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Maternal occupational pesticide exposure and risk of hypospadias in the National Birth Defects Prevention Study.

Authors
Rocheleau-CM; Romitti-PA; Sanderson-WT; Sun-L; Lawson-CC; Waters-MA; Stewart-PA; Olney-RS; Reefhuis-J
Source
Birth Defects Res A Clin Mol Teratol 2011 Nov; 91(11):927-936
NIOSHTIC No.
20039752
Abstract
BACKGROUND: Hypospadias is a common congenital malformation among men in which the urethral opening is ventrally displaced. Pesticide exposure has been suggested as a possible etiologic factor, but previous epidemiologic studies have produced inconsistent results. METHODS: We used data from the National Birth Defects Prevention Study (NBDPS), a population-based case-control study, to examine maternal occupational exposure to fungicides, insecticides, and herbicides among 647 hypospadias case infants and 1496 unaffected male control infants with estimated delivery dates from October 1997 to December 2002. Periconceptional (1 month before conception through the first trimester of pregnancy) pesticide exposures were assigned by an expert rater, assisted by a job-exposure matrix (JEM), from a job history completed by mothers during a telephone interview. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated with multivariable logistic regression, and adjusted for relevant covariates. RESULTS: Maternal periconceptional occupational exposure to any pesticides (yes/no) was not associated with an increased risk of hypospadias (OR = 0.78; 95% CI = 0.61-1.01). Maternal occupational periconceptional pesticide exposure type (insecticides, fungicides, and herbicides) and estimated quantity also showed no significantly increased risk of hypospadias and no evidence of a dose-response relationship; however, the estimated pesticide exposure levels in this population were low. CONCLUSION: Using broad classes of insecticides, herbicides, and fungicides, we found no evidence that low intensity maternal periconceptional occupational pesticide exposure was a risk factor for hypospadias. Birth Defects Research (Part A) 2011.
Keywords
Humans; Men; Congenital-effects; Urogenital-system; Urogenital-system-disorders; Pesticides; Exposure-levels; Exposure-limits; Environmental-hazards; Environmental-exposure; Environmental-factors; Fungicides; Insecticides; Herbicides; Birth-defects; Endocrine-system; Endocrine-system-disorders; Reproductive-system-disorders; Author Keywords: hypospadias; pesticides; agrochemicals; birth defects; urogenital malformation; endocrine disruption
Contact
Carissa M. Rocheleau, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, MS R-15, Cincinnati, OH 45226
CODEN
BDRPBT
Publication Date
20111101
Document Type
Journal Article
Email Address
CRocheleau@cdc.gov
Funding Type
Contract; Cooperative Agreement
Fiscal Year
2012
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U50-CCU-713238; Contract-200-2000-08018; B10122011
Issue of Publication
11
ISSN
1542-0752
NIOSH Division
DSHEFS; DART
Priority Area
Manufacturing
Source Name
Birth Defects Research Part A: Clinical and Molecular Teratology
State
GA; IA; OH; VA; WA
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