Risk factors during the prenatal period and the first year of life associated with overweight in 7-year-old low-income Chilean children
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2015Metadata
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Ríos Castillo, Israel
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Risk factors during the prenatal period and the first year of life associated with overweight in 7-year-old low-income Chilean children
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Abstract
The objective of this study was to identify in low-income Chilean children with normal birthweight which factors
occurring during the prenatal period and the first year are associated with overweight (OW)/obesity at 7 years.
The sample included 652 7-year-olds from a larger cohort study.We collected anthropometric data at 0, 12 and
84 months, maternal pre-pregnancy and pregnancy characteristics, early feeding practices, number of siblings,
birth order, breastfeeding, and timing of solid introduction information.We determined the residuals for z-scores
for body mass index (BMI) (BAZ), weight/age and height/age0–12 months, run univariate analysis (X2 or t-test) and
multivariate logistic analyses (stepwise approach); P < 0.05 was considered significant.We evaluated the goodness
of fit of the model using the Hosmer–Lemeshow test and checked for overdispersion using the Pearson’s X2.
The odds of children being OW at 7 years increased if their mothers were OW before pregnancy, if born with a
higher BAZ (increase of 18–74% per each additional unit of BAZ) and if their BAZ growth during the first year
was higher (62–239% per each unit over the predicted BAZ increase). Higher birth order was protective (6–68%
less risk for 2nd birth compared with 1st and 10–73% less for 3rd child). All other variables, including gender,
were non-significant (P > 0.1). In low-income Chilean children with normal birth, four factors during the prenatal
period and the first year were associated with OW at 7 years: pre-pregnancy BMI, BMI at birth, BMI gain
between 0 and 12 months, and birth order
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Artículo de publicación ISI
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CONICYT
Proyecto Fondecyt 1090252
JUNAEB
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URI: https://repositorio.uchile.cl/handle/2250/135912
DOI: DOI: 10.1111/mcn.12024
ISSN: 1740-8695
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Maternal and Child Nutrition (2015), 11, pp. 595–605
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