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HERO ID
1240101
Reference Type
Journal Article
Title
In utero exposure to tobacco smoke and subsequent reduced fertility in females
Author(s)
Ye, X; Skjaerven, R; Basso, O; Baird, DD; Eggesbo, M; Cupul Uicab, LA; Haug, K; Longnecker, MP
Year
2010
Is Peer Reviewed?
Yes
Journal
Human Reproduction
ISSN:
0268-1161
EISSN:
1460-2350
Volume
25
Issue
11
Page Numbers
2901-2906
Language
English
PMID
20817739
DOI
10.1093/humrep/deq235
Abstract
BACKGROUND:
Animal studies have shown that in utero exposure to chemicals in tobacco smoke reduces female fertility, but epidemiological findings have been inconsistent.
METHODS:
We examined the association between in utero exposure to tobacco smoke and female fertility among women in the Norwegian Mother and Child Cohort Study, enrolled from 1999 to 2007. Around the 17th week of pregnancy, participants reported how long they took to conceive (time to pregnancy), and whether their mother smoked while pregnant with the participant. This analysis included 48 319 planned pregnancies among women aged 15-44 years. We estimated fecundability odds ratios (FORs) using a discrete-time survival analysis, adjusting for age, education and adult tobacco smoking.
RESULTS:
The adjusted FOR for in utero exposure to tobacco smoke among all subjects was 0.96 [95% confidence interval (CI): 0.93, 0.98], among subjects reporting no adult tobacco smoking or passive exposure it was 0.96 (95% CI: 0.93, 0.99) and among subjects reporting adult tobacco smoking or passive exposure it was 0.95 (95% CI: 0.91, 0.99). We performed a probabilistic sensitivity analysis to estimate the effect of exposure and outcome misclassification on the results, and, as expected, the association became more pronounced after taking misclassification into account.
CONCLUSIONS:
This large cohort study supports a small-to-modest association between in utero exposure to tobacco smoke and reduced fertility.
Tags
IRIS
•
Benzo(a)pyrene (BaP)
Considered
Cited
Developmental toxicity
Reproductive toxicity
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