[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.161.130.145. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Article
June 22, 1994

Hair Nicotine and Cotinine in Women and Newborn Infants-Reply

Author Affiliations

Hospital for Sick Children Toronto, Ontario

JAMA. 1994;271(24):1904-1905. doi:10.1001/jama.1994.03510480028017

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.

Abstract

In Reply.  —The difference between mean hair concentrations of nicotine in babies of nonsmokers (0.4 ng/mg) and passive smokers (0.28 ng/mg) was not statistically significant. Conversely, the difference in levels of cotinine was highly significant. As our study indicates, cotinine is a more accurate marker of exposure because of its substantially longer elimination half-life.Low exposure to nicotine is part of most people's diet, in the form of potatoes, tomatoes, and eggplants, to mention a few. Therefore, it is not surprising that there is some nicotine in most samples. In addition, even in cases of "true" nonsmokers, none of us can escape all the nicotine that surrounds us.We have no problem with you enjoying your cigar, as long as no pregnant woman is around.

First Page Preview View Large
First page PDF preview
First page PDF preview
×