Do currently recommended Bayley-III cutoffs overestimate motor impairment in infants born <27 weeks gestation?
- Resource Type
- Article
- Authors
- Duncan, A F; Bann, C; Boatman, C; Hintz, S R; Vaucher, Y E; Vohr, B R; Yolton, K; Heyne, R J
- Source
- Journal of Perinatology. Jul2015, Vol. 35 Issue 7, p516-521. 6p. 1 Diagram, 3 Charts.
- Subject
- *DEVELOPMENTAL disabilities
*PREMATURE infants
*MOTOR ability
*REGRESSION analysis
*RESEARCH funding
*LOGISTIC regression analysis
*RETROSPECTIVE studies
*RECEIVER operating characteristic curves
*DATA analysis software
*DISABILITIES
- Language
- ISSN
- 0743-8346
Objective:To determine whether a Bayley-III motor composite score of 85 may overestimate moderate-severe motor impairment by analyzing Bayley-III motor components and developing cut-point scores for each.Study Design:Retrospective study of 1183 children born <27 weeks gestation at NICHD Neonatal Research Network centers and evaluated at 18-22 months corrected age. Gross Motor Function Classification System determined gross motor impairment. Statistical analyses included linear and logistic regression and sensitivity/specificity.Results:Bayley-III motor composite scores were strong indicators of gross/fine motor impairment. A motor composite cut-point of 73 markedly improved the specificity for identifying gross and/or fine motor impairment (94% compared with a specificity of 76% for the proposed new cut-point of 85). A Fine Motor Scaled Score <3 differentiated mild from moderate-severe fine motor impairment.Conclusions:This study indicates that a Bayley-III motor composite score of 85 may overestimate impairment. Further studies are needed employing term controls and longer follow-up. [ABSTRACT FROM AUTHOR]