Consumption of coffee during pregnancy: Authors should adjust for  history of drug abuse

doi:10.1136/bmj.326.7401.1268-a

BMJ 2003;326:1268 (7 June), doi:10.1136/bmj.326.7401.1268-a

Letter

Consumption of coffee during pregnancy

Authors should adjust for history of drug abuse

The first 150 words of the full text of this article appear below.

EDITOR—We read with interest the article of Wisborg et al.¹ The authors support that high maternal coffee consumptionduring pregnancy is associated with an increased risk of stillbirthbut not with infant death. They mention that women with a highintake of coffee are more likely to be smokers and to havea high intake of alcohol. They correctly adjusted their resultsfor smoking and drinking habits. However, they do not provideany information about drug abuse among these women.

Consumption of eight or more cups of coffee is suggestive ofaddictive behaviour. The use of illegal drugs such as cocaineis associated with an increased incidence of parallel cigaretteand alcohol use.^{2
3} The adverse effect of maternal use ofheroin, cocaine, crack cocaine, and benzodiazepines in pregnancyhas been adequately documented.^3–5 The use of cannabismay not be a major prognostic factor regarding the outcome of pregnancy . . . [Full text of this article]

Michael Sindos, clinical research fellow

sindosgyn@hotmail.com

Narendra Pisal, clinical research fellow

Department of Women's Health, Whittington Hospital, London N19 5NF

Stavroula Michala, SSHO in obstetrics and gynaecology

Women's Health Directorate, St Thomas' Hospital, London SE1 7EH

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Maternal consumption of coffee during pregnancy and stillbirth and infant death in first year of life: prospective study: Kirsten Wisborg, Ulrik Kesmodel, Bodil Hammer Bech, Morten Hedegaard, and Tine Brink Henriksen
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