National Research Council. The Best Intentions:Unintended Pregnancy and the Well-Being of Children and Families. Washington, DC: The National Academies Press; 1995.
Mosher WD, Jones J, Abma JC. Intended and unintended births in the United States: 1982–2010. Natl Health Stat Report. 2012;55:1–28.
Gipson JD, Koenig MA, Hindin MJ. The effects of unintended pregnancy on infant, child, and parental health: a review of the literature. Stud Fam Plann. 2008;39(1):18–38.
McCrory C, McNally S. The effect of pregnancy intention on maternal prenatal behaviours and parent and child health: results of an irish cohort study. Paediatr Perinat Epidemiol. 2013;27(2):208–15.
Dott M, Rasmussen SA, Hogue CJ, Reefhuis J, National Birth Defects Prevention S. Association between pregnancy intention and reproductive-health related behaviors before and after pregnancy recognition, National Birth Defects Prevention Study, 1997–2002. Matern Child Health J. 2010;14(3):373–81.
Han JY, Nava-Ocampo AA, Koren G. Unintended pregnancies and exposure to potential human teratogens. Birth Defects Res A Clin Mol Teratol. 2005;73(4):245–8.
Hromi-Fiedler AJ, Perez-Escamilla R. Unintended pregnancies are associated with less likelihood of prolonged breast-feeding: an analysis of 18 Demographic and Health Surveys. Public Health Nutr. 2006;9(3):306–12.
Singh A, Chalasani S, Koenig MA, Mahapatra B. The consequences of unintended births for maternal and child health in India. Popul Stud (Camb). 2012;66(3):223–39.
de La Rochebrochard E, Joshi H. Children born after unplanned pregnancies and cognitive development at 3 years: social differentials in the United Kingdom Millennium Cohort. Am J Epidemiol. 2013;178(6):910–20.
Carson C, Redshaw M, Sacker A, Kelly Y, Kurinczuk JJ, Quigley MA. Effects of pregnancy planning, fertility, and assisted reproductive treatment on child behavioral problems at 5 and 7 years: evidence from the Millennium Cohort Study. Fertil Steril. 2012;99(2):456–63.
Hayatbakhsh MR, Najman JM, Khatun M, Al Mamun A, Bor W, Clavarino A. A longitudinal study of child mental health and problem behaviours at 14 years of age following unplanned pregnancy. Psychiatry Res. 2011;185(1–2):200–4.
Barber JS, Axinn WG, Thornton A. Unwanted childbearing, health, and mother-child relationships. J Health Soc Behav. 1999;40(3):231–57.
Cleland K, Peipert JF, Westhoff C, Spear S, Trussell J. Family planning as a cost-saving preventive health service. N Engl J Med. 2011;364(18):e37.
Finer LB, Zolna MR. Shifts in intended and unintended pregnancies in the United States, 2001–2008. Am J Public Health. 2014;104 Suppl 1:S43–8.
Singh S, Sedgh G, Hussain R. Unintended pregnancy: worldwide levels, trends, and outcomes. Stud Fam Plann. 2010;41(4):241–50.
Lee J: Planned Pregnancy, Parenting, and Infant Development. In: The first conference of the Panel Study on Korean Children 2010.10.29. Hoam faculty house. Seoul National University. 2010;2010:349–62.
Mun MJ, Jeong JH, Choe JS, An HG, Lyu HM, Im HJ, et al. The Rate of Planned Pregnancy and Associated Factors Related to Planned Pregnancy. Obstet Gynecol Sci. 2003;46(9):1741–5.
Maxson P, Miranda ML. Pregnancy intention, demographic differences, and psychosocial health. J Womens Health (Larchmt). 2011;20(8):1215–23.
Hardee K, Eggleston E, Wong EL, Irwanto, Hull TH. Unintended pregnancy and women’s psychological well-being in Indonesia. J Biosoc Sci. 2004;36(5):617–26.
Orr ST, Miller CA. Unintended pregnancy and the psychosocial well-being of pregnant women. Womens Health Issues. 1997;7(1):38–46.
Bunevicius R, Kusminskas L, Bunevicius A, Nadisauskiene RJ, Jureniene K, Pop VJ. Psychosocial risk factors for depression during pregnancy. Acta Obstet Gynecol Scand. 2009;88(5):599–605.
Yanikkerem E, Ay S, Piro N. Planned and unplanned pregnancy: effects on health practice and depression during pregnancy. J Obstet Gynaecol Res. 2013;39(1):180–7.
Karacam Z, Onel K, Gercek E. Effects of unplanned pregnancy on maternal health in Turkey. Midwifery. 2011;27(2):288–93.
Lau Y, Keung DW. Correlates of depressive symptomatology during the second trimester of pregnancy among Hong Kong Chinese. Soc Sci Med. 2007;64(9):1802–11.
Nakku JE, Nakasi G, Mirembe F. Postpartum major depression at six weeks in primary health care: prevalence and associated factors. Afr Health Sci. 2006;6(4):207–14.
East PL, Chien NC, Barber JS. Adolescents’ Pregnancy Intentions, Wantedness, and Regret: Cross-Lagged Relations With Mental Health and Harsh Parenting. J Marriage Fam. 2012;74(1):167–85.
Zanutto EL. A Comparison of Propensity Score and Linear Regression Analysis of Complex Survey Data. J Data Science. 2006;4(1):67–91.
