Obstet Gynecol Sci.  2020 Sep;63(5):623-630. 10.5468/ogs.20081.

Maternal, infant, and perinatal mortality statistics and trends in Korea between 2009 and 2017

• Lee KJ
• Sohn S
• Vital Statistics Division, Statistics Korea
• Hong K
• Kim J
• Kim R
• Lee S
• Youn H
• Kim YJ

• KMID: 2506505
• DOI: http://doi.org/10.5468/ogs.20081

Abstract

Objective
To provide updates on maternal, infant, and perinatal mortality using the national population data of South Korea between 2009 and 2017 and describe the mortality rate by target groups, timing, or causes of events to provide a basis for detecting vulnerable populations and ensuring timely medical and political interventions.
Methods
Pregnancy-related mortality in women, as well as deaths of infants, in South Korea was identified using population data from Statistics Korea. Records from death certificates, cremation reports on infant and fetal deaths, and the complementary cause-of-death investigation system were reviewed for the 2009–2017 period.
Results
A total of 461 maternal deaths, 11,717 infant deaths, and 12,249 perinatal deaths, including fetal deaths over 28 gestational weeks, were identified from 3,945,159 live births between 2009 and 2017. The maternal mortality ratio was 13.5 deaths per 100,000 live births in 2009 and decreased to 7.8 in 2017. Only the rate of deaths related to hypertensive disorders showed an increasing tendency. Both the infant and perinatal mortality rates improved (from 3.2 deaths per 1,000 live births in 2009 to 2.8 in 2017 and from 3.5 to 2.7, respectively). Among the external causes of infant mortality, assaults including homicides accounted for 25% (n=150), and this proportion was constant throughout the study period.
Conclusion
Overall improvements were observed in all maternal, infant, and perinatal mortality measures. In-depth analysis and interventions with respect to certain causes, such as hypertensive disorders in mothers or assaults in infants, should be considered priority issues.

Keyword

Maternal mortality; Infant mortality; Perinatal mortality; Cause of death; South Korea

Figure

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  Fig. 1. Infant mortality by condensed list of cause of death: Korea, 2009–2017.

Reference

References

1. OECD Statistics. Health status: maternal and infant mortality [Internet]. Paris: OECD;c2020. [cited 2019 Apr 20]. Available from: https://stats.oecd.org/index.aspx?queryid=30116.

2. Shin HY, Lee JY, Song J, Lee S, Lee J, Lim B, et al. Infant, maternal, and perinatal mortality statistics in the Republic of Korea, 2014. J Korean Med Assoc. 2017; 60:588–97.

3. Ministry of Justice. Act on the Registration, etc. of Family Relationships [Internet]. Gwacheon: Ministry of Justice;c2017. [cited 2019 Apr 20]. Available from: https://elaw.klri.re.kr/kor_service/lawView.do?hseq=45910&lang=ENG.

4. Ministry of Justice. Act on Funeral Services, etc. [Internet]. Gwacheon: Ministry of Justice;c2017. [cited 2019 Apr 20]. Available from: https://elaw.klri.re.kr/kor_service/lawView.do?hseq=46423&lang=ENG.

5. World Health Organization. International statistical classification of diseases and related health problems. 2nd ed. Geneva: World Health Organization;2004.

6. Alkema L, Chou D, Hogan D, Zhang S, Moller AB, Gemmill A, et al. Global, regional, and national levels and trends in maternal mortality between 1990 and 2015, with scenario-based projections to 2030: a systematic analysis by the UN Maternal Mortality Estimation InterAgency Group. Lancet. 2016; 387:462–74.

7. World Health Organization. Trends in maternal mortality: 1990–2015: estimates from WHO, UNICEF, UNFPA, World Bank Group and the United Nations Population Division: executive summary. Geneva: World Health Organization;2015.

8. Konyang University; The Ministry of Health and Welfare. The evaluation study of supporting policy for underserved area of obstetric care [Internet]. Nonsan: Konyang University, The Ministry of Health and Welfare;c2012. [cited 2019 Aug 1]. Available from: http://www.prism.go.kr/homepage/researchCommon/downloadResearchAttachFile.do;jsessionid=85C00DC2C82DF7C7598233434584FA44.node02?work_key=001&file_type=CPR&seq_no=001&pdf_conv_yn=Y&research_id=1351000-201300012.

9. Eskenazi B, Fenster L, Sidney S. A multivariate analysis of risk factors for preeclampsia. JAMA. 1991; 266:237–41.

10. Laopaiboon M, Lumbiganon P, Intarut N, Mori R, Ganchimeg T, Vogel JP, et al. Advanced maternal age and pregnancy outcomes: a multicountry assessment. BJOG. 2014; 121 Suppl 1:49–56.

11. Poon LC, Kametas NA, Chelemen T, Leal A, Nicolaides KH. Maternal risk factors for hypertensive disorders in pregnancy: a multivariate approach. J Hum Hypertens. 2010; 24:104–10.

12. Kang SH, Kim SH, Cho JH, Yoon CH, Hwang SS, Lee HY, et al. Prevalence, awareness, treatment, and control of hypertension in Korea. Sci Rep. 2019; 9:10970.

13. Tran BT, Jeong BY, Oh JK. The prevalence trend of metabolic syndrome and its components and risk factors in Korean adults: results from the Korean National Health and Nutrition Examination Survey 2008–2013. BMC Public Health. 2017; 17:71.

14. Hsieh TT, Liou JD, Hsu JJ, Lo LM, Chen SF, Hung TH. Advanced maternal age and adverse perinatal outcomes in an Asian population. Eur J Obstet Gynecol Reprod Biol. 2010; 148:21–6.

15. Kenny LC, Lavender T, McNamee R, O’Neill SM, Mills T, Khashan AS. Advanced maternal age and adverse pregnancy outcome: evidence from a large contemporary cohort. PLoS One. 2013; 8:e56583.

16. Hasegawa J, Sekizawa A, Tanaka H, Katsuragi S, Osato K, Murakoshi T, et al. Current status of pregnancy-related maternal mortality in Japan: a report from the Maternal Death Exploratory Committee in Japan. BMJ Open. 2016; 6:e010304.

17. Berg CJ, Atrash HK, Koonin LM, Tucker M. Pregnancy-related mortality in the United States, 1987–1990. Obstet Gynecol. 1996; 88:161–7.

18. Chen XK, Wen SW, Fleming N, Demissie K, Rhoads GG, Walker M. Teenage pregnancy and adverse birth outcomes: a large population based retrospective cohort study. Int J Epidemiol. 2007; 36:368–73.

19. Girma S, Paton D. Is education the best contraception: the case of teenage pregnancy in England? Soc Sci Med. 2015; 131:1–9.