News ID: 273225
Published: 1145 GMT August 22, 2020

CDC: Mortality rates lowest for infants of normal-weight women

CDC: Mortality rates lowest for infants of normal-weight women
medicalxpress.com

Infants of women who are normal weight pre-pregnancy have the lowest total infant, neonatal, and post neonatal mortality rates, with increased rates seen for infants of women who are underweight or who have obesity pre-pregnancy, according to the National Vital Statistics Reports, a publication from the US Centers for Disease Control and Prevention (CDC).

Danielle M. Ely, Ph.D., from the National Center for Health Statistics in Hyattsville, Maryland, and colleagues present 2017 to 2018 infant mortality rates in the United States by maternal and infant characteristics, HealthDay reported.

The researchers found that infants of women who were normal weight pre-pregnancy had the lowest total infant, neonatal, and post neonatal mortality rates, which increased with increasing pre-pregnancy body mass index. Compared with infants of women who were normal or overweight before pregnancy, infants of women who were underweight pre-pregnancy had higher total, neonatal, and post neonatal mortality rates. Compared with infants born to women with obesity, mortality rates were generally, but not exclusively, higher for infants of underweight women. For all maternal age and race and Hispanic-origin groups, infants born to women of normal weight generally had lower mortality rates than infants born to women with obesity pre-pregnancy.

"Nonoptimal body mass index before pregnancy has implications for infant and maternal health, given the potential for adverse health outcomes for both women and infants," the authors wrote.

   
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