%0 Journal Article
%T Updated Gestational Age Specific Birthweight Reference of Hong Kong Chinese Newborns and Comparison with Local and International Growth Charts
%A Irene W. Y. Lok
%A Meliza C. W. Kong
%A William W. K. To
%J Open Journal of Obstetrics and Gynecology
%P 940-954
%@ 2160-8806
%D 2021
%I Scientific Research Publishing
%R 10.4236/ojog.2021.118090
%X <strong>Background:</strong><span><span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\"> Different gestational </span><span style=\"font-family:Verdana;\">age specific</span> <span style=\"font-family:Verdana;\">birthweight</span><span style=\"font-family:Verdana;\"> reference charts have been
produced for different populations and ethnic groups over different </span><span style=\"font-family:Verdana;\">time periods</span><span style=\"font-family:Verdana;\">, mostly based on birthweight data.
This study aims to update birthweight references for Hong Kong (HK) Chinese
newborns to provide norms for identification of </span><a name=\"_Hlk11503682\"></a><span style=\"font-family:Verdana;\">small
and large for gestational age (SGA and LGA) fetuses, and to verify whether
there are significant differences compared to previously published local
reference charts, as well as to other southern Chinese </span><span style=\"font-family:Verdana;\">and international</span><span style=\"font-family:Verdana;\"> data. </span><b><span style=\"font-family:Verdana;\">Methods:</span></b><span style=\"font-family:Verdana;\"> All singleton Chinese
livebirths deliv</span><span style=\"font-family:Verdana;\">ered in United Christian
Hospital from 2012 to 2017 were retrospectively included. The smoothed
birthweight centiles at each gestation were computed. The birthweight centiles
were then compared with other reference charts.</span></span></span></span><span><span><span style=\"font-family:&quot;\"> </span></span></span><span style=\"font-family:Verdana;\"><span style=\"font-family:Verdana;\"><b><span style=\"font-family:Verdana;\">Results:</span></b></span></span><span><span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\"> A total of 25,508 </span><span style=\"font-family:Verdana;\">livebirths</span><span style=\"font-family:Verdana;\"> between 24 and 42 completed weeks of gestation were enrolled in the final
analysis. The mean birthweights of our cohort were largely similar to previous
studies at each gestation, but the 10th and 90th centile ranges differed </span><span style=\"font-family:Verdana;\">significantly,</span><span style=\"font-family:Verdana;\"> so that the proportion of babies
that would be classified as SGA or LGA varied widely using cut-offs from
different studies. </span></span></span></span><span><span><span style=\"font-family:&quot;\"><span style=\"font-family:Verdana;\">Older local studies tend to </span><span style=\"font-family:Verdana;\">under-estimate</span><span style=\"font-family:Verdana;\">, while
%K Birthweight
%K Intrauterine Growth
%K Percentile
%K Hong Kong
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=111131