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Maternal prepregnancy body mass index and gestational weight gain on offspring overweight in early infancy
1Tianjin Women's and Children's Health Center, Tianjin, China ; Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America.
Insights
Maternal prepregnancy overweight/obesity and excessive gestational weight gain (GWG) are linked to greater infant growth. Excessive GWG increases the risk of childhood overweight and obesity.
Area of Science:
- Pediatrics
- Obstetrics
- Public Health
Background:
- Maternal prepregnancy body mass index (BMI) and gestational weight gain (GWG) are critical factors influencing offspring's early growth and development.
- Understanding these associations is vital for developing targeted interventions to promote healthy child development.
Purpose of the Study:
- To evaluate the association between maternal prepregnancy BMI and GWG with offspring anthropometry from birth to 12 months in Tianjin, China.
Main Methods:
- A cohort of 38,539 pregnant women and their children were studied between 2009 and 2011.
- Offspring anthropometry was measured at birth and at 3, 6, 9, and 12 months.
- General Linear Models and Logistic Regression were used to analyze the associations.
Main Results:
- Maternal prepregnancy BMI and GWG positively correlated with offspring's birth weight and length Z-scores.
- Excessive GWG led to significant changes in weight-for-age and length-for-age Z-scores in infants.
- Excessive GWG was associated with a higher risk of offspring overweight or obesity at 12 months.
Conclusions:
- Maternal overweight/obesity and excessive GWG are linked to accelerated infant weight and length gain.
- Excessive GWG significantly elevates the risk of infant overweight and obesity.
Objective:
The aim of the present study was to evaluate the association of maternal prepregnancy body mass index (BMI) and gestational weight gain (GWG) with anthropometry in the offspring from birth to 12 months old in Tianjin, China.
Methods:
Between 2009 and 2011, health care records of 38,539 pregnant women had been collected, and their children had been measured body weight and length at birth, 3, 6, 9 and 12 months of age. The independent and joint associations of pre-pregnancy BMI and GWG based on the Institute of Medicine (IOM) guidelines with anthropometry in the offspring were examined using General Linear Model and Logistic Regression.
Results:
Prepregnancy BMI and maternal GWG were positively associated with Z-scores for birth weight-for-gestational age, birth length-for-gestational age, and birth weight-for-length. Infants born to mothers with excessive GWG had the greatest changes in Z-scores for weight-for-age from birth to Month 3, and from Month 6 to Month 12, and the greatest changes in Z-scores for length-for-age from birth to months 3 and 12 compared with infants born to mothers with adequate GWG. Excessive GWG was associated with an increased risk of offspring overweight or obesity at 12 months old in all BMI categories except underweight.
Conclusions:
Maternal prepregnancy overweight/obesity and excessive GWG were associated with greater weight gain and length gain of offspring in early infancy. Excessive GWG was associated with increased infancy overweight and obesity risk.
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