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CDC: Low Birthweight Rate Increased From 2014 to 2016

Low, moder­ately low birth­weight rates increased 2014-2016 for all race, Hispanic-origin groups

THURSDAY, March 22, 2018 (HealthDay News) -- From 2014 to 2016 there was an increase in the singleton low birth­weight rate, which was mainly due to increases in the rate of moder­ately low birth­weight, according to a March data brief published by the U.S. Centers for Disease Control and Prevention's National Center for Health Statistics (NCHS).

Lindsay S. Womack, Ph.D., from the NCHS in Hyattsville, Md., and colleagues used data from the National Vital Statistics System to examine singleton low birth­weight rates by race and Hispanic origin from 2006 to 2016.

The researchers found that the singleton low birth­weight (<2,500 g) rate declined from 2006 to 2014 (6.49 to 6.24 percent) and then increased in 2015 (6.34 percent) and 2016 (6.44 percent). The recent increase reflects an increase in the rate of moder­ately low birth­weight (1,500 to 2,499 g); during 2014 to 2016 the rate of very low birth­weight (<1,500 g) was stable. From 2014 to 2016, the low and moder­ately low birth­weight rates increased for each race and Hispanic-origin group. From 2006 to 2016, the rate of singleton low birth­weight was more than twice as high for non-Hispanic black versus non-Hispanic white infants.

"For each race and Hispanic-origin group, the increases in singleton low birth­weight were primarily driven by increases in MLBW moder­ately low birth­weight births," the authors write.

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