title: Use of the Ages and Stages Questionnaire and Bayley Scales of Infant Development-II in neurodevelopmental follow-up of extremely low birth weight infants.
abstract: OBJECTIVE
  For infants born with extremely low birth weight (ELBW), we examined the (1) correlation between results on the Ages and Stages Questionnaire (ASQ) and the Bayley Scales of Infant Development-II (BSID-II) at 18 to 22 months corrected age; (2) degree to which earlier ASQ assessments predict later BSID-II results; (3) impact of ASQ use on follow-up study return rates.
  
  
  METHODS
  ASQ data were collected at 4, 8, 12 and 18 to 22 months corrected age. The BSID-II was completed at 18 to 22 months corrected age. ASQ and BSID-II 18 to 22 month sensitivity and specificity were examined. Ability of earlier ASQs to predict later BSID-II scores was examined through linear regression analyses.
  
  
  RESULTS
  ASQ sensitivity and specificity at 18 to 22 months were 73 and 65%, respectively. Moderate correlation existed between earlier ASQ and later BSID-II results.
  
  
  CONCLUSIONS
  For extremely low birth weight infant assessment, the ASQ cannot substitute for the BSID-II, but seems to improve tracking success.
authors.affiliation: Department of Psychiatry and Behavioral Sciences, The Children's Hospital of Denver, Denver, CO 80045, USA. Woodward.Barbara@tchden.org
authors.forename: B J
authors.initials: BJ
authors.lastname: Woodward
authors.forename: L-A
authors.initials: LA
authors.lastname: Papile
authors.forename: J R
authors.initials: JR
authors.lastname: Lowe
authors.forename: V L
authors.initials: VL
authors.lastname: Laadt
authors.forename: M L
authors.initials: ML
authors.lastname: Shaffer
authors.forename: R
authors.initials: R
authors.lastname: Montman
authors.forename: K L
authors.initials: KL
authors.lastname: Watterberg
mesh_terms: D002657:Child Development; D002658:Developmental Disabilities / Q000175:diagnosis; D006801:Humans; D007223:Infant; D052577:Infant, Extremely Low Birth Weight; D007231:Infant, Newborn; D009460:Neurologic Examination; D011597:Psychomotor Performance; D011795:Surveys and Questionnaires