Patterns of physical and psychological development in future teenage mothers

Nettle, Daniel and Dickins, Thomas E. and Coall, David A. and De Mornay Davies, Paul (2013) Patterns of physical and psychological development in future teenage mothers. Evolution, Medicine, and Public Health, 2013 (1). pp. 187-196. ISSN 2050-6201

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Abstract

Background and objectives:
Teenage childbearing may have childhood origins and can be viewed as the outcome of a coherent reproductive strategy associated with early environmental conditions. Life-history theory would predict that where futures are uncertain fitness can be maximized through diverting effort from somatic development into reproduction. Even before the childbearing years, future teenage mothers differ from their peers both physically and psychologically, indicating early calibration to key ecological factors. Cohort data has not been deliberately collected to test life-history hypotheses within Western populations. None the less, existing data sets can be used to pursue relevant patterns using socioeconomic variables as indices of relevant ecologies.

Methodology:
We examined the physical and psychological development of 599 young women from the National Child Development Study who became mothers before age 20, compared to 599 socioeconomically matched controls.

Results:
Future young mothers were lighter than controls at birth and shorter at age 7. They had earlier menarche and accelerated breast development, earlier cessation of growth, and shorter adult stature. Future young mothers had poorer emotional and behavioural adjustment than controls at age 7 and especially 11, and by age 16, idealised younger ages for marriage and parenthood than did the controls.

Conclusions and implications:
The developmental patterns we observed are consistent with the idea that early childbearing is a component of an accelerated reproductive strategy that is induced by early-life conditions. We discuss the implications for the kinds of interventions likely to affect the rate of teenage childbearing.

Item Type: Article
Research Areas: A. > School of Science and Technology > Psychology > Behavioural Biology group
A. > School of Science and Technology > Psychology
A. > School of Science and Technology > Psychology > Language, Learning and Cognition group
Item ID: 12275
Useful Links:
Depositing User: Tom Dickins
Date Deposited: 15 Nov 2013 16:18
Last Modified: 11 Sep 2018 05:07
URI: http://eprints.mdx.ac.uk/id/eprint/12275

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