Predictive validity of the Hand Assessment for Infants in infants at risk of unilateral cerebral palsy.

HAI scores demonstrated overall accuracy that ranged from very good to excellent in predicting unilateral CP in infants at risk aged between 3.5 and 12 months. This accuracy increased with age at assessment and the earliest possible prediction was at 3.5 months of age, when appropriate HAI cut-off values for different ages were applied. What this paper adds The Hand Assessment for Infants (HAI) predicts unilateral cerebral palsy (CP) with high accuracy. HAI cut-off values can guide clinical practice for early identification and diagnosis of unilateral CP.