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Risk Factors for Preterm Birth and Low Birth Weight in Extramarital Birth: 2008-2012 Birth Certificated Data

혼외 출생아의 조기분만과 저체중아 발생 위험도에 관한 연구: 2008-2012년 출생통계

  • Lim, Dar-Oh (Korea Health Industry Development Institute) ;
  • Park, Sang-Hwa (Institute of Reproductive Medicine and Population, Medical Research Center, Seoul National University)
  • 임달오 (한국보건산업진흥원) ;
  • 박상화 (서울대학교 의학연구원 인구의학연구소)
  • Received : 2014.05.27
  • Accepted : 2014.07.03
  • Published : 2014.09.30

Abstract

The objective of this study was to analyze the risk of preterm birth (PTB) and low birth weight (LBW) in extramarital birth by analyzing 2008-2012 birth certificated data (2,328,719 births) from Korea Statistics. Odds ratio and 95% confidence intervals (95% CI) were calculated from logistic regression analyses to describe the associations between PTB & LBW and extramarital birth adjusted for maternal age, maternal occupation & education, infantile sex, birth order and number of child birth (singleton & multiple birth). The rate of extramarital birth was 1.8 percent and 2.1 percent in 2010-11. The incidence of LBW was 8.1 percent in extramarital birth and 5.0 percent in marital birth. The incidence of PTB in extramarital birth were 8.2 percent and 5.8 percent in marital birth. Compared with marital birth, the odds ratio (OR) for PTB were 1.48 (95% CI: 1.43-1.54) for extramarital birth. Risk of LBW was higher in extramarital birth (OR: 1.70, 95% CI: 1.64-1.76) than that of marital birth. Among mothers younger than 20 years, the odds ratio of PTB among extramarital birth, relative to married birth was 1.69 (1.49-1.91). Among unmarried mothers, those at a higher risk of LBW was aged 20-29 years (1.69: 1.59-1.79). Maternal unmarried status was associated with increased risk of PTB and LBW.

