title: Comparison of performance of Sri Lankan and US children on cognitive and motor scales of the Bayley scales of infant development.
abstract: BACKGROUND
  There is no validated scale to assess neurodevelopment of infants and children in Sri Lanka. The Bayley III scales have used widely globally but it has not been validated for Sri Lankan children. We administered the Cognitive and Motor Scales of the Bayley III to 150 full-term children aged 6, 12 and 24 months from the Gampaha District of Sri Lanka. We compared the performance of Sri Lankan children 6, 12 and 24 months of age on the cognitive and motor scales of the Bayley III with that of US children.
  
  
  RESULTS
  Compared to the US norms, at 12 months, Sri Lankan children had significantly higher cognitive scores and lower gross motor scores, and at 24 months significantly lower cognitive scores. The test had a high test-retest reliability among Sri Lankan children.
  
  
  CONCLUSIONS
  There were small differences in the cognitive and motors scores between Sri Lankan and US children. It is feasible to use Bayley III scales to assess neurodevelopment of Sri Lankan children. However, we recommend that the tool be validated using a larger representative sample of all population groups.
authors.affiliation: Faculty of Medicine, University of Kelaniya, Ragama, Sri Lanka. pavithragodamunne@gmail.com.
authors.forename: Pavithra
authors.initials: P
authors.lastname: Godamunne
authors.forename: Chathurika
authors.initials: C
authors.lastname: Liyanage
authors.forename: Nalin
authors.initials: N
authors.lastname: Wimaladharmasooriya
authors.forename: Arunasalem
authors.initials: A
authors.lastname: Pathmeswaran
authors.forename: Ananda Rajitha
authors.initials: AR
authors.lastname: Wickremasinghe
authors.forename: Cryshelle
authors.initials: C
authors.lastname: Patterson
authors.forename: Nalini
authors.initials: N
authors.lastname: Sathiakumar
mesh_terms: D017677:Age Distribution; D002657:Child Development / Q000502:physiology*; D002675:Child, Preschool; D003071:Cognition / Q000502:physiology*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009048:Motor Skills / Q000502:physiology*; D012959:Socioeconomic Factors; D013188:Sri Lanka; D014481:United States