title: Spanking in early childhood and later behavior problems: a prospective study of infants and young toddlers.
abstract: OBJECTIVE
  To explore the relationship of spanking frequency before age 2 with behavior problems near time of entry into school.
  
  
  METHODS
  Children who were younger than 2 years were followed up approximately 4 years later, after they had entered school. The likelihood of significant behavior problems at follow-up was estimated in multivariate analyses that controlled for baseline spanking frequency and other characteristics. Participants were mothers from a large-scale national study and their children. Statistical analysis included an ethnically diverse sample of 1966 children aged 0 to 23 months at baseline. Two dichotomous indicators of behavior problems were used. The first indicated that maternal rating of child behavior problems exceeded a threshold. The second indicated that a mother met with a school administrator to discuss her child's behavior problems.
  
  
  RESULTS
  White non-Hispanic children who were spanked more frequently before age 2 were substantially more likely to have behavior problems after entry into school, controlling for other factors. For Hispanic and black children, associations between spanking frequency and behavior problems were not statistically significant and were not consistent across outcome measures.
  
  
  CONCLUSIONS
  Among white non-Hispanic children but not among black and Hispanic children, spanking frequency before age 2 is significantly and positively associated with child behavior problems at school age. These findings are consistent with those reported in studies of children older than 2 years but extend these findings to children who are spanked beginning at a relatively early age.
authors.affiliation: Johns Hopkins Bloomberg School of Public Health, Department of Health Policy and Management, Baltimore, Maryland, USA. eslade@jhsph.edu
authors.forename: Eric P
authors.initials: EP
authors.lastname: Slade
authors.forename: Lawrence S
authors.initials: LS
authors.lastname: Wissow
mesh_terms: D002648:Child; D002653:Child Behavior Disorders / Q000453:epidemiology*; D002668:Child Rearing / Q000208:ethnology; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D015999:Multivariate Analysis; D010287:Parent-Child Relations / Q000208:ethnology; D016487:Parenting / Q000208:ethnology; D011336:Probability; D011678:Punishment; D012307:Risk Factors; D012959:Socioeconomic Factors; D014481:United States / Q000453:epidemiology