Letters
Birth month and cardiovascular mortality
Authors’ reply to Erren and colleagues
BMJ 2020; 368 doi: https://doi.org/10.1136/bmj.m867 (Published 06 March 2020) Cite this as: BMJ 2020;368:m867
- Eva Schernhammer, professor of epidemiology12,
- Yin Zhang, research fellow in medicine2,
- Susanne Strohmaier, research fellow in medicine12,
- Elizabeth Devore, instructor in medicine2,
- Fran Grodstein, professor of medicine2
- 1Medical University of Vienna, Vienna, Austria
- 2Channing Division of Network Medicine, Harvard Medical School, Boston, MA, USA
- eva.schernhammer{at}channing.harvard.edu
We appreciate Erren and colleagues’ response to our recently published paper, suggesting we examine photoperiod (hours of daylight).12
A fundamental question in health remains whether fetal adaptations in response to adverse intrauterine conditions increase the risk of childhood and adulthood disease.3 Barker and colleagues’ observation that birth weight predicts future risk of ischaemic heart disease4 has received renewed attention through the potential impact of early life environments, such as nutritional status and …
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