|Title||Pre-pregnancy body mass index, gestational weight gain and postnatal growth in preterm infants.|
|Publication Type||Journal Article|
|Year of Publication||2021|
|Authors||Joaquino SMilet, Lee HC, Abrams B|
|Date Published||2021 08|
|Keywords||Birth Weight, Body Mass Index, Cohort Studies, Female, Gestational Weight Gain, Humans, Infant, Infant, Newborn, Infant, Premature, Overweight, Pregnancy, Risk Factors, Weight Gain|
OBJECTIVE: To evaluate associations between pre-pregnancy body mass index (BMI), gestational weight gain (GWG), and postnatal growth in preterm infants.
DESIGN: A cohort study of 14,962 births < 32 weeks' gestation. We used multivariable linear regression to assess associations between maternal BMI or GWG (models stratified by BMI) and infant postnatal growth, defined as the difference between discharge and birth weight Z-scores based on Fenton or INTERGROWTH-21st growth charts.
RESULT: For BMI, obesity class 2 was positively associated with postnatal growth using the Fenton chart. Using INTERGROWTH-21st, inadequate or excessive GWG in women with underweight or obesity class 3 were associated with postnatal growth in different directions. Excessive GWG in women with normal weight was negatively associated with postnatal growth defined by Fenton.
CONCLUSION: Some categories of BMI and GWG were modestly associated with postnatal growth in preterm infants. Results were inconsistent within and between the INTERGROWTH-21st standard and Fenton growth reference.
|Alternate Journal||J Perinatol|