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  • Title: Comparative validity between the Canadian and the Dutch norms of the Alberta Infant Motor Scale in a preterm population.
    Author: Gautier C, Alexandre M, Zaczek S, Mostaert A, Legros L.
    Journal: Child Care Health Dev; 2023 Jan; 49(1):36-43. PubMed ID: 35297080.
    Abstract:
    BACKGROUND: Prematurity remains a leading cause of motor developmental delays. The Alberta Infant Motor Scales (AIMS) is a useful tool to easily assess motor development. However, during the last decade, cross-cultural differences have been identified regarding the original AIMS norms. Therefore, the aim of this study is twofold: confirm the validity of the AIMS in a preterm population and compare the new Dutch AIMS norms to the original Canadian ones in our Belgian population. METHOD: Ninety-six preterm infants were assessed simultaneously on the AIMS and on the Bayley Scales of Infant-Toddler Development (Bayley-III) at age 9-14 months. Concurrent validity was evaluated by correlation analysis. Among these, 89 were assessed on the AIMS at age 3-6 months. Clinimetric properties of both AIMS norms were calculated to compare their ability to detect a motor delay on the Bayley-III at age 9-14 months. RESULT: Pearson's coefficient showed an excellent level of correlation between the two scales (r = 0.91). At age 3-6 months, only the 10th Canadian centile showed acceptable properties to predict a significant motor delay. At age 9-14 months, the 5th centile of both norms showed good properties to diagnose a significant motor delay, while only the Canadian norms seems to be sensitive enough to diagnose a mild motor delay. CONCLUSION: The new Dutch norms seem to be less sensitive but more specific than the Canadian ones and therefore require adapted cut-offs to diagnose motor developmental delays in a preterm population.
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