title: The association between preschool behavioural problems and internalizing difficulties at age 10-12 years.
abstract: The aim was to study the association between preschool behavioural problems and emotional symptoms in 10- to 12-year-old children. The study was based on the Aarhus Birth cohort, Denmark, and included 1,336 children. Based on the parent-administered preschool behaviour questionnaire (PBQ), we identified three not mutually exclusive preschool behavioural categories: anxious-fearful (n = 146), hyperactive-distractible (n = 98), and hostile-aggressive (n = 170). Children without any known symptoms were considered well adjusted (n = 1,000). Borderline emotional (n = 105) and emotional difficulties (n = 136) were measured at age 10-12 years with the parent-administered strength and difficulties questionnaire (SDQ). Multinomial logistic regression analyses were used to adjust for potential confounding factors. We found that anxious-fearful behaviour and hostile-aggressive preschool behaviour were associated with twice the risk of school-age emotional difficulties. Comorbidity or confounding failed to explain these results. Hyperactive-distractible preschool behaviour was not associated with school-age emotional difficulties. Preschool anxious-fearful behaviour was associated with school-age emotional difficulties, suggesting internalizing symptom stability in some children from early childhood. Preschool hostile-aggressive behaviour was also associated with school-age emotional difficulties, which suggests transformation of one behavioural dimension into another through childhood, and the need to focus on both early internalizing difficulties and hostile-aggressive behaviour as risk factors for later internalizing difficulties.
authors.affiliation: Aarhus University Hospital, Regional Centre for Child and Adolescent Psychiatry, Risskov, Denmark.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Slemming
authors.forename: Merete J
authors.initials: MJ
authors.lastname: Sørensen
authors.forename: Per H
authors.initials: PH
authors.lastname: Thomsen
authors.forename: Carsten
authors.initials: C
authors.lastname: Obel
authors.forename: Tine B
authors.initials: TB
authors.lastname: Henriksen
authors.forename: Karen M
authors.initials: KM
authors.lastname: Linnet
mesh_terms: D001007:Anxiety / Q000523:psychology*; D002648:Child; D002653:Child Behavior Disorders / Q000523:psychology*; D002675:Child, Preschool; D004522:Educational Status; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D010290:Parents; D012307:Risk Factors; D011795:Surveys and Questionnaires
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