Keywords

References

  1. S.J. Ventura(2009), Changing patterns of nonmarital childbearing in the United States. NCHS Data Brief, Hyattsville, Maryland, National Center for Health Statistics, Vol.18;1-8.
  2. S. McLanahan(1995), The consequences of nonmarital childbearing for women, children, and society. In: National Center for Health Statistics. Report to Congress on Out-of-Wedlock Childbearing, Hyattsville, Maryland, National Center for Health Statistics, pp.229-240,
  3. Statistics Korea (http://kosis.kr/statisticsList/statisticsList_01List.jsp?vwcd=MT_ZTITLE&parentId=A.
  4. J.A. Zeitlin, M.J. Saurel-Cubizolles, P.Y. Ancel, EUROPOP Group(2002), Marital status, cohabitation, and risk of preterm birth in Europe: where births outside marriage are common and uncommon, Paediatric and Perinatal Epidemiology, Vol.16(2);124-130. https://doi.org/10.1046/j.1365-3016.2002.00396.x
  5. G.S. Berkowitz, E. Papiernik(1993), Epidemiology of preterm birth, Epidemiologic Reviews, Vol.15(2);414-443.
  6. P.S. Shah, J. Zao, S. Ali, Knowledge Synthesis Group of Determinants of preterm/LBW births(2011), Maternal marital status and birth outcomes: a systematic review and meta-analyses, Maternal and Child Health Journal, Vol.15(7);1097-1109. https://doi.org/10.1007/s10995-010-0654-z
  7. A.M. El-Sayed, S. Galea(2011), Changes in the relationship between marriage and preterm birth, 1989-2006, Public Health Reports, Vol.126(5);717-725.
  8. S.T. Bird, A. Chandra, T. Bennett, S.M. Harvey(2000), Beyond marital status: relationship type and duration and the risk of low birth weight. Family Planning Perspectives, Vol.32(6);281-287. https://doi.org/10.2307/2648196
  9. V.L. Holt, N.L. Danoff, B.A. Mueller, M.W. Swanson(1997), The association of change in maternal marital status between births and adverse pregnancy outcomes in the second birth, Paediatric and Perinatal Epidemiology, Vol.11(S1);31-40. https://doi.org/10.1046/j.1365-3016.11.s1.6.x
  10. J. Balayla, L. Azoulay, H.A. Abenhaim(2011), Maternal marital status and the risk of stillbirth and infant death: a population-based cohort study on 40 million births in the United States, Womens Health Issues, Vol.21(5);361-365. https://doi.org/10.1016/j.whi.2011.04.001
  11. S.H. Eun, C.S. Park, M.H, Yang, J.A. Son, J.Y. Kim, D.H. Ahn(2001), A clinical observation of newborns of unmarried mothers. Journal of Korean Society of Neonatology, Vol.8(1);128-132.
  12. M.S. Kang, J.Y. Lee, S.H. Lee, E.H. Oh, C.W. Lee, B. Choi, Y.D. Shin, D.J. Kim(2002), The obstetrical and statistical aspects of the unmarried mother, Korean Journal of Obstetrics and Gynecology, Vol.45(8);1347-1353.
  13. S.H. Joo, D.W. Jang, J.Y. Beak, J.Y. Lee, I.S. Shon, S.N. Kim, S.J. Cho(2005), A study on pregnancy and social welfare of unmarried mother, Korean Journal of Obstetrics and Gynecology, Vol.48(7);1760-1766.
  14. Y.I. Kim, P.G. Kim(2012), Inpact of pre-marital pregnancy on birth outcome: evidence from South Korea. Korean Association of Applied Economics, Vol.14(3);209-238.
  15. S.H. Park, D.O. Lim(2005), Study on the risk of preterm birth in teenage delivery; using 2003 birth certificate data, Korean Public Health Research, Vol.31(2);170-173.
  16. S. Lurie, A. Zalmanovitch, A. Golan, O. Sadan(2010), The effect of marital status on pregnancy outcome in Israel: a retrospective case-control study, Journal of Obstetrics and Gynaecology Research, Vol.36(6);1161-1164. https://doi.org/10.1111/j.1447-0756.2010.01312.x
  17. S. Kirchengast, M. Mayer, M. Voigt(2007), Pregnancy outcome is associated with maternal marital status in Austria-even at the beginning of the 21st century, Anthropologischer Anzeiger, Vol.65(4);415-426.
  18. H. Phung, A. Bauman A, T.V. Nguyen, L. Young, M. Tran, K. Hillman(2003), Risk factors for low birth weight in a socio-economically disadvantaged population: parity, marital status, ethnicity and cigarette smoking, European Journal of Epidemiology, Vol.18(3);235-243.
  19. J.R. Bloch, D.A. Webb, L. Mathews, EF Dennis, I.M. Bennett, J.F. Culhane(2010), Beyond marital status: the quality of the mother-father relationship and its influence on reproductive health behaviors and outcomes among unmarried low income pregnant women, Maternal and Child Health Journal, Vol.14(5);726-734. https://doi.org/10.1007/s10995-009-0509-7
  20. K. Sullivan, R.K. Raley, R.A. Hummer, E. Schiefelbein(2012), The potential contribution of marital-cohabitation status to racial, ethnic, and nativity differentials in birth outcomes in Texas, Maternal and Child Health Journal, Vol.16(4);775-784. https://doi.org/10.1007/s10995-011-0801-1
  21. P.O. Lopez, G. Breart(2013), Sociodemographic characteristics of mother's population and risk of preterm birth in Chile, Reproductive Health, Vol.10;26. https://doi.org/10.1186/1742-4755-10-26
  22. A.M. El-Sayed, M. Tracy, S. Galea(2012), Life course variation in the relation between maternal marital status and preterm birth, Annals of Epidemiology, Vol.22(3);168-174. https://doi.org/10.1016/j.annepidem.2012.01.002
  23. O.M. Loto, O.C. Ezechi, B.K. Kalu, A. Loto, L. Ezechi, S.O. Ogunniyi(2004), Poor obstetric performance of teenagers: is it age- or quality of care-related? Journal of Obstetric and Gynecology, Vol.24(4);395-398. https://doi.org/10.1080/01443610410001685529
  24. L. Gortzak-Uzan, M. Hallak, F. Press, M. Katz, I. Shoham-Vardi(2001), Teenage pregnancy: risk factors for adverse perinatal outcome, Journal of Maternal Fetal Medicine, Vol.10(6);393-397. https://doi.org/10.1080/jmf.10.6.393.397
  25. M.S. Lee, S.G. Jang, G.J. Zhin, Y.S. Lee(2007), The obstetrical study on pregnancy and delivery of unmarried mother, Korean Journal of Perinatology, Vol.8(3);222-232.

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