Birth statistics of high birth weight infants (macrosomia) in Korea

Abstract

PurposeThe authors analyzed the trend from the birth-related statistics of high birth weight infants (HBWIs) over 50 years in Korea from 1960 to 2010.MethodsWe used 2 data sources, namely, the hospital units (1960's to 1990's) and Statistics Korea (1993 to 2010). The analyses include the incidence of HBWIs, birth weight distribution, sex ratio, and the relationship of HBWI to maternal age.ResultsThe hospital unit data indicated the incidence of HBWI as 3 to 7% in the 1960's and 1970's and 4 to 7% in the 1980's and 1990's. Data from Statistics Korea indicated the percentages of HBWIs among total live births decreased over the years: 6.7% (1993), 6.3% (1995), 5.1% (2000), 4.5% (2000), and 3.5% (2010). In HBWIs, the birth weight rages and percentage of incidence in infants' were 4.0 to 4.4 kg (90.3%), 4.5 to 4.9 kg (8.8%), 5.0 to 5.4 kg (0.8%), 5.5 to 5.9 kg (0.1%), and >6.0 kg (0.0%) in 2000 but were 92.2%, 7.2%, 0.6%, 0.0%, and 0.0% in 2009. The male to female ratio of HBWIs was 1.89 in 1993 and 1.84 in 2010. In 2010, the mother's age distribution correlated with low (4.9%), normal (91.0%), and high birth weights (3.6%): an increase in mother's age resulted in an increase in the frequency of low birth weight infants (LBWIs) and HBWIs.ConclusionThe incidence of HBWIs for the past 50 years has been dropping in Korea. The older the mother, the higher was the risk of a HBWI and LBWI. We hope that these findings would be utilized as basic data that will aid those managing HBWIs.

Trends in Birth Weight and the Incidence of Low Birth Weight and Advanced Maternal Age in Korea between 1993 and 2016

“…The risk of LBWIs and very LBWIs was high in mothers ≥ 35 years and the proportion of advanced maternal age and LBWIs in older mothers has increased 1829. In a study analyzing birth statistics from 1960 to 2010, both hospital unit and Statistics Korea data showed that the higher the maternal age, the higher the risk of both high birth weight infant (HBWI) and LBWI 30. In a survey using hospital data, maternal age ≥ 35 years was associated with LBWIs, Apgar scores less than 7, and chromosomal abnormalities.…”

Percentile Distributions of Birth Weight according to Gestational Ages in Korea (2010-2012)

“…Data from Statistics Korea reported that the percentages of HBW infants among total live births decreased over the years as follows: 6.7% (1993), 6.3% (1995), 5.1% (1997), 4.5% (2000), and 3.5% (2010). Between 1993 and 2010, the average BW of Korea was reduced from 3.31 kg in 1993 to 3.22 kg in 2010 by approximately 0.1 kg ( 30 ). Recent changes in percentages of HBW infants and average BW could help to explain why the new curves are shifted down in the older GA on the appropriate GA and large for GA curves.…”

Outcomes of pregnancy and delivery large fetus

“…Актуальность проблемы макросомии плода обусловлена в первую очередь высокой частотой перинатальной заболеваемости и смертности в сравнении со среднестатистическими показателями [3,[38][39][40].…”