title: Associations of maternal prenatal smoking with early childhood physical aggression, hyperactivity-impulsivity, and their co-occurrence.
abstract: This study investigated associations between maternal prenatal smoking and physical aggression (PA), hyperactivity-impulsivity (HI) and co-occurring PA and HI between ages 17 and 42 months in a population sample of children born in Québec (Canada) in 1997/1998 (N=1745). Trajectory model estimation showed three distinct developmental patterns for PA and four for HI. Multinomial regression analyses showed that prenatal smoking significantly predicted children's likelihood to follow different PA trajectories beyond the effects of other perinatal factors, parental psychopathology, family functioning and parenting, and socio-economic factors. However, prenatal smoking was not a significant predictor of HI in a model with the same control variables. Further multinomial regression analyses showed that, together with gender, presence of siblings and maternal hostile reactive parenting, prenatal smoking independently predicted co-occurring high PA and high HI compared to low levels of both behaviors, to high PA alone, and to high HI alone. These results show that maternal prenatal smoking predicts multiple behavior regulation problems in early childhood.
authors.affiliation: Department of Clinical Child and Adolescent Studies, Section Neurodevelopmental Disorders, Faculty of Social Sciences, Leiden University, P.O. Box 9555, 2300 RB Leiden, The Netherlands. SHuijbregts@fsw.leidenuniv.nl
authors.forename: Stephan C J
authors.initials: SC
authors.lastname: Huijbregts
authors.forename: Jean R
authors.initials: JR
authors.lastname: Séguin
authors.forename: Mark
authors.initials: M
authors.lastname: Zoccolillo
authors.forename: Michel
authors.initials: M
authors.lastname: Boivin
authors.forename: Richard E
authors.initials: RE
authors.lastname: Tremblay
mesh_terms: D000374:Aggression / Q000523:psychology*; D001289:Attention Deficit Disorder with Hyperactivity / Q000453:epidemiology* / Q000523:psychology; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000453:epidemiology / Q000523:psychology; D007223:Infant; D016013:Likelihood Functions; D008137:Longitudinal Studies; D008297:Male; D016487:Parenting / Q000523:psychology; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D011792:Quebec; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects* / Q000453:epidemiology; D012959:Socioeconomic Factors; D013223:Statistics as Topic