Letters Caffeine in pregnancy

Authors’ reply

BMJ 2009; 338 doi: http://dx.doi.org/10.1136/bmj.b301 (Published 28 January 2009) Cite this as: BMJ 2009;338:b301
  1. Justin C Konje, professor of obstetrics and gynaecology1
  2. On behalf of Neelam Potdar and Marcus Cooke (Leicester) and Darren Greenwood, Alastair Hay, and Janet Cade (Leeds), for the CARE Study Group
  1. 1University of Leicester, Leicester LE2 7LX
  1. jck4{at}le.ac.uk

    Our study used detailed, objective, and validated measures of exposure.1 2 We prospectively quantified caffeine intake and included aspects of metabolism and smoking in our model. We included several such confounders in our analyses—for example, maternal weight, smoking, nausea, and pregnancy related complications of diabetes and hypertension. We conducted sensitivity analyses that excluded women who experienced pregnancy related hypertension and diabetes, and the results …

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