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Early developmental assessment with a short screening test, the STEP, predicts one-year outcomes
Laurel Gower1, Dorothea Jenkins2, Jamie L Fraser3
1College of Medicine, MUSC, Charleston, SC, USA.
Objective:
To evaluate the Specific Test of Early Infant Motor Performance (STEP), a rapid screening test of preterm infants at risk for developmental delay.
Study Design:
We prospectively studied 23 preterm infants' performance on the STEP and the Test of Infant Motor Performance (TIMP) at term and 3 months, and on the Bayley-III at 12 months. We investigated the psychometric qualities of the STEP and determined STEP cutoff scores for low and high-performing infants.
Results:
STEP scores at term and 3 months strongly correlate with 12-month Bayley-III gross motor and cognitive scaled scores, while TIMP scores did not. The STEP showed excellent reliability and required 6-10 min to administer.
Conclusion:
STEP is a short, easy to administer, early developmental assessment with unique scoring that emphasizes qualitative and quantitative aspects of muscle tone in movements and predicts 12-month Bayley gross motor and cognitive scaled scores.
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