Did the researchers look at breastfed vs not breastfed in this study, I
wonder?

-- Jodine Chase
Edmonton, Alberta, Canada


International Journal of Obesity , (21 August 2012) | doi
:10.1038/ijo.2012.132
Infant antibiotic exposures and early-life body mass

L Trasande, J Blustein, M Liu, E Corwin, L M Cox and M J Blaser
Abstract

Objectives:

To examine the associations of antibiotic exposures during the first 2
years of life and the development of body mass over the first 7 years of
life.

...

Conclusions:

Exposure to antibiotics during the first 6 months of life is associated
with consistent increases in body mass from 10 to 38 months. Exposures
later in infancy (6–14 months, 15–23 months) are not consistently
associated with increased body mass. Although effects of early exposures
are modest at the individual level, they could have substantial
consequences for population health. Given the prevalence of antibiotic
exposures in infants, and in light of the growing concerns about childhood
obesity, further studies are needed to isolate effects and define
life-course implications for body mass and cardiovascular risks
.
link to abstract:
http://www.nature.com/ijo/journal/vaop/ncurrent/full/ijo2012132a.html

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