This article examines the association between two birth defects, neural tube defects and oral cleft defects, and maternal physical work demands during the periconceptional period.
A case-control study was conducted by comparing exposure characteristics of mothers of malformed infants, as ascertained from the New York State Congenital Malformations Registry (n=520), with mothers of non-malformed infants (n=1154).
Case groups were further subdivided on whether infants had additional defects.
Occupational exposure information was collected from a self-administered questionnaire, and demographic variables from vital records.
The results showed no general differences between cases and controls in most variables.
However, those infants with cleft defects plus additional defects tended to have a marginally increased risk (odds ratio=1.76 ; 95% confidence interval, 1.02-3.21) in relation to maternal jobs requiring standing (= 75% of time).
We suggest that exposure assessment be improved and defects subdivided for future studies.
Mots-clés Pascal : Activité professionnelle, Mère, Gestation, Malformation, Nouveau né, Homme, Tube neural, Bec de lièvre, Epidémiologie, Condition travail, Charge travail, Profession, Médecine travail, New York, Etats Unis, Amérique du Nord, Amérique, Nouveau né pathologie, Stomatologie, Système nerveux central pathologie, Système nerveux pathologie
Mots-clés Pascal anglais : Professional activity, Mother, Pregnancy, Malformation, Newborn, Human, Neural tube, Cleft lip, Epidemiology, Working condition, Workload, Profession, Occupational medicine, New York, United States, North America, America, Newborn diseases, Stomatology, Central nervous system disease, Nervous system diseases
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0479652
Code Inist : 002B17D. Création : 19/02/1999.