Diagnostic Accuracy of Bayley III Screening Tool to Detect Developmental Delay in Moderate to High-Risk Indian Preterm Children.

The present study aimed to evaluate the ability of the Bayley III screening tool to detect developmental delay in moderate to high-risk preterm children in India. In this cross-sectional study, 94 preterm babies were enrolled. The Bayley III screener (index test) and the gold-standard, Developmental assessment scale for Indian Infants (DASII) test were administered to all the enrolled children. Researchers were blinded while performing the tests. Diagnostic accuracy parameters were compared. The Bayley III screener's sensitivity and specificity for predicting the delay (with a DASII cut-off of <70) were 84.62% and 85.18% in the mental domain and 61.11% and 96.05% in the motor domain, respectively. When the DASII cut-off was raised to 85, the sensitivity and specificity in the mental domain were 60.61% and 95.08%, respectively, whereas they were 36.11% and 98.27%, respectively, in the motor domain. The Bayley III screener is found to have good specificity rather than sensitivity with good predictive values.