American Journal of Epidemiology © The Author(s) 2017. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/4.0), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact
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Vol. 186, No. 11 DOI: 10.1093/aje/kwx177 Advance Access publication: June 1, 2017
Original Contribution Advanced Maternal Age and the Risk of Low Birth Weight and Preterm Delivery: a Within-Family Analysis Using Finnish Population Registers
Alice Goisis*, Hanna Remes, Kieron Barclay, Pekka Martikainen, and Mikko Myrskylä * Correspondence to Alice Goisis, Department of Social Policy, London School of Economics and Political Science, Houghton Street, London WC2A 2AE, United Kingdom (e-mail:
[email protected]).
Initially submitted April 2, 2016; accepted for publication January 19, 2017.
Advanced maternal age at birth is considered a major risk factor for birth outcomes. It is unclear to what extent this association is confounded by maternal characteristics. To test whether advanced maternal age at birth independently increases the risk of low birth weight (
