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Article: Fetal Growth and Length of Gestation in Relation to Prenatal Exposure to Environmental Tobacco Smoke Assessed by Hair Nicotine Concentration.
- Article from:
- Environmental Health Perspectives
- Article date:
- June 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 National Institute of Environmental Health Sciences. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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We assessed the effects of prenatal exposure to environmental tobacco smoke on fetal growth and length of gestation. The study population consisted of 389 nonsmoking women who were selected from a population-based study in southeast Finland on the basis of questionnaire information after delivery (response rate 94%). The final exposure assessment was based on nicotine concentration of maternal hair sampled after the delivery, which measures exposure during the past 2 months (i.e., the third trimester). The exposure categories were defined a priori as high (nicotine concentration [is greater than or equal to] 4.00 [micro]g/g; n = 52), medium (0.75 to [is less than] 4.00 ...