Correlates of body mass index and overweight and obesity of children aged 2 years: Findings from the Healthy Beginnings Trial.

Auteur(s) :
Baur LA., Xu H., Wen LM., Rissel C., Simpson JM.
Date :
Jan, 2014
Source(s) :
OBESITY (SILVER SPRING). # p
Adresse :
Sydney School of Public Health, Sydney Medical School, University of Sydney, Australia; Health Promotion Service, South Western Sydney & Sydney Local Health Districts, New South Wales, Australia. [email protected]

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Objective:
We sought to determine early life factors that predict body mass index (BMI) and overweight/obesity of children aged 2 years.

Design and Methods:
A longitudinal and prospective analysis was conducted with 330 first-time mothers and their newborns. Children's weight and length were measured at two years. Main factors of interest included reported infant feeding practices, children's fruit/vegetable consumption and TV time. Maternal demographic data, weight and height, and smoking status were collected by face-to-face interview at baseline. Multiple linear and logistic regression models were run to determine factors that predicted BMI or overweight/obesity of children aged 2 years respectively.

Results:
At age 2 years, 242 remained in the study (retention rate 73%). Mean (SD) BMI of children was 16.87 kg/m² (1.62), with 14% classified as overweight/obese. Factors predicting lower child BMI were longer breastfeeding duration, and less TV viewing time, as well as maternal healthy pre-pregnancy weight status. Factors predicting children's overweight/obesity status were shorter breastfeeding duration, and earlier introduction of solid food.

Conclusions:
At 2 years of age, longer breastfeeding duration was associated with lower BMI, while greater TV viewing time was associated with higher BMI, after adjusting for other factors. Early introduction of solids was independently associated with overweight or obesity.

Source : Pubmed
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