Christensen AL, Stuart EA, Perry DF, Le H-N. Unintended pregnancy and perinatal depression trajectories in low-income, high-risk Hispanic immigrants. Prev Sci. 2011;12(3):289–99.
Mercier RJ, Garrett J, Thorp J, Siega-Riz AM. Pregnancy intention and postpartum depression: secondary data analysis from a prospective cohort. BJOG. 2013;120(9):1116–22.
Najman JM, Morrison J, Williams G, Andersen M, Keeping JD. The mental health of women 6 months after they give birth to an unwanted baby: a longitudinal study. Soc Sci Med. 1991;32(3):241–7.
Beck CT. Predictors of postpartum depression: an update. Nurs Res. 2001;50(5):275–85.
Ruchala PL, James DC. Social support, knowledge of infant development, and maternal confidence among adolescent and adult mothers. J Obstet Gynecol Neonatal Nurs. 1997;26(6):685–9.
Shin N, Lee J, Kim M, Kim Y, Cho B, Hong S, et al. Panel Study on Korean Children : Preliminary report. In: Korea Institute of Child Care and Education. 2007.
Kessler RC, Andrews G, Colpe LJ, Hiripi E, Mroczek DK, Normand SL, et al. Short screening scales to monitor population prevalences and trends in non-specific psychological distress. Psychol Med. 2002;32(6):959–76.
Kessler RC, Barker PR, Colpe LJ, Epstein JF, Gfroerer JC, Hiripi E, et al. Screening for serious mental illness in the general population. Arch Gen Psychiatry. 2003;60(2):184–9.
Kessler RC, Galea S, Jones RT, Parker HA. Mental illness and suicidality after Hurricane Katrina. Bull World Health Organ. 2006;84(12):930–9.
Kim KH, Kang HK. Development of the Parenting Stress Scale. Fam Environ Res. 1997;35(5):141–50.
Abidin R. Parenting Stress Index—Third Edition (PSI): Professional manual. Odessa, FL: Psychological Assessment Resources, Inc.; 1995.
Abidin RR. Parenting stress index: Manual (PSI). Charlottesville, Va: Pediatric Psychology Press; 1983.
Abidin RR. Parenting Stress Index:(Short Form). Charlottesville, Va: Pediatric Psychology Press; 1990.
Crnic KA, Greenberg MT. Minor parenting stresses with young children. Child Dev. 1990;61(5):1628–37.
Mann MB, Thornburg KR. Guilt of working women with infants and toddlers in day care. Early Child Dev Care. 1987;27(3):451–64.
Markman H, Stanley S, Blumberg SL. Fighting for your marriage : positive steps for preventing divorce and preserving a lasting love. 1st ed. San Francisco: Jossey-Bass; 2001.
H-s C. A Basic Study for Developing “the Marriage Preparation Program”. J Korean Home Manag. 2004;22(1):91–101.
Hong SR. Studies in the variables related to the thirties husband’s family role performances. Seoul: KyungHee University, Unpublished Dissertation; 1995.
Kang HK. Dual - Career Parenting Stress: Effects of Mother’s Values and Support systems. Seoul: Kyung Hee University, Unpublished Dissertation; 1998.
MacPhee D. Knowledge of Infant Development Inventory: Survey of child care experiences & manual. In: Unpublished manuscript, Colorado State University. 2002.
Rosenbaum PR. Observational studies. New York: Springer-Verlag; 1995.
Szklo M, Nieto J. Epidemiology: Beyond the Basics. Burlington, MA: Jones & Bartlett Learning; 2007. p. 160.
Nelson JA, O’Brien M. Does an Unplanned Pregnancy Have Long-Term Implications for Mother-Child Relationships? J Fam Issues. 2012;33(4):506–26.
Claridge AM, Chaviano CL. Consideration of Abortion in Pregnancy: Demographic Characteristics, Mental Health, and Protective Factors. Women Health. 2013;53(8):777–94.
Wellings K, Jones KG, Mercer CH, Tanton C, Clifton S, Datta J, et al. The prevalence of unplanned pregnancy and associated factors in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3). Lancet. 2013;382(9907):1807–16.
Kim Choe M, Kim S-K. Pregnancy Wastage among Married Women in South Korea. Asian Popul Stud. 2007;3(1):37–55.
Ahn HS, Seol H-J, Lim J-E, Hong S-h, Lee SY, Park M-I, et al. Estimates of induced abortion in South Korea: Health facilities survey. J Obstet Gynaecol Res. 2012;38(1):324–8.
Hall KS, Kusunoki Y, Gatny H, Barber J. The risk of unintended pregnancy among young women with mental health symptoms. Soc Sci Med. 2014;100:62–71.
James-Hawkins L, Denardo D, Blalock C, Mollborn S. Do depressive symptoms in male and female adolescents predict unintended births in emerging adulthood? Matern Child Health J. 2014;18(9):2115–23.
Stidham Hall K, Moreau C, Trussell J, Barber J. Young women’s consistency of contraceptive use–does depression or stress matter? Contraception. 2013;88(5):641–9.
Austin PC. An Introduction to Propensity Score Methods for Reducing the Effects of Confounding in Observational Studies. Multivariate Behav Res. 2011;46(3):399–424.
Rosenbaum PR, Rubin DB. The central role of the propensity score in observational studies for causal effects. Biometrika. 1983;70(1):41–55.