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KMID : 0892719970010020205
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Journal of the Korean Society of Maternal and Child Health
1997 Volume.1 No. 2 p.205 ~ p.222
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A Study on the Large Birth Weight using a Vital Statistics in Korea
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Kim Moo-Ryong
Nam Chul-Hyun
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Abstract
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The objective of this study was to analyze the status of large birth
weight(macrosomia) and factors affecting incidence of macrosomia in Korea. The data
was collected from vital statistics of National Vtal Statistical Office of Korea. Total
birth cases were 711,129 during 1994.
1. The largest proportion of birth weight was 3.00-3.49kg group(44.2 percent in male
and 48.2 percent in female). The incidence of low birth weight was higher in female(3.1
percent) than that of male(2.5 percent). The incidence of macrosomia was 8.2percent in
male and 4.8percent in female. Mean birth weight by sex was 3.4031㎏ in male, 3.3001kg
in female and 3.3553kg in both sex.
2. The distribution of normal birth weight(2.50-3.99kg) by maternal age was
92.1percent in under 20 years old and 88.8percent in aged 40 and over. The incidence of
low/high birth weight increased with maternal age. Mean birth weight by maternal age
group in both sex was 3.3710kg in 30-34 age group, and 3.2808kg in under 20 years old.
Mean birth weight increased with increasing maternal age.
3. The proportion of normal birth weight decreased with ranking birth order from 1st
to 4th order. The incidence of low/large birth weight increased with ranking birth order.
Mean birth weight by birth order in both sex was 3.3319kg in 1st birth order, 3.3689kg
in 2nd, 3.4276kg in 3rd and 3.4266kg in 4th and over.
4. The incidence of macrosomia was higher in male than that of female. The risk for
macrosomia in male was 1.76(odds ratio) compared with female infant. The odds ratios
for risk of macrosomia were 1.05 in 2nd birth, 2.07 in 3rd and 2.45 in 4th and over
compared with the incidence of macrosomiain 1st birth order.
The incidence of macrosomia by maternal age in both sex increased with increasing
maternal age; from 4.5 in under 20 years of age to 7.7percent in aged 40 and over. The
odds ratios for risk of macrosomia in maternal age were 0.76 in under 20 years, 1.13 in
20-29 years, 1.37 in 30-34 years, 1.42 in 35-39 years, and 1.35 in aged 40 and over
compared with the incidence of macrosomia in women 20 to 24 years old.
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KEYWORD
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Large birth weight, vital statistics
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