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  1. Association of childhood cancer with factors related to pregnancy and birth.

    Article - En anglais

    Background It has been hypothesized that risk factors of childhood cancers may already operate during the prenatal and neonatal period.

    Results of previous epidemiological studies have been inconsistent.

    Methods During 1992-1997 a large case-control study on childhood cancers and a variety of potential risk factors was conducted in Germany.

    Cases were ascertained by the German Childhood Cancer Registry.

    Each case was matched to a population-based control of the same age and gender, sampled from the district where the case lived at the date of diagnosis.

    For the analyses, 2358 cases and 2588 controls were available.

    Results Risk of childhood acute leukaemia increased with maternal age <=20 years at time of delivery (odds ratio [OR]=1.9,95% CI : 1.1-3.2), lower (<2500 g : OR=1.7,95% CI : 1.1-2.8) and higher birthweight (>4000 g : OR=1.4,95% CI : 1.0-1.8, P<0.05), and hormonal treatment because of infertility (OR=1.6,95% CI : 1.0-2.5, P<0.05).

    No associations were seen for parental smoking habits, maternal alcohol consumption during pregnancy and fetal losses.

    Parity was associated only with subgroups of acute leukaemias.

    Regarding non-Hodgkin's lymphoma we observed an elevated OR for lower birthweight and heavy maternal smoking during pregnancy (>20 cigarettes/day) and a decreased OR for children with one or two siblings.

    Only a few significant findings were seen for the different groups of solid tumours. (...)

    Mots-clés Pascal : Leucémie, Lymphome malin, Enfant, Homme, Facteur risque, Etude cas témoin, Allemagne, Europe, Epidémiologie, Gestation, Age mère, Poids naissance, Traitement, Stérilité, Parité, Tabagisme, Fratrie, Hémopathie maligne

    Mots-clés Pascal anglais : Leukemia, Malignant lymphoma, Child, Human, Risk factor, Case control study, Germany, Europe, Epidemiology, Pregnancy, Maternal age, Birth weight, Treatment, Sterility, Parity, Tobacco smoking, Sibling, Malignant hemopathy

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0425145

    Code Inist : 002B19B. Création : 22/03/2000.