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Am J Clin Nutr. 2008 May;87(5):1356-64.

How pre- and postnatal risk factors modify the effect of rapid weight gain in infancy and early childhood on subsequent fat mass development: results from the Multicenter Allergy Study 90.

Author information

1
Research Institute of Child Nutrition, Rheinische Friedrich-Wilhelms-Universit├Ąt Bonn, Dortmund, Germany. karaolis@fke-do.de

Abstract

BACKGROUND:

It is unclear which exposures may cause or modify the adverse effect of rapid weight gain on fat mass development in term children whose birth weight is appropriate-for-gestational age (AGA).

OBJECTIVE:

To determine which intrauterine or postnatal exposures increase the risk of or modify the effect of rapid weight gain on body fat percentage (BF%) and body mass index (BMI) trajectories between 2 and 6 y of age.

DESIGN:

Term AGA singletons (n = 370) from the German Multicenter Allergy Study (MAS-90), a longitudinal birth cohort study, with repeated anthropometric measurements until 6 y, and data on breastfeeding status, exposure to smoking during pregnancy, and maternal anthropometric and socioeconomic characteristics were included in this analysis.

RESULTS:

A shorter gestation [multivariate-adjusted odds ratio (OR): 5.12; 95% CI: 2.22, 11.82; P = 0.0001], being firstborn (OR: 2.01; 95% CI: 1.10, 3.69; P = 0.02), and having been bottle-fed (OR: 3.02; 95% CI: 1.68, 5.43; P = 0.0002) all significantly increased a child's risk of gaining weight rapidly, whereas a larger BMI at birth was protective (OR: 0.54; 95% CI: 0.38, 0.77; P = 0.0006). Multilevel model analyses showed that rapid growers exposed to tobacco in utero subsequently gained more BF% between 2 and 6 y than did rapid growers who had not been exposed (beta +/- SE: 0.78 +/- 0.28%/y; P = 0.005). Similarly, change in BF% was greater in rapid growers with an overweight mother than in those with a normal-weight mother (1.01 +/- 0.30%/y; P = 0.0007).

CONCLUSIONS:

The occurrence of rapid weight gain between birth and 2 y and the magnitude of its effect on BF% development in AGA children is influenced by both intrauterine and postnatal exposures.

PMID:
18469259
DOI:
10.1093/ajcn/87.5.1356
[Indexed for MEDLINE]

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