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Birth outcomes of immigrant women married to native men in the Republic of Korea: a population register-based study.

Abstract：

OBJECTIVES:The Republic of Korea (Korea) has experienced a steady increase in the number of births from immigrant women over the last 20 years. However, little is known about the birth outcomes of immigrant women in Korea. This study compared Korean birth data from immigrant and native women who married native men, and explored the factors that affected birth outcomes among immigrant women. DESIGN:Observational cross-sectional study. SETTING:Nationwide registry-based study in Korea. PARTICIPANTS:A total of 70 258 records from immigrant women and 1700 976 records from native women were examined using the National Birth Registration Database, from 2010 to 2013. INDEPENDENT VARIABLE:Native Korean women and immigrant women who married native men. OUTCOMES:Proportion of preterm births, post-term births, low birth weights and macrosomia. RESULTS:Adjusted ORs (aOR) were calculated for the adverse birth outcomes, and subgroup analyses were performed according to parity and mothers from three Asian countries (China, Vietnam, the Philippines). Multivariate logistic regression analyses were also conducted to evaluate the association of these factors with birth outcomes among immigrant women. Immigrant women had higher OR of post-term births (aOR 1.62; 95% CI 1.44 to 1.83) and low birth weights (aOR 1.17; CI 1.12 to 1.22). Mothers from the Philippines had higher OR of preterm births (aOR 1.26; CI 1.12 to 1.52) and Chinese mothers had higher OR of macrosomia (aOR 1.55; CI 1.44 to 1.66). The OR of post-term births and low birth weights was significantly higher in the first pregnancies of immigrant women. CONCLUSIONS:This study has demonstrated higher proportions of adverse birth outcomes among immigrant women who married Korean men, compared with native women in Korea. Policies reducing the gap in birth outcomes between native and immigrant women are needed.

journal_name

BMJ Open

journal_title

BMJ open

authors

Song IG,Kim MS,Shin SH,Kim EK,Kim HS,Choi S,Kwon S,Park SM

doi

10.1136/bmjopen-2017-017720

subject

Has Abstract

pub_date

2017-09-24 00:00:00

pages

e017720

issue

9

issn

2044-6055

pii

bmjopen-2017-017720

journal_volume

7

pub_type

杂志文章

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