Position: Reader in Evolutionary Psychology
Location: AE.3.08, Stratford
Telephone: +44 (0)20 8223 4005
Email: dickins@uel.ac.uk
Contact address:
School of Psychology
The University of East London
Stratford Campus
Water Lane
London
E15 4LZ
Tom is interested in the details of evolutionary theory as well as its application to behaviour. Presently, he is working on issues to do with early fertility in human populations as well as theoretical issues within evolutionary ecology and epigenetics.
A selected list of publications by Dr Tom Dickins is available from the institutional repository of the University of East London.
Daniel Nettle, David A. Coall and Thomas E. Dickins
There is considerable interest in the mechanisms maintaining early reproduction in the most socioeconomically disadvantaged groups in developed countries. Previous research has suggested that differential exposure to early-life factors such as low birthweight and lack of paternal involvement during childhood may be relevant. Here, we used longitudinal data on the female cohort members from the UK National Child Development Study (n=3014–5230 depending upon variables analysed) to investigate predictors of early reproduction. Our main outcome measures were having a child by age 20, and stating at age 16 an intended age of reproduction of 20 years or lower. Low paternal involvement during childhood was associated with increased likelihood of early reproduction (O.R. 1.79–2.25) and increased likelihood of early intended reproduction (O.R. 1.38–2.50). Low birthweight for gestational age also increased the odds of early reproduction (O.R. for each s.d. of birthweight 0.88) and early intended reproduction (O.R. for each additional s.d. of birtweight 0.81). Intended early reproduction strongly predicted actual early reproduction (O.R. 5.39, 95% CI 3.71–7.83). The results suggest that early-life factors such as low birthweight for gestational age, and low paternal involvement during childhood, affect women’s reproductive development, leading to earlier target and achieved ages for reproduction. Differential exposure to these factors is part of the reason that early fertility persists in socioeconomically disadvantaged groups. We discuss our results with respect to the kinds of interventions likely to affect the rate of teen pregnancy.
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