Birth weight charts for a Chinese population: an observational study of routine newborn weight data from Chongqing.

ABSTRACT:

Background

To construct birth weight charts for the Chongqing municipality, China and to identify whether differences in birth weight exist across urban/rural populations, thereby warranting separate charts.

Methods

Secondary analysis of routinely collected data from 338,454 live infants between 2014 and 2017 in Chongqing municipality. Sex-specific birth weight-for-gestational age centiles were constructed by the lambda-mu-sigma method via the GAMLSS R-based package. This method remodels the skewed birth weight distribution to estimate a normal distribution, allowing any birth weight centile to be generated. A separate set of centiles were created, accounting for urban/rural differences in birth weight.

Results

The centiles performed well across all gestational ages.

SUBMITTER: Zhao X 

PROVIDER: S-EPMC6844044 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature