive birth year cohorts spanning most of the 20th century. Methods The sample comprised 346 participants in the Fels Longitudinal Study. Confounder-adjusted regression models were used to test the associations of conditional weight-for-length Z-score (WLZ), capturing weight change between ages 0-2 years, with young adulthood BMI and blood pressure, including cohort (1933-1949 (N=137), 1950-1969 (N=108), 1970-1997 (N=101)) as an effect modifier. Results Conditional WLZ was positively related to adulthood BMI, but there was significant effect modification by birth year cohort such that the association was over two times stronger in the 1970-1997 cohort (β 2.31; 95% confidence interval 1.59, 3.03) compared to the 1933-1949 (0.98; 0.31, 1.65) and 1950-1969 (0.87; 0.21, 1.54) cohorts. A similar pattern was found for systolic blood pressure. Conclusions The infant weight gain–adulthood BMI association was over two times stronger among a cohort born during the obesity epidemic era compared to cohorts born earlier in the 20th century.

History

School

  • Sport, Exercise and Health Sciences

Published in

Pediatric Obesity

Citation

LUCAS, K., 2018. The positive association of infant weight gain with adulthood body mass index has strengthened over time in the Fels Longitudinal Study. Pediatric Obesity, 13 (8), pp.476-484.

Publisher

© World Obesity Federation. Published by Wiley

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

08/01/2018

Publication date

2018-02-28

Notes

This is the peer reviewed version of the following article: LUCAS, K., 2018. The positive association of infant weight gain with adulthood body mass index has strengthened over time in the Fels Longitudinal Study. Pediatric Obesity, 13 (8), pp.476-484., which has been published in final form at https://doi.org/10.1111/ijpo.12271. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

ISSN

2047-6310

Language

en

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