Newt News

Newborn Weight Tool shown to have utility in low- and middle-income countries

Posted: Sep 13, 2023

(Ginsburg AS et al., Scientific Reports 2023;13:14128 []) In a study funded by the Bill and Melinda Gates Foundation, investigators compared weight trajectories in the first 5 days after birth among newborns born in a low- and middle-income countries (LMIC) cohort with those used to develop NEWT. Between April 2019 and March 2020, a convenience sample […]


Paul recognized for pediatric research excellence

Posted: Jun 15, 2022

Dr. Ian Paul has been selected for the 2022 American Pediatric Association Research Award, which recognizes an investigator who has advanced pediatric knowledge through excellence in research. Read the full story.


Newborn Weight Tool marks fifth anniversary of helping providers track infant growth

Posted: Feb 10, 2020

The Newborn Weight Tool (NeWT), developed by Dr. Ian Paul, a pediatrician and professor of pediatrics and public health sciences at Penn State College of Medicine, is enjoying a good measure of online celebrity.. The tool allows providers to compare a newborn’s weight loss against data from more than 160,000 infants. It has earned 2 million […]


Supplementary Feedings in the Healthy Term Breastfed Neonate

Posted: May 12, 2017

The use of NEWT has been included in the Academy of Breastfeeding Medicine Clinical Protocol #3: Supplementary Feedings in the Healthy Term Breastfed Neonate, Revised 2017. In this protocol, clinicians are encouraged to utilize NEWT to determine the weight loss range for a newborn when considering the need for supplementary feedings. Download the Report (PDF)


Newborns often take weeks to return to birth weight

Posted: Nov 29, 2016

Even though doctors often tell parents that newborns will regain weight lost after birth within a week or two, many infants take much longer to achieve this milestone, a U.S. study suggests.


Weight Change Nomograms for the First Month After Birth

Posted: Nov 25, 2016

Clinicians expect newborns to surpass birth weight by age 10 to 14 days, yet few studies have examined the natural history of weight change in the weeks after birth. We sought to determine the distribution of weight loss and subsequent regain during the first month, the proportion not surpassing birth weight by 14 and 21 […]


External Validation of Early Weight Loss Nomograms for Exclusively Breastfed Newborns

Posted: Nov 5, 2015

Nomograms that show hour-by-hour percentiles of weight loss during the birth hospitalization were recently developed to aid clinical care of breastfeeding newborns. The nomograms for breastfed neonates were based on a sample of 108,907 newborns delivered at 14 Kaiser Permanente medical centers in Northern California (United States). The objective of this study was to externally […]


Early Weight Loss Nomograms for Exclusively Breastfed Newborns

Posted: Nov 4, 2015

The majority of newborns are exclusively breastfed during the birth hospitalization, and weight loss is nearly universal for these neonates. The amount of weight lost varies substantially among newborns with higher amounts of weight loss increasing risk for morbidity. No hour-by-hour newborn weight loss nomogram exists to assist in early identification of those on a […]


Early Weight Loss Nomograms for Formula Fed Newborns

Posted: Nov 3, 2015

Data regarding delivery mode, race/ethnicity, feeding type, and weights were extracted from electronic medical records of the birth hospitalization at 14 Kaiser Permanente Northern California hospitals between 2009 and 2013. Newborns whose first feeding was formula from a cohort of 161471 healthy, term, singleton neonates born at ≥36 weeks’ gestation between 2009 and 2013 were […]


Study shows some newborns lose weight much faster than previously recognized

Posted: Dec 1, 2014

Online tool is first to help parents and pediatricians assess newborn weight loss Using weights obtained from over 100,000 Northern California babies, a new study is the first to detail the weight loss patterns of exclusively breastfed newborns. The results show that some breastfed babies lose weight faster and for a longer period than was previously […]