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KMID : 0892720140180010134
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Journal of the Korean Society of Maternal and Child Health
2014 Volume.18 No. 1 p.134 ~ p.142
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Macrosomia in Singleton Births in Korea, 2010~2011
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Park Sang-Hwa
Lim Dar-Oh
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Abstract
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Objectives: This study was performed to investigate the incidence of macrosomia (≥4.0 kg), 1993~2011, and the risk of macrosomia by analyzing 2010~2011 singleton birth certificated data (912,480 births) from Statistics Korea.
Methods: Odds ratio (OR) and 95% confidence intervals were calculated from multivariate logistic regression analyses to describe the association between macrosomia and risk factors.
Results: The incidence rate of macrosomia in total births decreased from 6.7 percent in 1993~94 to 3.5 percent in 2010~2011. Male infants had a significantly higher odds ratio for macrosomia (OR: 1.78, 95% CI: 1.74~1.82, p<0.01). The risk of macrosomia in post-term gestation (≥42 weeks) was 2.44 (2.12~2.81, p<0.01), compared with preterm & term gestation. Compared to women aged ≤29 years old, the odds ratio of macrosomia were 1.14 for 30~34 years old, 1.23
for age 35~39 years old, and 1.25 for 40~44 years old. The risk of macrosomia was 1.05 (1.02~ 1.07, p<0.01) for the second birth order and 1.41 (1.36~1.46, p<0.01) for the third and over birth order, compared with the first birth order. A slight increase in the rate of macrosomia by birth season was observed in spring (3.6 percent), and winter (3.9 percent), compared with summer (3.4 percent). Compared with maternal occupation (reference group: managers etc.), women who
were service workers had increased OR (1.07) of macrosomia. Risk of macrosomia was higher in mothers with high school than that of middle school educational level.
Conclusions: There were significantly association between macrosomia and risk factors (infantile sex, birth order, post-term gestation, maternal age and season of birth).
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KEYWORD
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macrosomia, birth weight, risk factor
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