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Intergenerational teen pregnancy: a population-based cohort study.

N Liu^1,2, S N Vigod^1,2,3,4, M M Farrugia^5,6

¹Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada.

BJOG : an International Journal of Obstetrics and Gynaecology

|May 23, 2018

Summary

Teenage pregnancy shows a strong intergenerational link between mothers and daughters. This pattern extends to pregnancy outcomes, with a tendency for similar results like termination of pregnancy or live birth.

Keywords:

Adolescent daughter intergenerational mother teen childbirth teen pregnancy termination of pregnancy

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Area of Science:

Reproductive Health
Sociology
Genetics

Background:

Teenage pregnancy is a significant public health concern with complex etiological factors.
Intergenerational transmission of health behaviors and outcomes is observed across various domains.
Understanding familial patterns in teenage pregnancy can inform targeted prevention strategies.

Purpose of the Study:

To investigate the intergenerational association of teenage pregnancy between mothers and daughters.
To examine if there is a tendency for similar pregnancy outcomes (termination of pregnancy vs. live birth) across generations.

Main Methods:

A population-based cohort study was conducted in Ontario, Canada.
Data from 15,097 mothers and 16,177 daughters were analyzed.
Generalized estimating equations and multinomial logistic regression were used to assess associations, adjusting for multiple covariates.

Main Results:

Daughters of mothers with one, two, or three or more teenage pregnancies had significantly higher odds of experiencing teenage pregnancy (aORs 1.42, 1.97, 2.17, respectively).
A strong association was found for daughters having a teenage pregnancy ending in termination of pregnancy (TOP) if their mother also had a TOP (aOR 2.12).
Daughters were also more likely to have a live birth if their mother's teenage pregnancy(ies) resulted in live birth(s) (aOR 1.73).

Conclusions:

A robust intergenerational association exists for teenage pregnancy between mothers and daughters.
There is a notable coupling tendency in the outcomes of teenage pregnancies across generations.