Risk Factors and Life Processes Associated with Teenage Pregnancy: Results of a Prospective Study from Birth to 20 Years

Article excerpt

Data gathered over the course of a 20-year longitudinal study of 533 New Zealand women were used to (a) describe the extent and timing of pregnancies within the cohort up to age 20, and (b) examine the extent to which the risk of an early pregnancy was related to a range of social background, family, individual, and peer relationship factors measured over the course of childhood and adolescence. Results showed that by age 20, nearly a quarter of the sample had been pregnant at least once, with the majority of first pregnancies occurring between the ages of 17 and 20 years. The profile of those at greatest risk of a teenage pregnancy (<20 years) was that of an early-maturing girl with conduct problems who had been reared in a family environment characterized by parental instability and maternal role models of young single motherhood. As young adolescents, these girls were characterized by high rates of sexual risk-taking and deviant peer involvement. Exposure to social and individual adversity during both childhood and adolescence made independent contributions to an individual's risk of an early pregnancy. These findings were most consistent with a life course developmental

model of the etiology of teenage pregnancy. Implications for teenage pregnancy prevention are discussed.

Key Words: longitudinal study, risk factors, sexual behavior, teenage pregnancy.


This research was funded by grants from the Health Research Council of New Zealand, the National Child Health Research Foundation, the Canterbury Medical Research Foundation, and the New Zealand Lottery Grants Board.




American Psychiatric Association. (1987). Diagnostic and statistical manual of mental disorders (3rd ed., rev.). Washington, DC: Author.

American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.

Bardone, A. M., Moffitt, T. E., Caspi, A., Dickson, N., & Silva, P. (1996). Adult mental health and social outcomes of adolescent girls with depression and conduct disorder. Development and Psychopathology, 8. 811-829.


Brooks-Gunn, J., & Chase-Lansdale, P L. (1995). Adolescent parenthood. In M. Bornstein (Ed.), Handbook on parenting: Vol. 3. Who is the parent? (pp. 113-149). Mahwah, NJ: Lawrence Erlbaum.

Brooks-Gunn, J., Guo, G., & Furstenberg, E E (1993). Who drops out and who continues beyond high school. A 20-year follow-up of Black urban youth. Journal of Research on Adolescence, 3, 271-294.

Butler, J. R., & Burton, L. M. (1990). Rethinking teen


age childbearing: Is sexual abuse a missing link. Family Relations, 39, 73-80.

Capaldi, D. M., Crosby, L., & Stoolmiller, M. (1996). Predicting the timing of first sexual intercourse for at-risk adolescent males. Child Development, 67, 344-359.

Chase-Lansdale, P L., & Brooks-Gunn, J. (1994). Correlates of adolescent pregnancy and parenthood. In C. B. Fish & R. M. Lerner (Eds.), Applied developmental psychology (pp. 207-236). New York: McGrawHill.

Cheesbrough, S., Ingham, R., & Massey, D. (1999). Reducing the rate of teenage conceptions: A review of the international evidence on preventing and reducing teenage conceptions-The United States, Canada, Australia and New Zealand. London: Health Education Authority.

Christopher, E S. (1995). Adolescent pregnancy prevention. Family Relations, 44, 384-391.

Coley, R. L., & Chase-Lansdale, P L. (1998). Adolescent pregnancy and parenthood: Recent evidence and future directions. American Psychologist, 53, 152166.


Colletta, N. D. (1983). At risk for depression: A study of young mothers. Journal of Genetic Psychology, 142, 301-310.

Conners, C. K. (1969). A teacher rating scale for use in drug studies with children. …


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